Stick and MIG Welding: The Complete Guide

A Saturday morning on a farm, a snapped tractor bracket, thirty-mile-per-hour wind, and two welders in the yard — one wheeling out a MIG machine, the other throwing a lead over his shoulder with a box of electrodes. The MIG welder couldn’t keep an arc in the gusts; the stick welder finished the repair in the open air. That single scene captures the entire stick-and-MIG question: both processes fuse steel, but they behave completely differently once real-world conditions show up.

Introduction: Two Welding Processes, One Goal

A Saturday morning on a farm, a snapped tractor bracket, thirty-mile-per-hour wind, and two welders standing in the yard. One of them wheels out a MIG machine, threads the wire, hooks up the gas bottle. The other throws a lead over his shoulder, grabs a stinger and a box of electrodes, and walks over. Within minutes the MIG welder is chasing a wandering arc that the gusts keep blowing apart, while the stick welder strikes, chips slag, and finishes the repair out in the open air. Same steel, same crack, two completely different outcomes.

That scene is the whole stick-and-MIG question in miniature. Both processes fuse metal with an electric arc, both are legitimate professional tools, and both are taught in nearly every welding program on the planet. But the moment real-world conditions show up, wind, rust, position, thickness, time pressure, they behave nothing alike. The principal question this article answers is simple: for a given job, which process should you pick, and why?

Stick Welding and MIG Welding in Plain Language

Stick welding is officially Shielded Metal Arc Welding, abbreviated SMAW. You clamp a consumable, flux-coated electrode into a holder, strike an arc against the workpiece, and melt both the electrode and the base metal together. The flux coating burns into a shielding gas around the arc and hardens into a layer of slag over the finished bead. That is where the name comes from: the electrode is literally a stick of filler metal. There is no gas bottle, no wire feeder, just a power source, a lead, and a box of rods.

MIG welding is officially Gas Metal Arc Welding, abbreviated GMAW. A spool of thin wire feeds continuously through a handheld gun while an external cylinder of shielding gas flows out of the nozzle around the arc. The wire is both the electrode and the filler metal, so the arc never has to stop, which is why MIG has a reputation for speed and for being the friendliest process for a beginner to pick up.

Both are arc welding processes standardized by the American Welding Society, an organization that has authored more than 350 welding standards, including the Structural Welding Code–Steel, D1.1. Both also fall under OSHA’s Welding, Cutting, and Brazing safety program and share the same core hazards: arc radiation, electric shock, fumes and gases, and fire.

At-a-Glance Comparison

Factor	Stick (SMAW)	MIG (GMAW)
Shielding	Flux coating on the electrode	External shielding gas
Filler delivery	Consumable stick, stop and replace	Continuous wire spool
Wind tolerance	High, usable outdoors	Low, gas blanket blows away
Dirty or rusty metal	Forgiving	Requires clean base metal
Learning curve	Steeper, arc length by feel	Gentler, settings-driven
Cleanup	Chip and brush slag	Wipe or grind spatter
Setup	Power source and rods	Machine, wire, gas bottle
Portability	Compact, simple to haul	Bulkier with gas and feeder
Typical best use	Field repair, structural, position work	Sheet metal, fabrication, production

Why do these two get compared more than any other pair? Because in a typical shop or farm, they cover most of the work a person will ever need to join. Stick travels light and survives conditions that shut MIG down; MIG lays clean, fast, low-skill welds on prepared material. Where they overlap is exactly where the arguments start, and those arguments usually say more about the job than about the welder.

One difference beginners routinely underestimate is arc radiation. OSHA notes in 1926.353(d)(1) that inert-gas metal-arc welding produces ultraviolet radiation at intensities 5 to 30 times that produced during shielded metal arc welding. A helmet shade that suits stick work can be marginal under a MIG arc, and nearby workers need protection too.

What This Guide Covers

We will walk through how each process works internally, put them head-to-head on portability, tolerance, speed, cost, and cleanup, and then spell out the specific situations where each one wins, from why SMAW still dominates outdoor repair to clean shop fabrication. From there the article moves into a practical learning roadmap, machine settings and consumables, the safety rules both processes share, and a closing troubleshooting section with a decision checklist you can apply to any job. Along the way we will touch on where aluminum fits, since material choice often decides the process before anything else, as covered in aluminum MIG welding.

Read it end to end or jump to the section that matches your problem. Either way, you should finish knowing not which process is best in the abstract, but which one is best for the piece of metal in front of you.

How Stick Welding (SMAW) Works

Stick welding is formally called shielded metal arc welding (SMAW), and the name tells you most of what you need to know. You clamp a consumable, flux-coated rod into a holder, touch it to the work, and pull back an arc. The rod melts, the coating burns, and the metal freezes behind you into a bead. There is no gas bottle, no wire spool, and no feeder — just a box of electrodes and a power source. That simplicity is exactly why stick survived the arrival of MIG and still shows up on every construction site, pipeline spread, and farm in the country.

The Flux Coating Does Three Jobs at Once

The heart of the process is the coating on the rod. As the arc heats the electrode tip, the flux decomposes and does three things simultaneously. First, it vaporizes into a cloud of shielding gas that wraps around the molten pool and keeps atmospheric oxygen and nitrogen out. Second, the melt leaves a layer of slag that floats on top of the weld and solidifies into a brittle crust, protecting the hot metal as it cools. Third, it adds deoxidizers and alloying elements to the puddle so the deposited weld metal comes out sound.

Because the shielding is generated locally at the arc, the process tolerates conditions that wreck gas-shielded welding. Wind that blows away a MIG shielding envelope barely bothers a stick arc. A little rust, mill scale, or paint fumes off the plate and the flux chemistry still gets a usable bead. That field tolerance is the practical answer to why Advantages of Stick Welding: Why SMAW Still Wins is still a live argument decades after MIG became cheap.

Striking and Holding the Arc

There are two ways to start a stick arc. The scratch method is like striking a match: drag the electrode across the surface, then lift to a normal arc length. The tap method is a controlled stab and pull-back. Beginners usually start with scratching and graduate to tapping because it wastes less rod and leaves fewer spatter marks.

Once lit, arc length is everything. The ideal gap is roughly the diameter of the rod’s bare core wire — maybe an eighth of an inch for a 1/8-inch rod. Push the rod in too close and it sticks; pull it away and the arc becomes long, noisy, and unstable, letting air into the puddle. The coating also forces a steady hand: you are watching a rod shrink toward the plate while the slag chases the puddle behind it.

Decoding the Electrode: E6010, E6011, E6013, E7018

The American Welding Society publishes the classification system used across the industry, and the four-digit code is a specification, not a marketing number. AWS standard A5.1 defines covered carbon-steel electrodes this way:

• E — electrode.
• First two digits (60 or 70) — minimum tensile strength of the deposited weld in thousands of psi. E6018 means 60,000 psi; E7018 means 70,000 psi.
• Third digit (1) — welding position. A “1” means the rod is qualified for all-position work: flat, horizontal, vertical, and overhead. A “2” limits it to flat and horizontal.
• Fourth digit (8, 10, 13) — coating type and compatible current. An “8” denotes a low-hydrogen iron powder coating used with DC.

Rod	Character	Where it shines
E6010	Deep, forceful penetrating arc	Root passes, pipe, dirty or tight-joint work
E6011	Same family, runs on AC	Field repairs on farm and construction steel
E6013	Soft, quiet, easy arc	Sheet metal, beginners, clean-looking beads
E7018	Low hydrogen, iron powder, smooth	Structural steel, high-strength all-position welds

Cellulose rods like E6010 and E6011 dig hard into the base metal with a narrow, pointed arc. Rutile rods like E6013 lay down a wide, forgiving puddle with lighter penetration. Low-hydrogen rods such as E7018 give the strongest, cleanest welds and are the default for anything structural; a deeper dive into their handling is covered in our Alloy Steel Welding Electrodes: Selection, Use & Safety guide.

Polarity Decides How the Heat Behaves

Because the electrode is the consumable, the polarity setting controls where the heat goes. With DC electrode positive (DCEP), roughly two-thirds of the heat lands on the rod, giving fast deposition and deep penetration — the standard for E7018 and the strongest setting for most rods. With DC electrode negative (DCEN), more heat sits in the workpiece, which is what E6010 wants for its digging root-pass arc. Simple AC machines flip polarity sixty or a hundred and twenty times a second, which is why E6011 and E6013 are popular on old buzz boxes: they tolerate AC where a 6010 would stutter. Manufacturer charts from Miller Welds resources list the amperage and polarity ranges for each classification.

The Minimal Kit

A stick outfit is a power source, an electrode holder, a ground clamp, and two cables. No wire feeder, no gas cylinder, no liner to clog, no bottle to rent or refill. A small inverter stick machine under thirty pounds will run off a generator or a long extension lead on a hillside where a MIG rig would never leave the trailer. That is the whole reason stick remains the most portable arc process available, and the reason field crews still reach for it when the job is outside, overhead, on rusty plate, or far from a supply house. For the certification side of structural work, AWS D1.1 spells out which electrodes and positions are acceptable.

One extra note on position work: rods like E7018 are engineered to hold a puddle overhead and on a vertical-up climb, which is where a thinner, runnier weld pool would sag. Our All Position Welding Rod Guide: Types, Uses & Tips breaks down which coatings hold up in each orientation.

How MIG Welding (GMAW) Works

MIG welding is formally called gas metal arc welding, or GMAW, but the name undersells how straightforward the process feels once you pull the trigger. A spool of thin solid wire sits inside the machine, runs through a liner in the flexible gun lead, and exits through a copper contact tip. Squeezing the trigger does three things at once: it starts the arc, it drives rollers that push wire forward at a set speed, and it opens a solenoid valve that lets shielding gas flow around the weld pool. The wire becomes the filler metal, the arc melts it into the joint, and the gas keeps oxygen and nitrogen out of the molten metal.

Continuous Wire: The Productivity Advantage

Because the electrode feeds continuously, MIG eliminates the restarts built into stick welding. A stick welder burns through a 14-inch rod in a couple of minutes, then stops, tosses the stub, grabs a fresh electrode, and strikes up again. A MIG gun keeps going until the spool runs low or the weld is finished. That single difference is why fabrication shops, trailer builders, and automotive production lines standardize on MIG: in repetitive work, the meter counts pauses as much as it counts arc time.

It also makes MIG forgiving for beginners. There is no stub to fumble, no angle to adjust mid-weld as a rod shortens, and no slag to chip between passes. You point, squeeze, and move.

Shielding Gas Selection

The gas you choose changes the weld’s character more than most newcomers expect. For mild steel in the common short-circuit mode, a 75% argon / 25% CO₂ blend, usually sold as C25, is the everyday standard because it gives a smooth arc with modest spatter. Running 100% CO₂ costs less per cylinder and produces deeper penetration on thicker steel, but the arc is harsher and spatter increases noticeably. Pure argon is reserved for spray transfer on steel and is the standard gas for aluminum, where CO₂ would create a hard, brittle carbide layer instead of a clean weld. If gas shopping feels overwhelming, a good Airgas welding supplies guide breaks down cylinder types, mixes, and regulators.

For aluminum work specifically, shielding is only half the battle — surface oxide and oil have to come off first, which is why prep products covered in aluminum cleaner for welding matter so much, and why the full workflow is laid out in Aluminum MIG Welding: The Complete Practical Guide.

Wire Feed Speed and Voltage Work as a Pair

MIG machines have two main dials, and they are not independent in practice. Wire feed speed effectively controls amperage — more wire means more current is required to melt it — while voltage controls the length and force of the arc. Turning one up without the other produces either a stubbing, short-arc mess or a wandering, overly fluid puddle. Manufacturers publish recommended pairing charts, and the Miller Welds resource library is a solid starting point for typical settings by material thickness.

Transfer Modes: How the Metal Crosses the Gap

Mode	What Happens	Best Use
Short-circuit	Wire touches the work, shorts, melts off, repeats dozens of times per second	Thin sheet metal, out-of-position work, low heat input
Globular	Large droplets transfer irregularly; messy middle ground	Thicker steel at moderate settings, less common by choice
Spray transfer	A fine stream of droplets sprays across the arc continuously	Thick plate, flat and horizontal positions, aluminum with argon

Short-circuit transfer is what most home and light-fabrication machines run by default, and it is the reason MIG handles thin steel without blowing holes. Bump the voltage and wire speed high enough and the arc transitions into spray, which deposits metal fast and penetrates deeply but requires the joint to be flat and the material thick enough to take the heat.

Push or Pull, and Gun Upkeep

Gun angle matters. For MIG on steel, most welders push the gun (torch pointing in the direction of travel) on clean metal for better gas coverage and a flatter bead, and pull or drag when welding dirty or vertical surfaces so the arc digs into the joint ahead of the puddle. Consistent contact-tip-to-work distance matters more than either angle; holding the gun too far back makes the arc wander, while jamming it into the puddle causes burn-through.

The consumables are wear items. The contact tip erodes and collects spatter, the gas nozzle clogs, and the liner dusts up and kinks over time. Poor wire feed caused by a dirty or kinked liner is one of the most common MIG problems there is, showing up as an erratic arc and stuttering wire — symptoms often misdiagnosed as a machine fault. Replace the tip and liner on a schedule rather than waiting for failure.

The trade-off is clear. Continuous wire makes MIG fast, clean, and easy to pick up, but the external gas envelope makes it sensitive in ways stick welding simply is not. A gust of wind, a greasy plate, or a leaking hose shows up immediately as porosity, where a flux-coated stick electrode would shrug the same conditions off. That sensitivity is why process choice follows the job site rather than brand loyalty.

Stick vs MIG: A Head-to-Head Comparison

By now you know how each process works on paper. Let’s put them side by side under real job conditions. The comparison that matters is not which one lays the prettiest stack of dimes on clean mild steel in a climate-controlled shop. It is which one finishes the repair when the wind is up, the base metal is crusted with rust, and the power source is a hundred feet away.

The short version: MIG wins on speed, ease, and cleanliness inside a shop. Stick wins on portability, tolerance, and versatility almost everywhere else. Neither is a consolation prize, and neither is universally better.

Portability: What You Can Actually Carry

A basic stick setup is a power source, an electrode holder, a ground clamp, and a canvas bag of rods. There is no wire feeder, no gas bottle to strap down to a cart, no regulator. You can carry a 250-amp stick machine up a ladder, into a crawl space, or across a muddy field without a second thought. MIG adds a feeder, a spool of wire, a shielding gas bottle, a regulator, and a gun with replaceable nozzles and contact tips. That is a cart, not a shoulder carry. This is the whole reason stick outlived the MIG revolution: when the welder has to walk to the work, or the work keeps moving, stick wins by default.

Wind, Rust, and Paint: Tolerance to Real Conditions

This is the farm-yard test. MIG’s shielding gas is a gentle stream of argon and CO₂ leaving a nozzle a few inches from the arc. A 15 to 20 mile-per-hour gust blows that envelope straight off the puddle, and you get porosity, a sponge-like weld full of trapped gas pockets. Stick electrodes carry their own shielding inside the flux coating. The flux burns, releases gas directly over the arc, and leaves a slag blanket that protects the hot metal as it solidifies. Because that shielding is generated at the arc itself, it is far harder to blow away.

The same chemistry handles contamination. Electrodes such as E6010 and E6011 are routinely used for root passes on pipe and for welding dirty, painted, or rusty metal where MIG wire would be contaminated. The forceful arc of E6010 digs through mill scale, paint, and light rust and burns the impurities out of the puddle. Wire fed into that same surface simply stirs the oxide in, giving you porosity and inclusions.

Speed, Deposition, and the Learning Curve

MIG is far easier to pick up. Point the gun, pull the trigger, and wire feeds continuously, with no arc-striking ritual and no electrode burning down in your hand. A beginner can lay a serviceable bead in an afternoon. Stick demands that you learn to strike and hold an arc, manage a consumable that shortens by the inch, and stop every few inches to change rods. Expect weeks rather than hours before your beads run consistent.

Raw deposition tells the opposite story. In flat and horizontal work on heavier material, a MIG machine running spray transfer puts metal down faster per hour than most stick electrodes in the same class. For production fabrication where the identical joint repeats a hundred times, MIG wins outright. On a single field repair, that advantage disappears into setup time.

Cleanup: Slag vs Spatter

This is where the two processes trade places. MIG produces far less slag, so cleanup is mostly wire brushing and knocking off light spatter. With stick, every bead is buried under a hard slag shell that must be chipped away with a hammer and cleaned with a brush before you can even see the weld. Multi-pass work means chipping, brushing, and inspecting over and over. It is the most tedious part of stick welding, and nobody enjoys it.

The Comparison at a Glance

Factor	Stick (SMAW)	MIG (GMAW)
Portability	Excellent, no gas bottle	Cart, bottle, feeder required
Wind tolerance	Strong, flux shields at the arc	Poor above roughly 15 mph
Dirty or rusty metal	Handles it with E6010/E6011	Needs clean base metal
Learning curve	Steep, weeks to consistency	Gentle, beads in an afternoon
Deposition rate	Good on thick plate	Higher in flat and horizontal spray
Cleanup	Chipping and brushing each pass	Wire brush and spatter removal
Out-of-position	Excellent with all-position rods	Good in short-circuit mode
Material range	Steel, stainless, cast iron	Steel, stainless, aluminum with argon
Entry cost	Lower	Higher, cheaper per pound long term
Fume and noise	Higher fume, moderate noise	Lower fume, quieter arc

Cost, Noise, and Fumes

Entry cost favors stick, since a solid AC/DC stick machine costs less than a MIG power source plus feeder plus bottle plus regulator. Over the long haul, though, wire is often cheaper per pound deposited, and MIG’s deposition efficiency is higher with less waste and less slag. Gas is the recurring cost that stick never incurs.

Fumes and noise go slightly to MIG, but only slightly. Both processes produce welding fume, and both are regulated identically. OSHA’s construction standard 1926.353 requires ventilation or respiratory protection when welding in confined spaces and for metals of toxic significance such as zinc-, lead-, cadmium-, chromium-, and beryllium-bearing metals, and those requirements apply to both processes. Weld galvanized steel with stick and you breathe zinc oxide fume; weld it with MIG and the same hazard sits in a different plume. For electrode selection across alloy families, see our guide to alloy steel welding electrodes, and for position work, our all position welding rod guide. The broader picture of both processes is covered in why SMAW still wins in the field.

When Stick Welding Is the Right Choice

Every experienced welder keeps a stick machine around for the same reason every farmer keeps a shovel in the truck bed: some jobs just demand the simplest, toughest tool. Stick welding (SMAW) isn’t the flashy choice, but in a long list of real-world situations it’s the correct one. Here’s where it wins and why.

Outdoor and Windy Field Repairs

This is stick’s home turf. The flux coating on a stick electrode burns to produce its own shielding gas and a layer of slag right at the arc, so drafts can’t blow the protection away. MIG’s shielding gas is a gentle stream of argon and CO₂ that a stiff breeze can disperse in seconds, leading to porosity and a rejected weld. A stick lead, by contrast, will run happily in wind, light rain, and dust. That’s why field repair on farms, fences, and equipment almost always defaults to stick. We covered the broader case in Advantages of Stick Welding: Why SMAW Still Wins.

Construction and Structural Steel

On structural jobs, code compliance drives the process. AWS D1.1, the Structural Welding Code–Steel, governs qualified welding procedures for structural steel, and SMAW remains one of the most commonly qualified processes under it. Countless prequalified and procedure-qualified WPSs on jobsites are built around stick electrodes, particularly E7018 low-hydrogen rods, because inspectors, welders, and procedures all speak that language. For work on buildings, bridges, and heavy steel frames, stick is often the path of least resistance through qualification.

Pipeline, Boiler, and Pressure Work

Pipeline welders run root passes with deep-penetration electrodes like E6010 in all-weather, all-position conditions, then cap with low-hydrogen fill. Boiler and shop fabrication work leans the same way: a small power source, a pouch of rods, and no gas bottle to drag around. Boiler specialists like those profiled in Alamo Welding & Boiler Works: Services & Boiler Expertise demonstrate how deep this tradition runs in maintenance-heavy industries.

Rusty, Painted, and Galvanized Steel

While you should always clean what you can, stick tolerates imperfect prep far better than MIG. Certain electrodes are designed to burn through rust and mill scale while the flux chemistry handles the contamination. E6010 and E6011 are the go-to rods here:

• E6010 — deep, forceful penetration on DC electrode positive (DCEP); the classic root-pass and dirty-metal rod.
• E6011 — the AC-compatible sibling of E6010, ideal when your machine has no polarity switch or you’re running on a generator.
• E6013 — softer arc, smooth bead, great on sheet metal and general-purpose repairs where penetration isn’t critical.
• E7018 — low-hydrogen, high-strength, clean structural welds when the metal is properly prepared.

Galvanized material is another stick-friendly case. The flux chemistry copes better with zinc contamination than an open MIG arc does, though you should still grind off the galvanizing at the joint. For electrode fundamentals, see our Alloy Steel Welding Electrodes: Selection, Use & Safety.

Heavy Thick Plate

Multi-pass welding on thick section is stick bread and butter. You can build a large fillet in successive passes with a cheap, rugged electrode, and there’s no wire spool to run dry at the worst moment. MIG deposits metal faster, but on heavy plate in a shop that already has gas service the two processes trade blows; in the field, stick usually wins outright.

Overhead and Vertical Position

SMAW rods are engineered for positional work. E7018 and E6013 are excellent overhead and vertical-up electrodes, with flux coatings that hold a controlled, fast-freezing puddle against gravity. Our All Position Welding Rod Guide: Types, Uses & Tips breaks down how to pick and run them. Position welding is one of the strongest arguments for learning stick: once you can run E7018 vertical-up, most positional work feels manageable.

Minimal Equipment and Traveling Power

A stick welder is a power source, an electrode holder, a ground clamp, and a pouch of rods. No gas cylinder to strap down, no wire feeder to babysit, no liner to clog. That package fits in a truck bed and keeps working on jobsites with no shop air, no shielding gas supply, and dirty power from a generator. It’s also the cheapest way to start welding credibly, which is why so many fabrication careers begin on a stick machine.

The short version: if the job is outdoors, dirty, overhead, on thick steel, far from a shop, or under a code procedure, stick is probably the right call. When the metal is clean, thin, or the work is repetitive, MIG starts to look better — which is exactly the next question to settle.

When MIG Welding Is the Right Choice

Stick welding has its fortress: open fields, structural steel, dirty metal. MIG (GMAW) has its own territory where nothing else competes. Once you know where MIG wins, you stop asking which process is better and start matching the process to the job in front of you.

Sheet Metal and Thin Material

This is MIG’s headline advantage. Short-circuit transfer feeds the wire so it touches the workpiece dozens of times per second, each touch depositing a tiny amount of metal before the arc re-strikes. The result is low, controlled heat input that lets you weld 20-gauge sheet steel without blowing holes through it.

Stick welding thin sheet is possible, but it demands more heat control and operator skill. Your minimum practical amperage on a stick machine is limited by the smallest electrode you can run, and an arc even slightly too long burns a hole in seconds. With MIG you dial the voltage and wire feed speed down, run 0.023–0.030 inch wire, and the process largely manages the heat for you.

Production Fabrication and Repetitive Welds

In a shop where the same joint gets welded two hundred times a day, MIG’s continuous wire feed translates straight into money. No rod changes, no stub ends, no slag to chip. A gun with a full spool just keeps running, and the deposition rate — especially in spray transfer on thicker steel — runs well ahead of stick.

Spray transfer uses higher voltage and argon-rich gas blends to project a stream of fine droplets across the arc. In flat position on plate it lays down metal fast, penetrates deeply, and leaves a smooth bead with minimal spatter when the settings are right. That combination is why MIG dominates automotive fabrication, trailer manufacturing, enclosures, and nearly every clean, indoor production environment.

The Best First Process for Beginners

Ask most welding instructors and they’ll tell you the same thing: MIG is the fastest path to a usable bead. You pull the trigger, the wire feeds, the arc starts — no arc-striking technique to master, no electrode freezing to the plate. A first-time welder can lay down something resembling a decent weld within minutes.

That’s why schools typically introduce MIG early, alongside stick. The trade-off: MIG’s forgiving nature can hide sloppy habits. Travel speed, work angle, and stickout matter as much as they do in stick welding — you just get more chances to practice per hour.

Aluminum Welding

To MIG weld aluminum you need 100% argon, a spotless surface, and a spool gun or push-pull feeder. Aluminum wire is soft, so feeding several feet through a standard liner invites birdnesting; mounting the spool on the gun prevents it. Our Aluminum MIG Welding: The Complete Practical Guide covers the process, and Aluminum Cleaner for Welding: How to Prep Aluminum Right covers the cleaning it demands before the arc strikes.

MIG on aluminum opens the door to boat hulls and marine fabrications, alloy wheel repair, and countless lightweight fabrication projects.

Mild Steel With C25 Gas: The Workhorse Combination

For ordinary mild steel, 75% argon / 25% CO₂ (called C25) with ER70S-6 wire is the standard setup and handles everything from brackets to plate indoors. C25 arcs cleaner with less spatter than 100% CO₂ while still giving good penetration.

Automation and Robotics

MIG is the easiest arc process to automate: wire feed speed and travel speed are electrically controlled, so they map cleanly onto robotic arms and mechanized carriages. Laser systems like Alpha laser welding serve the highest-precision end, but MIG remains the backbone of automated fabrication in most heavy industries.

Where MIG Falls Short

MIG is highly sensitive to wind — even a moderate breeze blows away the shielding gas and causes porosity, exactly what stick handles with ease. Hoses leak, regulators freeze in humid weather, and outdoor work means a windscreen or a switch to flux-core wire. And unlike stick, MIG wants clean metal: mill scale, oil, and rust all degrade the weld.

The Short Version

Choose MIG when you’re indoors, the metal is clean, the material is thin to medium, the joints repeat, or you’re working with aluminum. Choose stick when the wind blows, the metal is dirty, or you’re up a structure. The welder who owns both — and knows when to reach for each — is the one who gets called back.

Learning Both: Skill Building and Practice Routines

Ask a dozen welding instructors how a beginner should start and you will hear a familiar answer: learn to run a stick bead before you touch anything else. That advice is not gatekeeping. Stick welding forces you to manage arc length, angle, travel speed and rod consumption all at the same time, with no wire feeder to hide behind. Once those habits are locked in, MIG feels almost easy by comparison. What follows is a routine you can actually follow, whether you are practicing in a garage or working through a structured class.

Why Most Instructors Start You on Stick

With MIG, you pull a trigger and metal comes out. That convenience is exactly why beginners develop bad habits quickly: they hold the gun too far back, move too fast, and never learn to judge the puddle because the machine keeps feeding them. Stick welding removes that safety net. If your arc length drifts, the weld tells you immediately — the electrode either burns too fast and blows porosity into the bead, or it freezes to the plate and stalls. That instant feedback builds the fundamental muscle memory that carries over to every other process, which is one of the big advantages of stick welding as a training tool.

The first rule to internalize: your arc length should be roughly equal to the diameter of the electrode. Running a 1/8-inch rod? Keep the tip about 1/8 inch from the puddle. A long arc does two destructive things at once — it lets atmospheric nitrogen and oxygen contaminate the weld, causing porosity, and it scatters spatter across the plate. An arc that is too short risks sticking the electrode, the single most common frustration for first-day students.

The Strike-and-Lift Technique

Striking an arc is a lot like lighting a match. Two methods work: scratch start, where you drag the rod across the plate as if striking a match and then lift to length, and tap start, where you tap the rod down and lift immediately. Beginners tend to freeze once the arc catches and press the rod into the puddle. Practice the lift deliberately: strike, establish a comfortable arc gap, hold it steady for two seconds, then start moving. Once the electrode sticks, break it side to side quickly or let go of the holder and re-strike — never yank a stuck rod while the machine is live with gloves soaked through.

Alongside arc length, three variables decide your result: travel speed, work angle and electrode angle. Travel too fast and the bead sits high and narrow with poor fusion; travel too slow and you wash the plate out or pile up excess metal. Keep a steady drag angle and let the puddle do the work rather than sawing back and forth.

Moving to MIG: Stick-Out and Gun Angle

Once you can run a consistent stick bead, MIG translation is quick. The two numbers worth memorizing for short-circuit transfer on mild steel are about 1 inch of wire stick-out from the contact tip to the work, and a drag angle of roughly 5 to 15 degrees, pointing the gun back in the direction you are travelling. Too much stick-out reduces amperage at the arc and invites spatter; too little and the nozzle overheats. Push angle works for spray transfer on thicker material, but for a new MIG operator, drag is the forgiving choice. Manufacturer settings charts that pair wire feed speed with voltage by material thickness are worth keeping next to the machine, and the Miller Welds resource library publishes exactly that.

Reading a Finished Bead

Do not just look at whether the plates are joined. Judge the bead itself:

• Width and profile: a uniform width from start to finish means consistent travel speed and arc length. Caters and craters mean you stopped or hesitated.
• Toe line: the edges should blend smoothly into the plate. A stepped, roped toe signals travel that is too fast or too slow.
• Surface: gray and matte is normal; a shiny, iced-sugar surface often means contamination or too cold a setting.
• Undercut and overlap: undercut is a groove melted into the base metal along the toe, a sign of excessive amperage or a wrong work angle. Overlap (cold lap) means not enough heat or too much metal.

A Progressive Practice Sequence

1. Beads on plate: lay stringers on 3/16-inch or 1/4-inch mild steel until width and ripple spacing are repeatable in all passes.
2. Fillet (T) joints: two plates at 90 degrees. Learn to split the heat between both members rather than pointing at one.
3. Lap joints: here the top plate edge matters most; keep the puddle tied to both surfaces without rolling over the edge.
4. Vertical-up: the hardest standard position for beginners. The puddle fights gravity, so slow down and let each ripple solidify before advancing. An all position welding rod guide helps match electrodes to this stage.
5. Out-of-position work: overhead on plate, then pipe if that is your target trade.

How the Skills Transfer

Electrode angle, puddle observation, travel speed and the discipline of watching the joint rather than your hand all carry directly from stick to MIG and back. What changes is the mental load: with MIG, consumable feeding and gas coverage become new variables. That is why many programs recommend stick first, then MIG, then flux-core, then aluminum — where dedicated cleaning and gas discipline dominate, as our aluminum MIG welding guide explains.

Formal credentials come later but matter for employment. The American Welding Society offers the Certified Welding Inspector (CWI) designation and a Certified Welder Program built on performance qualification tests written against codes such as AWS D1.1. Test coupons are welded to procedure specifications, so the same fundamentals you drilled on plate — arc length, angle, speed, cleanliness — are exactly what gets graded. A welder fluent in both processes, and comfortable proving it, is simply more employable than one who only ever chased a wire-feed trigger.

Settings, Materials, and Consumables Explained

Choosing the process is only half the job. The difference between a weld that passes and one you grind out on Monday comes down to three numbers: amperage on the stick machine, voltage and wire feed speed on the MIG, and the thickness underneath both.

Stick Amperage vs. Electrode Diameter

A stick machine is refreshingly simple: set amperage, and nearly everything else follows. The general rule for mild steel is roughly one amp per thousandth of inch of electrode diameter, adjusted for position, joint geometry, and plate temperature.

Electrode diameter	Typical range (flat, mild steel)	Common use
3/32 in	60–90 A	Thin sheet, root passes
1/8 in	110–130 A	General purpose, brackets, repairs
5/32 in	130–170 A	Heavier plate, fillet welds
3/16 in	180–240 A	Thick structural members

A 1/8-inch E7018 at 110–130 amps is where most shops live. Drop amperage about 10 to 15 percent overhead, then fine-tune on vertical runs. If the rod keeps sticking, you are usually cold; if the arc sounds harsh and the bead is crowned and narrow, you are hot. For position-specific rod choices, see our All Position Welding Rod Guide.

Pairing MIG Voltage and Wire Feed Speed

MIG has two dials that argue with each other: wire feed speed sets amperage, voltage sets the arc profile. Move one without the other and the wire either stabs the puddle or balls up at the tip. Material thickness drives the pairing, and so does wire diameter.

Wire diameter	Best suited to	Typical setting direction
.023–.030 in	Thin sheet, sheet-metal fabrication	Lower voltage, moderate feed
.030 in	The all-around mild steel choice	Moderate voltage and feed
.030–.045 in	Heavy plate, structural fabrication	Higher voltage, faster feed

Thicker wire carries more current and deposits faster, so heavy plate pushes you toward .035 or .045 inch wire with matching voltage and feed. Gas matters too: 100 percent CO2 buys deeper penetration with more spatter, while a C25 blend (75 percent argon, 25 percent CO2) runs a quieter, cleaner short-circuit arc on mild steel. Starting points by thickness live in the Miller Welds resource library; treat them as a baseline and adjust on a coupon, not on hope.

Polarity: DCEN vs. DCEP

On stick, DCEP (electrode positive, or reverse polarity) is the workhorse: E6010 and E7018 run DCEP, E7018 also carries an AC listing, and E6011 and E6013 come in AC too. DCEP drives heat into the work for deeper penetration. DCEN (straight polarity) puts heat into the rod, so it melts off faster with shallower penetration, which suits thin sheet or surfacing. The electrode box and the Alloy Steel Welding Electrodes data sheets list accepted polarities; follow those over remembered rules of thumb.

On MIG, DCEP (wire positive) is standard for solid wire on steel, stainless, and aluminum. Self-shielded flux-cored wire is the exception and runs DCEN.

Material-Specific Notes

• Stainless steel: Keep heat input low to avoid warping and tinting. Use a tri-mix or argon/CO2 blend on short-circuit MIG, smaller wire, and dedicated stainless consumables so carbon steel contamination does not ruin corrosion resistance.
• Cast iron: Nickel electrodes, generous preheat, slow cooling, often a butter layer. Nickel rods are expensive, so plan the joint before you strike an arc.
• Galvanized steel: The zinc coating burns off as zinc oxide fume. OSHA 1926.353(c)(1)(i) requires mechanical ventilation when welding zinc-bearing or zinc-coated metals in enclosed spaces. Grind the coating back from the weld zone where practical, and wear respiratory protection in the open.
• Aluminum: 100 percent argon, spotless base metal, and usually a spool gun or push-pull system to feed soft wire reliably. Start with a dedicated Aluminum Cleaner for Welding routine, and see our Aluminum MIG Welding: The Complete Practical Guide for transfer-mode and gun-angle detail.

Consumable Storage and Written Procedures

Low-hydrogen electrodes can quietly ruin a sound-looking weld. E7018 coatings absorb moisture from shop air, putting hydrogen into the puddle and risking cracks after the weld cools. This is why rod ovens held around 250–300°F (120–150°C) are standard shop equipment, why manufacturers publish a maximum open-air exposure time before rods must go back in the oven, and why only a handful of rods live in a field quiver rather than the whole box. Never bake rods you cannot vouch for, and never dry wet rods on a hot plate.

On structural work, settings are not a personal preference; codes govern them. The AWS D1.1 Structural Welding Code sets base metal groupings, filler classifications, preheat, and the written procedure specifications inspectors work from. For certified or load-bearing welds, qualify the procedure first, keep the paperwork with the job, and buy from a supplier who can trace the batch, where an Airgas Welding Supplies-type distributor earns its keep.

Safety, Fumes, and Health — The Rules Both Processes Share

Welders sometimes treat process choice as a safety decision: stick is “dirty but manageable,” MIG is “clean so it must be safer.” Neither framing holds up. Stick and MIG expose you to the same categories of hazard — shock, radiation, fumes, fire — and the controls that keep you healthy are largely identical. What changes is the dose, the location, and how quickly a hazard appears.

Personal Protective Equipment: The Non-Negotiable Layer

Every arc welding session starts with the same kit, regardless of which machine is running:

• Helmet and lens. An auto-darkening helmet set around shade 10 to 12 for most stick and MIG work, switching to 11–13 for high-amperage stick. Fixed-lens users typically work under a shade 10 filter with a pass-through cover plate.
• Clothing. Flame-resistant jacket and trousers, no cuffs or holsters where sparks can collect, plus a cap or hood to keep spatter out of your hair.
• Gloves. Heavier stick gloves for electrode heat and slag; thinner MIG gloves for gun dexterity — but never bare hands or light shop gloves.
• Boots and screens. Leather boots with laces covered, and welding curtains or screens so passersby are not flashed.

Ear protection and cut-resistant sleeves matter more than people expect. MIG spatter travels farther than beginners think, and stick slag pops off hot.

Electric Shock: The Hazard That Does Not Care Which Process You Chose

Both processes put live voltage at the workpiece. The risk climbs sharply in damp locations, on wet concrete, when you touch the electrode or gun with sweaty hands, or inside a confined space where your body can bridge ground. Inspect leads, ground clamps, and gun liners before use, keep dry footing, and never weld in a wet or restricted space without written procedures and an attendant. This is one area where a compact stick setup can actually be riskier than a MIG cart simply because field repairs often happen in exactly those bad conditions.

Arc Radiation: MIG Runs Hotter on the Eyes and Skin

The arc emits intense ultraviolet and infrared radiation that causes arc burn (the welding equivalent of a sunburn) and long-term eye damage. Gas metal arc welding produces higher UV output than shielded metal arc welding, which means nearby unprotected skin and eyes take more of a hit — a real concern for helpers, fitters, and anyone walking past an open MIG booth. Screens, distance, and a correctly shaded lens protect both the welder and everyone else in the shop.

Welding Fumes and Gases: Control the Hierarchy, Not Just the Mask

Stick fumes come from the flux coating and base metal; MIG fumes come from the wire, base metal, and shielding gas decomposition. Both contain manganese, hexavalent chromium (on stainless), and metal oxides. The sensible approach follows a hierarchy: substitute a lower-hazard consumable where possible, then ventilate, then add respiratory protection.

OSHA’s fact sheet 3647, “Controlling Hazardous Fume and Gases during Welding”, lays out local exhaust ventilation, booth design, and respirator practice for welding operations. For manganese specifically:

Authority	Manganese limit
NIOSH recommended exposure limit	1 mg/m³ as an 8-hour TWA; 3 mg/m³ short-term
OSHA PEL	5 mg/m³ ceiling
ACGIH TLV (respirable fraction)	0.02 mg/m³

The gap between these numbers is the point: NIOSH’s welding fume guidance (CDC/NIOSH welding program) reflects health evidence that OSHA’s decades-old ceiling does not. Ventilate first, fit-test respirators second, and do not assume an open shop door is control.

Fire, Hot Work, and Confined Spaces

Welding causes thousands of structure fires a year, most from sparks landing in combustibles. Clear a 35-foot radius (or use fire-resistant blankets), keep an extinguisher rated for the materials present, and watch the far side of partitions — including inside walls and floors. OSHA 1926.352 governs fire prevention during welding and cutting, while 1926.353 covers ventilation and protection. A rule worth memorizing: 1926.353(a)(6) prohibits using oxygen for ventilation, comfort cooling, or cleaning clothing and work areas. Blowing oxygen across a shop to freshen the air is a fire and explosion risk, not a convenience.

Confined spaces require permits, atmospheric monitoring, forced ventilation, an attendant outside, and a rescue plan before the arc is struck. Full requirements sit under OSHA’s welding, cutting, and brazing standard.

The verdict on safety is simple: neither stick welding nor MIG buys you a lighter obligation. Choose the process for the job’s conditions, then apply the full set of controls to it.

Common Mistakes, Troubleshooting, and the Final Verdict

Every welder remembers their first week of defects. The rod fuses itself to the plate, the MIG gun spits porosity across a clean joint, and the bead that looked perfect under the helmet comes out with a groove burned into one edge. None of that means the process is wrong for the job. In almost every case the fix is one variable away: amperage, arc length, angle, gas flow, or cleanliness. Here is how to read the most common failures and correct them on the next pass.

Stick Welding Mistakes and Their Fixes

• The electrode sticks. A rod that grabs the plate and glows red instead of holding an arc is usually running too cold for the diameter, or the arc is being held too close after the strike. Nudge the amperage up slightly, scratch or tap decisively, then hold an arc length roughly equal to the electrode core diameter. Damp or coated-over rod tips cause the same problem, so snap the flux back before striking.
• Porosity in the finished bead. Shielding problems are the usual culprit. A long arc lets atmosphere contaminate the puddle, and damp low-hydrogen rods release hydrogen straight into the weld. Keep the arc tight, store E7010-class rods dry, and re-bake low-hydrogen electrodes per the manufacturer’s instructions. Rust, oil, and paint on the base metal add their own contribution.
• Undercut. A groove melted into the base metal alongside the bead, and one of the most common visual inspection rejects in structural work. It comes from too much amperage, too fast a travel speed, or a work angle that pushes the arc into the sidewall. Drop the heat a little, slow down, and let the puddle wash back into the joint. For acceptance criteria on structural steel, the governing reference is the AWS D1.1 Structural Welding Code.
• Slag inclusions. Chipping slag thoroughly between passes, especially on the all-position welding rod work you will do in vertical and overhead joints, prevents trapped slag from becoming a reject.

MIG Welding Mistakes and Their Fixes

• Burn-through on thin steel. Excessive voltage or wire feed speed on sheet metal blows straight through. Drop both together, slow the travel slightly, and use short-circuit transfer rather than pushing into spray.
• Birdnesting. Tangled wire in the drive rolls is rarely the wire’s fault. The usual causes are a kinked or contaminated liner, a burnt or partially melted contact tip, or drive roll tension set too loose or too tight. Clean the liner, replace the tip, re-tension the rolls, and the feed smooths out immediately.
• Cold lap (lack of fusion). The bead sits on top of the metal without biting in. A push angle that is too shallow, excessive stick-out, travel that is too fast, or an oily plate all produce it. Aim the arc at the leading edge of the puddle and verify the joint is clean before striking.
• Porosity. Shielding failures come from gas leaks at the fittings, a blocked or oversized nozzle, an empty cylinder, or a draft. Check the regulator, clear the nozzle, and shield the work from wind; even a light breeze can strip coverage from a CO2-rich mixture. The same gun and gas discipline applies to aluminum, as covered in our aluminum MIG welding guide.

Basic Equipment Maintenance

Both machines fail the same way when neglected. Keep stick leads dry and tight, inspect the electrode holder and ground clamp for heat damage, and store low-hydrogen rods in a heated rod oven when codes require it. For MIG, replace contact tips on schedule, keep the liner clean, check gas connections with soapy water, and purge moisture from regulators. Wire that has rusted on an open spool will put porosity in every weld you run. A reliable source for welding gas, tips, liners, and other consumables is worth establishing early, because a five-dollar tip prevents a five-hour troubleshooting session.

The Verdict: A Decision Checklist

Neither process wins on brand loyalty. Answer these questions about the job in front of you:

Job condition	Lean stick (SMAW)	Lean MIG (GMAW)
Weather and location	Outdoors, wind, field repair	Shop, controlled environment
Base metal condition	Rusty, galvanized, dirty plate	Clean, mill-free, prepped material
Thickness	Heavy plate and structural steel	Sheet and light-gauge fabrication
Volume and speed	One-off repairs, patch-ups	Repetitive production welds
Position	Overhead, vertical, out-of-position	Flat and horizontal runs
Learning curve	Harder first, builds fundamentals	Faster first beads, easier to start
Equipment	Simple, portable, few consumables	More setup, gas, and gun upkeep

The broader case for keeping the stick leads on the truck is summarized in why SMAW still wins in tough conditions, and manufacturer troubleshooting charts such as those at Miller Welds resources are handy for confirming parameter ranges before you blame the machine.

Conclusion: Learn Both

The welder who can only run MIG is limited to the shop floor; the welder who can only run stick leaves the production work to someone else. Employers interview for exactly that overlap. Stick builds arc discipline, puddle control, and an understanding of heat that transfers to every other process, while MIG teaches feedability, gun handling, and speed under production pressure. Start with whichever machine is in front of you, drill the fundamentals above until your defects become diagnosable, then deliberately learn the other one. A welder comfortable in both is more employable, more capable, and far more useful when the conditions change on a Saturday morning.

Frequently Asked Questions

What is the main difference between stick and MIG welding?

Stick welding (SMAW) uses a consumable flux-coated electrode held in a clamp, and the flux provides the shielding. MIG welding (GMAW) feeds a continuous bare wire through a gun while an external shielding gas protects the weld pool. Stick is more portable and tolerant of dirt and wind; MIG is faster and easier to learn.

Is stick welding harder to learn than MIG?

Yes, most beginners find stick welding harder because you control arc length by hand, stop to change electrodes, and manage slag. MIG’s continuous wire feed is more forgiving. Many instructors recommend starting with MIG for quick confidence, then learning stick for fundamentals and versatility.

Can stick and MIG weld the same metals and thicknesses?

Both handle mild steel across a wide thickness range. Stick also performs well on dirty, rusty, or coated metal and in outdoor conditions. MIG covers thin sheet more easily and, with 100% argon and proper equipment, welds aluminum more conveniently than most stick processes.

Which is better for outdoor welding and why?

Stick is generally better outdoors because the flux coating shields the arc from wind, while MIG’s shielding gas can be blown away, causing porosity. If you must weld outside with MIG, you need wind screens and a sheltered area to maintain gas coverage.

Is a MIG weld weaker than a stick weld?

No. When both are performed correctly with proper parameter selection and suitable filler metal, both produce welds that meet the same code requirements. Weld quality depends on technique, joint preparation, and procedure control — not the process name. AWS D1.1 qualifies procedures for both.

What safety equipment do stick and MIG welding require?

Both require a welding helmet with an appropriate filter shade, flame-resistant jacket and pants, leather gloves, and sturdy footwear. Add ventilation or respiratory protection where fumes accumulate, and follow fire prevention rules — OSHA requires eye protection and controls for fumes, gases, and arc radiation in both processes.

Why does MIG welding make more ultraviolet light than stick welding?

OSHA notes that inert-gas metal-arc welding produces UV radiation at intensities 5 to 30 times that of shielded metal-arc welding. That means bystanders near a MIG arc need stronger screening and eye protection, because the arc can flash-burn skin and eyes more quickly.

Do stick and MIG welding produce dangerous fumes?

Yes, both produce fumes containing metal particles, and welding fumes commonly contain manganese. NIOSH recommends an 8-hour limit of 1 mg/m³ for manganese and documents neurological concerns with chronic exposure. Ventilation, respirators where required, and confined-space procedures reduce exposure for both processes.

Which process should a complete beginner learn first?

MIG is usually the best first process because the machine settings are simpler and the arc starts easily. Once you understand puddle control and travel speed, stick welding builds habits — arc length discipline, body position, restart technique — that make you better at every process you learn afterward.

Can one machine do both stick and MIG welding?

Many modern multi-process welders can run stick (SMAW), MIG (GMAW), and often TIG from a single power source. You still need the stick leads or MIG gun, gas bottle, and wire feeder as applicable, but a multi-process unit is a practical choice for a home shop that wants both capabilities.