Stick Welding Sticking: Why Your Electrode Freezes and How to Fix It Fast
Stick welding sticking? Learn why rods freeze to the plate, the 7 real causes, and proven fixes for…
READ ARTICLE →My neighbor’s old AC buzz box had three settings on the dial, one box of rods with faded labels, and a scrap pile of failed beads. The day he finally taped a laminated stick welding chart to the side of the machine, his welds went from bird droppings to something a pipeline welder would at least nod at. That’s the real power of a stick chart: it compresses decades of shop knowledge into a few columns of numbers, and it gives your hands something to aim for on every pass.
Almost every stick welder has a moment where they stare at a bead and realize they have no idea if it’s too hot or too cold. It usually happens in a hurry, with a scrap of metal and a machine that leaves little room for guesswork. That’s when the chart comes out. Whether it’s taped to the side of a machine, laminated in a shop, printed in an electrode catalog, or pulled up on a phone for a field repair, a stick welding chart is simply a set of reference tables to work from before you strike the first arc.
Most charts consolidate a few key pieces of information to keep a job moving. These are the columns you’ll run into time and time again:
These values aren’t arbitrary. They form the foundation for a written pipe welding procedure, and they feed directly into a weld procedure specification (WPS). The standards that back those documents are published by organizations such as AWS and ASME.
SMAW, or shielded metal arc welding, is one of the oldest and most widely used arc processes. It dominates construction, pipeline work, structural steel, and repair jobs where wind, draft, or dirty metal can quietly defeat a MIG arc. The process runs on a consumable flux-coated electrode: the burning flux creates both a shielding gas around the puddle and a slag layer that sits on top of the cooling weld until it is chipped off. Arc voltage during welding typically sits around 20–30 volts, while the open-circuit voltage on the machine before the arc strikes is usually 50–80 volts.
Quick Note: A stick chart is a starting point, not a verdict. The same rod on the same machine can need plus or minus 20 amps depending on joint fit-up, plate temperature, cable length, and electrode brand. Read the puddle, not just the paper.
Before using any chart, it’s worth knowing the terms that show up across them. The following cover the essentials:
A good chart saves time, but it will never account for every variable on the job. Poor fit-up can steal penetration, long leads can drop amperage, cold steel behaves differently than preheated plate, and even a brand swap can shift the sweet spot. For that reason, the chart should narrow your range, not lock it in. If you’re just starting out, our honest beginner’s guide to stick welding pairs especially well with these references.
Before you strike an arc, it’s equally important to protect yourself. Make sure your gear matches the job, starting with complete welding PPE — and note that OSHA’s welding, cutting, and brazing standards set the baseline for ventilation and fire control at every station (OSHA).
The goal isn’t to memorize every number on the page. It’s to build enough judgment to trust the chart when it’s right, and to trust your puddle when it’s telling you the chart needs adjusting. That’s the lesson every stick welder learns, and it’s exactly where we’ll start in the next section: breaking down the code stamped on the electrode wrapper.
Walk into any shop and you’ll see boxes of rods with a four-character code stamped on the end: E6010, E7018, E6013. That code is not a part number. It’s a compressed spec sheet written by the American Welding Society under the AWS A5.1 specification for carbon steel electrodes, and once you can read it out loud, you never have to guess what a rod will do again.
Take E6010 and break it apart:
So E6010 reads as: electrode, 60,000 psi minimum, all-position, high-cellulose sodium coating that requires DC electrode positive. Hook it to AC and it will not run properly — a mistake we’ll hit hard in the troubleshooting section.
Quick Note: The tensile number is a minimum for the deposited weld metal, not for the plate you’re welding. A 70,000 psi rod on 50,000 psi plate is normal and correct; you’re matching or exceeding the base metal, never under-matching it.
| Digit | Coating Type | Usable Current |
|---|---|---|
| 0 | High cellulose sodium | DCEP only |
| 1 | High cellulose potassium | AC or DCEP |
| 2 | High titania sodium | AC or DCEN |
| 3 | High titania potassium | AC or either DC polarity |
| 4 | Iron powder titania | AC or either DC polarity |
| 5 | Low hydrogen sodium | DCEP only |
| 6 | Low hydrogen potassium | AC or DCEP |
| 7 | Iron oxide titania, high iron powder | AC or either DC polarity |
| 8 | Low hydrogen potassium with iron powder | AC or DCEP |
Notice the pattern that matters most on the job: 5 and 6 mean low hydrogen. E7015 runs DCEP only; E7016 and E7018 run AC or DCEP. That low-hydrogen coating is the reason E7018 is the default for structural and code work — less hydrogen in the puddle means less risk of cold cracking in thick or heavily restrained steel. It’s also why E7018 rods must be stored in a rod oven or held in a heated quiver; a low-hydrogen coating that soaks up atmospheric moisture hands that hydrogen right back to the weld. As a reference point, our 3/32 E7018 amperage guide walks through exactly how one specific diameter behaves once you’ve picked polarity.
Real boxes often read E7018-H4, E7018-1, E7018-R, or E7018-M. Here’s what each adds:
Tensile strength is only half the story. A typical E7018 deposit carries a minimum yield strength around 58,000 psi with roughly 22–25% elongation in a standard test gauge. That elongation figure is the ductility margin — the ability to stretch and absorb load before fracture — and it’s noticeably higher than the cellulose rods like E6010. When a WPS calls for E7018, the inspector isn’t chasing a branding preference; the engineer specified that yield, that elongation, and that hydrogen ceiling.
And here’s the elegant part: only the last two digits change as strength climbs. E8018, E9018, E10018 and E11018 all keep the same third and fourth digit logic. The 8 still means low-hydrogen potassium with iron powder, the 1 still means all-position, and only the deposited metal gets stronger. Learn one coating code and you’ve learned it for the whole family. The same digit logic carries into stainless classifications like E308L-16, which we break down further in what electrodes are in welding: types, numbers, polarity and how to choose.
Note: Classification tells you what the rod can do. It doesn’t tell you the amperage for your plate thickness, your joint, or your position — that’s the job of the master chart in the next section.
This is the table most people came for, so let’s put it up front and then explain what actually happens when you dial those numbers in. Every figure below is a starting range for mild steel on clean, fit-up plate at room temperature. Treat them as a launch point, not a commandment.
| Electrode | 5/64 (2.0 mm) | 3/32 (2.4 mm) | 1/8 (3.2 mm) | 5/32 (4.0 mm) | 3/16 (4.8 mm) | Polarity |
|---|---|---|---|---|---|---|
| E6010 | 20–45 A | 40–85 A | 90–130 A | 110–165 A | 140–200 A | DCEP only |
| E6011 | 20–45 A | 40–80 A | 90–130 A | 120–170 A | 140–210 A | AC or DCEP |
| E6013 | 20–40 A | 40–80 A | 80–130 A | 110–160 A | 140–190 A | AC or DC either |
| E7014 | 25–45 A | 50–90 A | 80–140 A | 120–180 A | 150–220 A | AC or DC either |
| E7018 | 30–55 A | 70–110 A | 90–150 A | 120–180 A | 170–240 A | AC or DCEP |
| E7024 | — | 60–100 A | 110–160 A | 150–220 A | 200–275 A | AC, DCEN or DCEP |
Notice the anchors that show up repeatedly in shop practice: a 3/32-inch (2.4 mm) E7018 wants about 70–110 A, a 1/8-inch rod sits around 90–150 A depending on the classification, and a 5/32-inch (4.0 mm) E7018 usually wants about 120–180 A. We cover the 3/32 rod in depth in our 3/32 E7018 amperage and polarity guide, and the heavier size in our 5/32 E7018 settings walkthrough.
Electrode boxes in the US list inches; machines and European rods list millimeters. The quick math: mm = inches × 25.4, and inches = mm ÷ 25.4. So 5/64 in = 0.078 in ≈ 2.0 mm, 3/32 in ≈ 2.4 mm, 1/8 in = 3.2 mm, 5/32 in = 4.0 mm, and 3/16 in ≈ 4.8 mm. Round to the nearest standard metric rod size (2.0, 2.5, 3.2, 4.0, 5.0 mm) and you’ll never buy the wrong box again.
For a fuller breakdown of what those digits on the wrapper mean, see what electrodes in welding actually are. Welding standards and classification systems are maintained by the American Welding Society.
Budget machines frequently deliver output 10–20% off the number printed on the knob, and the drift grows as the machine heats up. Long, thin cables make it worse: every extra 10 feet of undersized lead costs you real amperage at the arc. If you’re running 50-foot leads to a fixed station, upsize the cable one gauge and keep connections clean and tight, which our cable connectors guide covers in detail.
Quick Note: Setting amps by sound and arc feel beats trusting the dial. A smooth, soft crackle means you’re in range. A harsh, violent pop means too hot; a stuttering, freezing arc means too cold. Start at the chart number, strike an arc on scrap, and adjust in 5–10 A steps until the puddle flows like warm honey. Inverter machines and long leads make chart values approximate, not absolute.
Duty cycle is the percentage of a 10-minute period a machine can run at rated output before its thermal protector trips. A 200 A machine at 30% duty cycle can only weld at 200 A for 3 minutes out of every 10, but at 130 A the same machine may run continuously. Manufacturers such as Miller Welds and Lincoln Electric publish these ratings on the data plate.
Heat input (kJ/in) = (60 × arc volts × amps) ÷ (1000 × travel speed in inches per minute). On thin plate, dropping from 125 A to 90 A at the same travel speed cuts heat input by about 28% — which is usually the difference between a bead and a blown hole. Our stick welding thin metal settings guide walks through that exact trade-off.
Amperage charts tell you how hot to run. Selection charts tell you what to run, and that question has two axes. One is base metal condition: clean or rusty, thick or thin, carbon steel or stainless or cast iron. The other is the weld’s job: a root pass that must freeze fast, a structural fillet that must pass inspection, a cosmetic bead on visible sheet. Get both axes right and the rod choice mostly makes itself. Get them wrong and no amperage setting saves you, which is why any chart ranking electrodes from “best” to “worst” is nearly useless. More on that at the end.
Every stick electrode is a compromise between how fast its pool solidifies and how much metal it deposits. Fast-freeze rods (the 6010 and 6011 family) build a slag chemistry that sets almost instantly, so the pool holds its shape pointed uphill or hanging overhead. The price is a forceful, digging arc, heavy ripples, and a relatively low deposition rate. Fast-fill and medium-fill rods (7018, 7014, 7024) carry iron powder in the coating, deposit metal generously, and leave smoother beads, but their fluid pools sag if you fight gravity. Hydrogen sits on a third axis: low-hydrogen coatings (7018, 7024) need dry storage, while cellulose coatings (6010, 6011) basically don’t. That difference is why how electrodes are classified matters more than most welders admit.
| Rod | Penetration | Spatter | Slag volume | Out-of-position | Hydrogen level |
|---|---|---|---|---|---|
| E6010 | Deep, digging | Moderate | Thin, easy peel | All positions | High (cellulose) |
| E6011 | Deep, digging | Moderate | Thin, easy peel | All positions | High (cellulose) |
| E6013 | Shallow | Light | Thin, covers well | All positions | Moderate |
| E7014 | Medium | Light | Thin, brittle | All positions | Moderate |
| E7018 | Medium | Very low | Thick, glassy | All positions | Low |
| E7024 | Medium-shallow | Very low | Thick, glassy | Flat & horizontal fillet only | Low |
E6010 produces a forceful digging arc that punches through mill scale and light contamination. It is the classic open-root pipe rod, precisely because its fast-freeze slag bridge holds a keyhole root without dripping through. Run it on DCEP with a tight arc and a slight whip-and-pause and it will burn through rust, paint, and old coatings that make a 7018 spit and wander. If you’re sequencing pipe welds, it’s almost always pass one, and pipe welding procedures covers how root, hot pass, fill, and cap split up the work.
E6011 is essentially the AC-friendly version of E6010. If you own an old transformer buzz box with no DC setting, 6011 is your digging rod. It handles rust, mill scale, paint, and grimy farm repairs far better than E7018 or E6013, which is why it lives in glove boxes on tractors and utility trailers nationwide. Call it the “one rod in the truck” rod; it’s a fair claim.
E6013 is the opposite temperament: soft arc, shallow penetration, light spatter, a bead that lays down pretty with minimal effort. That makes it the standard first rod for thin sheet, tacking, and welding over gaps or poor fit-up. It won’t dig, so it won’t save a dirty joint, but on clean light material it’s genuinely forgiving. Thin-material settings live in stick welding for sheet metal.
E7014 bridges the gap: iron-powder coating, medium penetration, easy starts, low spatter, and acceptable AC performance. It gives you 7018-ish speed without 7018’s fussiness about moisture, which makes it popular for maintenance work on mixed machines.
E7018 is the default structural rod under AWS D1.1-type specifications: low-hydrogen, iron-powder, smooth arc, medium penetration, and noticeably better ductility and notch toughness than the 60-series. It rewards a long enough arc to keep the coating from stubbing and a rod kept in an oven or sealed quiver. For settings on common sizes, see 3/32 E7018 amperage and 5/32 E7018 amperage and technique.
E7024 is the flat-shop workhorse: very high deposition, buttery arc, a cap that needs almost no finishing. It’s limited to flat and horizontal fillets because its heavy iron-powder pool sags anywhere else. Production shops running fillets on heavy plate love it; field welders rarely touch it.
Stainless and cast iron don’t follow the 60/70 rules. For stainless, the base metal number drives the choice: E308L-16 for 304-type alloys, E316L-16 for molybdenum-bearing 316 grades, and E309L-16 for joining stainless to carbon steel. The “-L” means low carbon, which reduces carbide cracking in the heat-affected zone. Cast iron gets a nickel electrode like ENi-Cl, run cool on short, staggered beads with peening between passes to relieve shrinkage stress.
Quick Note: Stainless rods run on DCEN with a shorter arc and lower amperage than the equivalent carbon steel rod. Stainless also has lower thermal conductivity, so it warps harder — and sheet-metal distortion control is a different game entirely, as our TIG sheet metal guide explains.
A ranking chart will happily tell you that E7018 “beats” E6013 on tensile strength, deposition, and toughness. All true, and all irrelevant if the job is a 20-gauge patch on a rusty fender, where 6013 is the right answer and 7018 would blow through the panel. Charts describe capability; your joint decides which capability matters. Before committing to any electrode, check the machine, fit-up, position, and code, and confirm the rest of your setup, since cable length, connectors, and ground placement all shift your real output, as we cover in welding connector selection. A rod that’s perfect on paper and wrong for the joint is still the wrong rod. And if you’re still building confidence with basics, is stick welding hard? is a good place to shore up fundamentals before chasing specialty electrodes.
Every beginner memorizes the amperage chart, then walks up to a real job and freezes. The plate is 3/8 inch on one side and 18-gauge sheet on the other, the joint is overhead, and the rod in your hand doesn’t match either number. Charts give you amperage by rod size. What they rarely spell out is which rod size belongs on which thickness, in which joint, in which position. This section fills in those missing columns.
The most reliable matching rule in SMAW: start with an electrode diameter roughly equal to the plate thickness for the root pass, then step up in size for fill passes. A 1/4-inch plate gets a 1/4-inch root rod in theory, though most welders dial back to 3/16 for controllability. The practical companion rule is that your electrode diameter should generally not exceed plate thickness on the first pass, because excess heat sinks into thin metal and blows the joint open.
| Plate Thickness | Practical Rod Size (root/fill) | Starting Amperage |
|---|---|---|
| 18 ga (0.048 in) | 5/64–3/32 E6013 | 40–70 A |
| 16 ga (0.063 in) | 3/32 E6013/E7018 | 50–80 A |
| 1/8 in | 3/32–1/8 | 70–110 A |
| 3/16–1/4 in | 1/8–5/32 | 100–140 A |
| 3/8–1/2 in | 5/32–3/16 | 130–180 A |
| 5/8–1 in | 3/16 (multi-pass) | 160–220 A + preheat |
Below about 0.048–0.063 inch (18 to 16 gauge), stick welding gets genuinely difficult. A 5/64 or 3/32-inch E6013 at 40–70 A is the practical floor, and even then you’re racing the heat. For more on pushing past that limit, see our stick welding thin metal guide.
| Joint | Fit-Up | Rod Suggestion | Amperage |
|---|---|---|---|
| Butt (open root) | 3/32–1/8 in gap, 1/16 in land | E6010 root | 90–110 A DCEP |
| Butt (square groove) | Tight, minimal gap | E7018 multi-pass | Per rod chart |
| Lap | Flush overlap | E6013/E7014 | Low end of range |
| T-fillet | 90°, no gap | E7018/E7024 | Mid to high range |
| Corner | Edges aligned | E6013 | Low to mid |
| Edge | Edges butted | E6013, downhill | Low end |
Open-root pipe joints typically pair a gap of about 2.5–3.2 mm (3/32–1/8 inch) with a land of roughly 1.6 mm (1/16 inch) when running a 6010 root. That gap matters more than amp settings: too tight and you wash the land away, too open and the rod won’t bridge. For the full sequencing, our pipe welding procedures guide breaks down root, hot pass, fill, and cap.
Position codes aren’t suggestions. Flat and horizontal work is forgiving; vertical-up demands fast-freeze or controlled-fill rods and disciplined weaving; vertical-down suits thin sheet and fast root runs; overhead is its own sport. Key matching facts:
Quick Note: Overhead stick welding usually means trimming 10–15% off your flat amperage and shortening your arc. Our dedicated overhead stick welding guide covers 4F and 4G technique in depth.
Thin sections want tight fit-ups, faster travel, smaller rods, and often vertical-down progression. Thick sections want a modest root gap, slower travel, stringer passes, and multi-pass stacking with interpass cleaning. When you move from a 6010 root to 7018 fill and cap, drop back into your low-hydrogen routine: fresh rod from the oven, short arc, no dragging the slag ahead of your puddle.
Here’s the failure that embarrasses even experienced welders: a flawless chart setting on 1-inch plate or high-carbon steel, followed by a cold crack along the toe two hours later. Thickness means faster cooling; high carbon and restraint make it worse. AWS and ASME procedures commonly call for preheating thick or high-carbon sections to 200–400 °F (100–200 °C). Preheat slows cooling enough to let hydrogen escape before it can cause cracking. No amperage chart can substitute for it. And since preheating, grinding, and hot work all carry fire risk, brush up on station safety with our welding PPE guide and OSHA’s 1910.252 hot-work requirements before you torch anything.
Note: Match the rod to the thickness, the joint to the fit-up, and the position to the coating. Get those three right and the amperage chart has something honest to work with.
Every stick welding chart ends at a number on a dial. But the dial doesn’t lay the bead — your hands do. Four variables fill the gap between “set to 90 amps” and a fused, properly profiled weld: rod angle, arc length, travel speed, and weave width. No amperage table controls them for you. This is where static numbers turn into motion.
Most covered electrodes want to be dragged, meaning the top of the rod leans back over the direction of travel, at roughly 5 to 15 degrees of tilt. Dragging shields the puddle with the flux coating and lets slag trail behind instead of running ahead of the arc. Push instead and you blow the puddle forward, expose molten metal to air, and invite porosity and a lumpy, oxidized bead.
There are honest exceptions. A whipping E6010 root often runs with a slight push or a near-vertical rod, and a few fast-fill rods tolerate a mild push in flat. Our guide to push vs. pull stick welding covers which rods bend the rule and why. Working default: drag it, hold the angle steady, and change only one thing at a time.
Arc length is the distance between the rod tip and the puddle, and the rule is simple: about the diameter of the electrode core wire or less. For a 1/8-inch rod, that means a 1/8-inch arc or tighter. A long arc does three bad things at once — spatter, atmospheric nitrogen and oxygen that poison the weld and cause porosity, and a wandering puddle that stops tracking straight.
It also steals or adds amperage. A long arc drops effective current and penetration; a tight arc concentrates it. That’s why two welders on the same dial setting get different results. Our 3/32 E7018 amperage guide shows how much narrower that window gets on small-diameter low-hydrogen rods.
Hand travel speed typically runs 6 to 12 inches per minute, a big reason SMAW is slower than wire processes. Slow down for thick plate, uphill vertical, and root passes; speed up for thin sheet and out-of-position fills where gravity works against you.
| Condition | Typical Speed | What You’ll See If It’s Wrong |
|---|---|---|
| Flat butt, 1/4–3/8 in plate | 8–12 in/min | Too fast: narrow crown, undercut at toes. Too slow: wide bead, heavy slag. |
| Vertical up (3G/3F) | 4–8 in/min | Too fast: lack of fusion at edges. Too slow: sagging buildup, rollover. |
| Open-root 6010 pipe pass | 6–10 in/min | Too fast: blown root, inconsistency. Too slow: excessive penetration, hang-through. |
| Thin sheet (16–18 ga) | 10–14 in/min | Too slow: burn-through. Too fast: cold lap, no fusion. |
| Overhead 4F/4G | 6–9 in/min | Too slow: sagging puddle. Too fast: thin, starved bead. |
Read the bead, not the clock. A too narrow bead with sharp, tall toes means you’re moving too fast, and undercut follows — see our undercut causes and acceptance limits guide for when that becomes a rejection. A wide, flat, gray bead means too slow or too hot.
Stringer beads are the default because they keep heat input down. When you do weave — mostly vertical-up E7018 fill passes — hold the weave width to about 2.5 to 3 times the electrode diameter. A 1/8-inch rod weaves to roughly 3/8 inch, no wider. Go wider and the trailing edge of the puddle never gets enough heat, so trapped slag and lack of fusion hide under a bead that looks perfect on top.
Quick Note: Angle, arc length, and amperage are a three-legged stool. If your puddle is too fluid, drop the amperage 5 amps and tighten the arc before you touch travel speed. Change one variable, run one bead, then judge. Chasing three variables at once is how people conclude they “can’t weld.”
Cut three coupons of 1/4-inch plate, run eight stringers with the same rod, and vary deliberately: beads 1–2 at your chart amperage with a tight arc, 3–4 with a 1/4-inch arc, 5–6 at 10 amps hot, 7–8 at 10 amps cold. Photograph each. Twenty minutes of that beats an afternoon of random practice, and it builds the feel you need to verify your dial when machine and chart disagree. Output drifts with cable length and connectors, so a healthy arc is your backup instrument — a habit worth building before you troubleshoot leads and cable connectors that quietly rob you of amps.
Keep the safety basics in muscle memory while you drill: leathers, gloves, and the correct lens shade for your amperage, per welding PPE. New to the arc? Start with our honest beginner’s guide to stick welding.
Most stick charts you find online are written for one assumption: you are welding clean mild steel in a shop. The moment your project turns to stainless, a cracked engine block, a galvanized guardrail, a line of pipe, or a bucket tooth, the standard amperage table quietly stops helping. Special materials need their own small set of charts, and this section is that set.
Stainless steel conducts heat roughly a third as well as carbon steel, so the heat from your arc does not travel away from the joint. It sits there, which is why stainless warps and distorts far more readily than mild steel at the same settings. The practical response is simple: drop your amperage about 10 to 20 percent below what you would use for a similar thickness of mild steel, keep the arc short (about one electrode diameter), and move quickly.
Watch the heat input: less is almost always better. A long arc on stainless also burns out the alloying elements and can leave a sugared, oxidized surface that will not pass inspection. On thin stainless, a wider discussion of heat control and filler choice is worth reading in the complete guide to TIG welding sheet metal, since TIG often beats stick here.
Quick Note: Stainless welding fume contains hexavalent chromium, which OSHA regulates at a permissible exposure limit of 5 micrograms per cubic meter as an 8-hour time-weighted average (OSHA 1910.252). Welding fumes as a class are classified as carcinogenic to humans, IARC Group 1, since the 2017 IARC Monographs evaluation. Fume control is not optional on any material.
Cast iron is brittle and shrinks hard as it cools, so the weld wants to crack. That is why ENi-Cl and similar nickel-based electrodes are the standard repair rods: the nickel deposit stays ductile and absorbs the movement as the casting cools. Run them at low amperage for the rod size, deposit short stringer beads about one to two inches long, and peen each bead while it is still hot to relieve shrinkage stress. For heavy sections or mended breaks under restraint, preheat to 400-600°F, weld a short segment, and let it cool slowly under a blanket.
The zinc coating on galvanized steel boils off before the steel even melts, releasing zinc oxide fume. Inhaling it can cause metal fume fever, with flu-like chills, nausea, and headache hours after exposure. OSHA’s permissible exposure limit for zinc oxide fume is 5 mg/m³ (respirable fraction) as an 8-hour time-weighted average. Grind or chemically remove the coating at least one inch back from the joint where practical, work in open or mechanically ventilated space, and wear respiratory protection. The same fume-control mindset applies to every process; welding PPE covers exactly what to wear and why.
Pipe welding follows a fixed choreography, and each pass has a typical rod. A common sequence uses E6010 or E7010 for the root, E7018 or E8010 for the hot and fill passes, and E7018 for the cap, with rod diameter increasing as the groove fills. Full pass sequencing, positions, and inspection requirements are covered in detail in pipe welding procedures.
Hardfacing splits into two jobs. Build-up restores worn metal to original dimensions with a ductile, weldable rod; overlay lays a wear-resistant alloy on top. Dilution is the enemy: too much penetration mixes base metal into the overlay and softens it, so run lower amperage and faster passes for overlay work. A general-purpose repair rod is not a wear rod, and the hard, brittle overlay rod will crack if used to rebuild a structural part.
| Material | Electrode | Polarity | Amperage vs. Mild Steel |
|---|---|---|---|
| 304/304L stainless | E308L-16 | AC or DCEP | 10-20% lower |
| 316/316L stainless | E316L-16 | AC or DCEP | 10-20% lower |
| Stainless to carbon | E309L-16 | AC or DCEP | 10% lower |
| Cast iron | ENi-Cl | DCEP preferred | 20-30% lower |
| Galvanized steel | E6011 / E7018 | AC or DCEP | Standard, short arc |
| Pipe root | E6010 / E7010 | DCEP | Standard |
| Pipe fill and cap | E7018 | DCEP | Standard, increase rod size |
| Worn equipment surfaces | Hardfacing overlay rod | Per manufacturer | Reduced, fast travel |
Short Note: Every rod above has its own manufacturer sheet, and that sheet outranks any generic chart. When the two disagree, the rod manufacturer and your WPS win.
A stick welding chart is the closest thing the SMAW world has to a co-worker who never gets tired of your questions, but it is still paper. It cannot see your machine, your weather, or your fit-up. So let’s be honest about what a chart actually buys you, what it can never tell you, and the mistakes that turn correct-looking numbers into rejected welds.
A chart assumes a calibrated machine, short leads, room temperature, and a clean, properly fitted joint. The real world adds:
Quick Note: Treat every chart value as a starting point, not a command. The chart tells you where to begin; the puddle tells you where to go.
Most catastrophic stick welding failures are not caused by bad charts. They are caused by ignoring what the chart says. The top offenders:
| Mistake | What Happens | The Fix |
|---|---|---|
| Running E6010 on AC | Erratic arc, spatter, weak penetration | E6010 is DC electrode positive only. On an AC machine, switch to E6011, which is formulated for AC or DCEP |
| Running E7018 on DCEN (electrode negative) | Harsh, unstable arc, poor penetration, porosity risk | E7018 runs on AC or DCEP only. Check polarity before every rod change |
| Leaving low-hydrogen rods out in humidity | Moisture reabsorbed into the coating, hydrogen-induced cracking | AWS D1.1 limits open-air exposure of low-hydrogen electrodes to roughly 4 hours before they must be redried in a holding oven |
| Too long an arc | Lost penetration, heavy spatter, porosity | Keep arc length about equal to the rod core diameter. Our 3/32 E7018 amperage guide covers arc length rod-by-rod |
| Wet or damaged electrode holder | Shock hazard, arc instability, contaminated puddle | Inspect jaws and insulation daily; replace cracked bodies immediately |
| Ignoring duty cycle | Thermal trips mid-pass, restart porosity at the tie-in | Plan passes around duty cycle; a small machine at 20% will trip if you chase a long bead |
| Chasing the dial instead of reading the puddle | Burn-through or cold lap, depending on direction | Adjust one variable at a time, watching the puddle, not the display |
| Heavy-slag rod overhead | Slag dripping into the puddle, inclusions | Use a fast-freeze rod like E6010/E6011 overhead. Our overhead stick welding guide covers 4F/4G specifics |
| Skipping joint prep | Wide gaps masquerade as “not enough amps” | Fix fit-up first; cranking amps causes burn-through and slag entrapment |
Chart math ignores stubs. A 14-inch rod with a 2-3 inch unusable stub loses roughly 15-20% of its length to waste. Multiply that by hundreds of rods and it is real money. Where the chart allows, buy longer rods and ream your stub with a stub end for critical passes.
Short Note: Poor fit-up is the number one hidden variable. A gap you should have closed with a grinder will send you chasing amperage upward, and that path ends in burn-through and slag entrapment. Fix the joint, not the dial.
Change one variable, weld a test bead, and write the result down. That single habit is how a generic chart becomes your shop’s calibrated reference. If you’re auditing your station, our welding PPE guide covers the full kit, and OSHA’s general industry welding standard (1910.254) plus their welding portal (osha.gov/welding-cutting-brazing) lay out the ventilation and fire-watch baseline every SMAW station must meet.
Use the chart. Trust the puddle. Document the result.
Even the most accurate electrode chart taped to your machine won’t keep defects out of every bead, which is why reading the puddle matters as much as reading your settings. The chart below links the usual SMAW culprits to the dial setting that fixes them and the hand movement that prevents them.
One golden rule comes first: if a defect shows up in every bead, suspect your setup before your hands. Polarity, welding connectors, machine calibration, rod condition, or your environment are more likely offenders than technique.
Quick Note: As OSHA welding, cutting, and brazing guidelines make clear, never troubleshoot from an unsafe position. Follow proper welding PPE practice before touching a setting.
| Defect | What It Looks Like | Common Causes | Chart-Level Fix | Technique Fix |
|---|---|---|---|---|
| Porosity | Small holes or cavities scattered through the bead. | Moist rods, long arc, contaminated base metal, wrong polarity. | Fit fresh dry rods, confirm polarity, and cross-check your machine against your 3/32 E7018 amperage chart. | Hold arc length near one core diameter and clean off paint, rust, or oil before striking. |
| Undercut | A groove melted along the weld toe, left unfilled. | Too much amperage, travel too fast, wrong rod angle, wide weaving. | Drop 5-10 amps from your chart value, a correction Lincoln Electric training material repeats constantly. | Slow down and use a proper drag angle. Our guide on undercut causes and acceptance limits covers tolerances. |
| Slag Inclusion | Non-metallic slag trapped inside or between passes. | Welding over old slag, low amperage, skipped interpass cleaning, wrong travel speed. | Nudge amps toward the middle of your range; low heat leaves the puddle unable to wet the sidewalls. | Chip and wire-brush every pass, prefer stringers over aggressive weaves on tight joints, and never restart on cooled slag. |
| Lack of Fusion/Penetration | The weld never fuses to the sidewall or root. | Too little amperage, wrong polarity, wrong angle, fast travel, improper root gap. | Bump amps up inside the rod’s range; for larger rods like those in our 5/32 E7018 amperage guide, verify the machine holds output. | Hold the drag angle and slow down. For root passes in pipe welding procedures, a slight whip and pause helps. |
| Spatter | Heavy molten droplets flung from the arc. | Long arc, excess current, DCEN on a DCEP rod, poor ground connection. | Trim amps or fix polarity; many cellulose rods are built for DCEP, and DCEN turns them violent. | Shorten the arc and inspect your ground clamp. Loose connections add resistance and an erratic arc. |
| Burn-Through | A hole melted straight through the base metal. | Excess amperage, thick rod on thin plate, slow travel, wide root gap. | Cut amps sharply and step down in rod diameter. For delicate work, use our stick welding thin metal guide. | Increase travel speed with a steady motion. On stick welding sheet metal, small stringers spread the heat. |
| Cracking | Longitudinal, transverse, or crater cracks that may appear hours or days later. | Hydrogen, restraint, fast cooling, mismatched rod strength, missing preheat on thick sections. | Switch to low-hydrogen E7018, verify polarity, and follow code preheat requirements as the American Welding Society (AWS) stresses. | Fill craters, hold interpass temperature, and slow cooling on thick high-carbon steel. Delayed hydrogen cracking makes prevention critical. |
Arc blow frustrates even veterans. Magnetic forces shove the arc off course, and it is worst on DC at high amperage, on odd part geometries, or with poor ground placement. The result is inconsistent penetration, porosity, and heavy spatter.
Note: Keep your welding PPE fully in place while chasing arc blow, since sudden instability throws unpredictable spatter. For equipment requirements, see OSHA 1910.254 on arc welding equipment.
Change one variable at a time. Whether you’re running overhead stick welding or deciding between push or pull stick welding, that discipline stops you from trading one defect for another.
The core lesson: a defect that repeats on every bead is a settings problem, not a technique problem. Verify polarity, machine output, and rod condition first. After that, trust the puddle, because the chart gets you in the ballpark and your eyes get you home.
Everything up to this point has been a generic chart. The version that will actually change your welding is the one you build for your own machine, your own rods, and your own shop air. A laminated one-pager taped next to your buzz box beats any article, because it contains numbers you personally measured rather than numbers you hoped were right.
Dials lie. Inexpensive machines commonly read 10-20% off from what the arc actually receives, so the first entry in your chart should never be a printed value. Buy or borrow a DC clamp meter, strike an arc on scrap, clamp the electrode lead, and record the real reading at three dial points: low, middle, and high. Repeat after a few minutes of running, since thermal drift moves the output on older transformers.
Quick Note: Write down cable length and gauge with your calibration numbers. A 100-amp setting through 25 feet of undersized 2/0 cable is not the same 100 amps as through 10 feet of 2/0. If your leads heat up or the arc sags, check the connections first — our guide to welding connectors shows how loose lugs and corroded cam locks quietly eat output.
Keep a small notebook or spreadsheet next to the rod oven. Every time a setting works, log it. After a month you will have a shop-default table that looks something like this:
| Rod | Diameter | Polarity | Measured amps | What it’s for in your shop |
|---|---|---|---|---|
| E6011 | 1/8 in | AC | 75-95 | Farm repairs, dirty stock |
| E6013 | 3/32 in | AC or DCEP | 45-60 | Sheet, cosmetic beads |
| E7018 | 3/32 in | DCEP | 70-90 | Vertical-up root and fill |
| E7018 | 5/32 in | DCEP | 110-135 | Horizontal and flat fill |
| E7024 | 1/8 in | AC or DCEP | 95-120 | Flat production fillets |
For the finer points of the two most common structural rods, our deep dives on 3/32 E7018 amperage and 5/32 E7018 settings will help you fill in the technique notes beside each number.
A wall chart without safety data is half a chart. Add these four lines where you can see them:
Short Note: If your chart lists only settings and not shades, cfm, and clearance, your crew will default to whatever hood is closest. Make the safety numbers as large as the amperage numbers.
Re-laminate the chart whenever you recalibrate, retire a rod, or discover a setting that works better than the one you wrote down. If stick still feels like a struggle at the start, our honest beginner’s guide sets realistic expectations.
The chart tells you where to start. The puddle tells you where to go. The code tells you what must be documented. Print those three lines at the top of your wall chart, and you will never chase a number past the point where your eyes should be doing the work.
Most 1/8-inch (3.2 mm) E7018 electrodes run best between about 90 and 150 amps on AC or DCEP. Start around 115-125 A on clean flat steel and adjust up for thick plate or downhill-free vertical-up work, and down for thin or poorly fitted joints. Read the puddle, not just the dial, because machine calibration varies.
No. E6010 has a high-cellulose sodium coating designed for DCEP only, and it will sputter, stick, and lose the arc on AC. Use E6011 instead, which uses a potassium coating so the same fast-freeze arc works on AC or DCEP. E6013 and E7018 are also AC-friendly.
E6011 is a fast-freeze, deep-penetrating rod that handles rust, paint, and dirty metal, which makes it a favorite for repairs. E6013 has a softer arc, shallower penetration, lighter spatter, and a smooth appearance, so it’s better on clean sheet metal and light fabrication. Neither is a low-hydrogen rod.
It depends on the electrode. E6010 requires DCEP, E7018 runs on AC or DCEP, and E6013 runs on AC or DC either polarity. DCEP puts more heat into the electrode and gives deeper penetration, while DCEN puts more heat into the plate and suits thinner material or certain iron-powder rods.
Keep E7018 in a sealed, hermetically closed container until use, then hold opened rods in a heated rod oven at roughly 250-300 F (120-150 C). AWS D1.1 limits open-air exposure of low-hydrogen electrodes to about 4 hours before they need to be redried at roughly 700 F (370 C) for one to two hours.
E6013 is usually the easiest to strike and restrike, and it produces a smooth bead with light spatter on clean mild steel, which builds confidence fast. Once you can run consistent beads, move to E7018 for structural-quality practice or E6011 if you want to learn deep-penetration repair work.
Yes, but with limits. Below about 18 gauge (0.048 inch) stick welding becomes very difficult because arc heat and rod diameter overwhelm the material. Use a 5/64 or 3/32-inch E6013 at low amperage, run short stringers, and let the part cool between beads to avoid warping or burn-through.
That is typically hydrogen-induced cracking. Moisture in the electrode coating, the wrong polarity on a low-hydrogen rod, a fast-cooling thick section, or a highly restrained joint all push hydrogen into the weld. Dry your rods, use E7018 correctly, and preheat thick or high-carbon steel to slow cooling.