Overhead Stick Welding: The Complete Guide to 4F & 4G Technique, Amperage, and Rod Selection
My first overhead weld landed on my forearm. I still have the small, shiny scar to prove it.…
READ ARTICLE →Imagine walking into a fabrication shop for your first big interview. The supervisor slides a qualification sheet across the desk and asks, “So, what positions are you certified in?” Your eyes land on a string of codes: 1G, 2G, 3G. At first glance, they look more like cell phone generations than a measure of welding skill. Yet in that moment, those codes can decide whether you land the job or walk out empty-handed. That is exactly why so many welders search for a reliable 1g 2g 3g 4g 5g 6g welding position pdf to keep on the shop floor.
A welding position is the orientation of the weld joint in relation to gravity and the welder. It determines how molten metal flows, how much control you have over your puddle, and how safe and repeatable your work will be. A bead on flat steel is drastically different from one deposited overhead, where gravity fights to pull the weld metal down onto you. These orientations are not arbitrary; they are standardized by the AWS A3.0, Standard Welding Terms and Definitions, the official terminology for the industry.
These codes rest on two distinctions. The number refers to the joint orientation. The letter suffix tells you the weld type: G for a groove weld, F for a fillet weld. A 3G weld is a vertical groove weld; a 3F weld is a vertical fillet weld. This difference matters because qualification tests are specific to the weld type. The codes cover plate positions (1G, 2G, 3G, 4G), fillet variants (1F, 2F, 3F, 4F), and two pipe-specific positions (5G and 6G) with no plate equivalent.
These codes go far beyond memorization. They directly impact hiring, pay grade, code compliance, and finished-product quality. Many structural jobs fall under the AWS D1.1 Structural Welding Code—Steel, first published in 1928 and still governing most steel construction. Pressure work often references ASME standards, while cross-country pipelines must follow strict federal regulations like 49 CFR Part 192.
Qualifications carry weight in the paycheck too. Pipe positions—5G and 6G—are the gold standard of welding qualification. Because they have no plate equivalent and test your ability to work in multiple orientations on a fixed pipe, they often unlock higher-paying pipeline and pressure work. Seasoned welders will tell you that investing time into harder positions is one of the fastest ways to level up your career.
Quick Note: The difficulty of a position is not universal. Your process, machine settings, and technique all play a role. Mastering the right TIG welding polarity or understanding polarity for flux core welding can drastically improve control in vertical or overhead joints.
With so much on the line, it’s no surprise welders constantly search for a “welding position pdf.” Certifications, qualification tests, and job bids all hinge on these codes, and a printable chart at your workstation saves time when you need a quick reference. A good chart lets you check joint orientation, weld type, and test scope without flipping through hundreds of pages of a codebook. For those building fundamentals, our guide to welding practice or how to use a wire welder pair perfectly with a position chart to reinforce muscle memory.
Still, a PDF is only a reference. True proficiency comes from pairing that knowledge with safe habits. Proper protective eyewear for welding, a well-planned welding facility, and awareness of hazards highlighted by OSHA and NIOSH are just as vital as your code knowledge.
At its core, understanding 1G through 6G is the foundation for consistent technique and career growth. The codes dictate what you qualify for, what jobs open up, and how you approach each joint. Throughout this guide, we will break down plate, fillet, and pipe positions in depth, explore qualification requirements, and share techniques to overcome their challenges. For now, remember this: these aren’t arbitrary numbers. They are a universal language connecting welders, inspectors, and employers worldwide. That is precisely why they matter—and why a trusted reference in hand can make all the difference.
When a qualification sheet lists codes such as 1G, 2G, 3G, 4G, 5G and 6G, these are not arbitrary labels. They come from the American Welding Society (AWS) A3.0 standard for welding terminology, which is referenced by structural codes like AWS D1.1. The key to reading them is simple: split each code into two parts. The number describes the spatial orientation of the joint, and the letter describes the type of joint being welded.
The first character tells you how the joint is oriented in space. For plate work, these are the most common values that every welder will encounter during their welding practice:
| Number | Position | Description |
|---|---|---|
| 1 | Flat | Welding performed with the joint roughly horizontal and the face of the weld facing upward. |
| 2 | Horizontal | The joint is horizontal, but the weld face is not flat, requiring control of the molten pool. |
| 3 | Vertical | The axis of the joint is vertical, with the weld progressing up or down. |
| 4 | Overhead | As defined in AWS D1.1/D1.1M:2020, welding is performed from the underside of the joint. |
| 5 | Fixed horizontal pipe | Pipe-only. The pipe is fixed horizontally, so the welder works through flat, vertical and overhead areas. |
| 6 | Fixed pipe at 45 degrees | Pipe-only. The pipe axis is fixed at a 45-degree incline, combining multiple positions in one test. |
Short Note: Position labels describe the joint, not where the welder stands. A welder can move around the work to access the joint while still welding in the labeled position.
The second character is either “G” for a groove weld or “F” for a fillet weld. Groove welds join members with a prepared edge and often require full penetration, while fillet welds join two surfaces at an angle, such as a T-joint. This distinction is crucial when comparing results for good and bad MIG welds or avoiding issues like the overlap welding defect.
With that in mind, 4F exists as an overhead fillet position. However, there is no standard 5F position. The 5 designation is reserved for fixed horizontal pipe, which in qualification and practice is evaluated as a groove configuration for the full circumferential weld. The work cannot be cleanly isolated to a “flat fillet” or “overhead fillet” in a fixed pipe test, so AWS does not list a standard 5F. This is why you will see 5G and 6G, but not 5F, on most certification sheets.
For plate, the position is determined by the face and axis of the joint on a flat workpiece. For pipe, the axis orientation drives the position entirely. A fixed horizontal pipe (5G) will require you to weld in the flat, vertical and overhead quadrants as you go around its circumference. A fixed pipe at 45 degrees (6G) is even more demanding, as no single quadrant can be avoided. These tubular positions are covered in AWS D10.12M/D10.12 and referenced in AWS D1.1/D1.1M:2020 Clause 10, Table 10.12, which lists 1G rotated, 2G, 5G, 6G, and combined 2G + 5G.
Quick Note: While AWS is the most common reference in North America, other codes can use slightly different definitions. Always confirm against the governing specification for your job, and never rely on a generic chart alone.
Keep it simple: 1 flat, 2 horizontal, 3 vertical, 4 overhead. For pipe, 5 is fixed horizontal, 6 is fixed at 45 degrees. Pair with G for groove or F for fillet. When in doubt, ask: is the joint a plate or a fixed pipe, what is its axis, and is it a groove or a fillet? That question will decode nearly any AWS position code in seconds.
For safety on the job, proper protective eyewear for welding is just as vital as knowing these codes. Mastering the system not only helps you read a qualification sheet, but it also sets the foundation for the techniques you will need to pass the tests ahead.
The four plate groove positions form the backbone of most shop qualifications. A groove weld joins two plates edge to edge, and the position number changes how gravity treats your molten pool. The terminology itself is standardized in AWS A3.0, and mastering these four means you can walk into almost any structural interview with confidence.
In 1G the plate lies horizontal and the weld face is roughly horizontal too. The molten pool sits flat, gravity holds it in the joint, and you can use a comfortable travel speed with a relaxed drag or slight push. That is exactly why it is the easiest of the four and the first test most welders practice. Per AWS D1.1 qualification tables, a 1G test qualifies production plate in the flat position.
Because the pool behaves predictably, 1G rewards high deposition. On stick, run settings like these 3/16 E7018 amperages for flat work; on wire, keep a steady push and let the arc do the filling. Heavy-deposition processes shine here — robotic submerged arc and large flux-cored wires run flat with little risk of the pool escaping the joint. Common defects are few but real: lack of fusion at the sidewalls from running too cold, undercut from excessive current, and slag entrapment on multi-pass stick fills when you skip cleaning between beads.
Quick Note: 1G is your deposition position. Bigger electrodes, hotter settings, and heavier passes all pay off here — save the delicate settings for overhead.
The 2G position stands the plate vertical with the joint axis running horizontal. The catch is immediate: gravity drags the pool down toward the lower plate, so it sags, overfills the bottom edge, and starves the top. You compensate with travel speed and work angle — tilt slightly up toward the upper plate so arc force pushes metal where you want it, and keep the arc tight.
Common defects in 2G are overlap (the pool rolls over the lower toe before it freezes), cold lap, and uneven reinforcement. On stick, hold a tight arc and a slight upward angle. Self-shielded flux-cored runs well here, but get your polarity for flux core right (DCEN for most self-shielded wires) or the arc destabilizes. On MIG, check your contact tip for wear, because a bad tip makes the arc wander and wrecks a horizontal bead. Note: “just going slower” is the wrong fix here — angle and heat input do the correcting.
3G stands the plate vertical with the joint running straight up and down. You can travel uphill or downhill, but AWS D1.1 requires vertical-up progression because it promotes better penetration and bead profile in thicker material. Uphill is slower and hotter — heat climbs ahead of the pool, preheating the joint and driving deep fusion. A 3G test qualifies the vertical position.
The classic method is a stringer root to lock in consistent fusion, then a weave fill that ties both walls together. Fill passes with E7018 benefit from a short arc and slight up-angle; too much weave overheats the plate. Weave too wide and you lose center penetration, travel too fast uphill and you get wagon tracks and lack of fusion. Short Note: pause at each toe long enough for the edge to fuse before you cross.
4G turns the plate until you weld from directly underneath. Now gravity is the enemy: the pool wants to drip and fall out of the joint. Success comes down to tight heat input and a short arc length, giving you a small, fast-freezing pool that solidifies before it can drop. Too much current makes the pool fluid; too long an arc invites burn-through.
Typical defects are icicles on the back side, burn-through, undercut, and incomplete fusion. Stick is often the most forgiving because slag helps support the bead. For TIG, your AC or DC choice for steel matters less than a tight arc and a small dab. With MIG, keep a short arc and steady travel — a lapse in rhythm shows instantly. Solid welding practice builds the muscle memory that makes this awkward angle manageable.
Quick Note — difficulty vs. deposition: 1G is easiest with the highest deposition; 2G is moderate as you fight sag; 3G is demanding because uphill heat control punishes sloppy travel; 4G is hardest, with overhead drip limiting speed and requiring tight arc control throughout.
Search for a welding position PDF and you’ll find pages of plate and pipe charts—then, tucked at the bottom, a second grid labeled 1F, 2F, 3F, 4F. That’s the fillet half of the story, and it’s the half people forget. Skip it, and you can pass a groove test yet still fail a shop-floor T-joint because the position changes the weld completely.
First, the distinction. A groove weld fills a prepared gap between two members—butt joints, full-penetration connections. A fillet weld is a triangular weld deposited in the corner where two surfaces meet. Fillet welds carry the everyday work of fabrication: T-joints, lap joints, and corner joints. Groove welds handle butt joints and full-penetration connections. Most structural steel you’ll touch is held together by fillets, which is exactly why the F-series positions matter so much.
Quick Note: A fillet position is defined by the axis and face of the weld—not simply by where the plates happen to sit. Two plates bolted to a table can still produce a 4F if the weld face points upward and you must work overhead.
Position qualifications follow a tested-position logic under AWS D1.1 Structural Welding Code—Steel. Using the Table 4.1-style framework, a 3F test qualifies 1F, 2F, and 3F fillet welding, while a 4F test qualifies 1F, 2F, and 4F. Note that 4F does not automatically hand you 3F—vertical still needs its own coupon. That’s why many fabricators qualify at 3G and 3F first, then add 4G and 4F to cover all plate positions. It’s a staircase, and each rung buys you specific ground.
| Test Position | Qualifies (Fillet) |
|---|---|
| 1F | 1F only |
| 2F | 1F, 2F |
| 3F | 1F, 2F, 3F |
| 4F | 1F, 2F, 4F |
| 3F + 4F | All fillet positions |
Horizontal fillet (2F) is where you’ll spend most working hours. Keep a consistent drag angle, watch the top toe for undercut, and avoid a long arc that lets the pool run ahead of the puddle. Steady travel and correct amperage matter more here than fancy manipulation—our guide on 3/16 E7018 amperage, polarity, and technique breaks down the settings that keep a 2F clean. Watch for overlap, the classic 2F defect where the pool rolls onto the vertical face instead of fusing.
Vertical fillet (3F) rewards a tight arc and controlled oscillation. A slight weave with short pauses at each toe drives penetration without letting the center sag. Beginners often rush downhill; on thicker steel, uphand gives better fusion.
Overhead fillet (4F) is the test that humbles people. You need higher amperage to fight gravity, a short arc to prevent the pool from dripping, and body positioning that keeps your head out of the fume plume—protective gear matters, as covered in our welding eyewear guide. Practice on scrap before you burn a qualification coupon.
Whatever the position, the fundamentals don’t change: consistent travel speed, correct electrode angle, and disciplined practice. Our complete guide to building real welding skills is a good companion when you’re stacking positions. Qualify smart, keep your continuity current, and those four little codes stop looking like phone generations—and start looking like a paycheck.
If plate positions test your technique, pipe positions test your nerve. Ask any pipeline hand which code makes a room go quiet, and they will say 6G. These two positions are the ones that separate a working welder from a certified pipe welder, and they are the reason companies pay a premium for the right name on a WPS.
Here is the part most people miss: pipe positions hinge on one rule—whether the pipe can turn. In the 1G pipe position you can rotate the pipe so the weld stays flat, which keeps gravity on your side. In 5G and 6G, the pipe is fixed. You do not move the work; you move around it, and your body, rod angle, and travel speed have to adapt to every inch of the circumference.
In 5G the pipe is fixed horizontally and cannot be rotated. That means you weld it in four zones around a single circumference:
Because the position changes as you walk around the pipe, your electrode angle has to change too. The rod or torch that works at the crown will fail at the root. A structured welding practice routine is what teaches that continuous adjustment. On a GMAW root, contact tip condition and stick-out become critical because a worn tip throws off the arc exactly when you need control most.
Quick Note: In 5G, the pipe stays put but the position does not—overhead, vertical, and flat all appear in one joint. Practice rotating your body and rod angle as one motion, not two separate steps.
In 6G the pipe axis is inclined at 45 degrees and cannot be rotated. This is the most demanding of all positions because it combines everything at once: you weld overhead at the bottom, vertical on the sides, and flat at the top, but now across the slant of the pipe. There is no comfortable zone. Every angle from 0 to 360 degrees shows up, and the welder must transition between them smoothly.
That difficulty is exactly why 6G is the most widely recognized advanced test position. It is the standard benchmark on pipeline and process piping work, and passing it in a single coupon tells an employer everything they need to know about your hand skills.
Qualification follows a simple logic in ASME Section IX and AWS D1.1: the harder the test, the broader the coverage.
So if you only have time and money for one pipe test, 6G gives you the most return. It is the certification that opens pipeline gates and heavy industrial work in a way no plate test can.
Pipeline work is not certified on a shop hunch. For steel pipeline welding, federal rules under 49 CFR 192.229 require welders to be qualified under API Standard 1104 or ASME Section IX. Those standards define the position designations, the coupon tests, and the ranges of qualification that a 6G pass carries.
ASME Section IX lays out the variables and qualification limits, including forms like QW-484 that document a welder’s qualified positions. AWS D1.1 mirrors the same logic for structural steel. Safety oversight comes alongside—OSHA and NIOSH both flag the fume and burn hazards that climb when you are welding overhead and in confined pipeline spaces.
Supply and demand does the talking here. Far fewer welders can pass a fixed-pipe 6G test, and the industries that need them cannot substitute:
These are high-consequence joints. A failed root in a live pipeline is not a rework ticket—it is a safety and environmental event. Employers pay for the welder whose qualification sheet removes that risk.
Short Note: 6G does not make you a better welder by itself; it certifies that you already are. Build the fundamentals first, then take the test that expands your range.
Mastering 5G and 6G is the pivot point in a welding career. Get comfortable overhead, learn to read the puddle as the position changes around a fixed pipe, and the 6G ticket will carry you into the industries where the work—and the pay—rewards real skill.
If you downloaded a position chart and still felt lost, the problem usually isn’t the numbers—it’s that you grabbed the wrong document. Welding position data lives inside several different PDF types, and each one answers a different question. Here’s how to decode the ones you’ll actually encounter on the job. Whether you’re a welder checking your own tickets or a supervisor verifying a crew’s qualifications, knowing which document to open first saves time and prevents costly mistakes.
A position code alone tells you almost nothing. A qualification is a package, and these are the fields that define its true limits. Miss one and you can accidentally weld outside your qualification:
| Field | What It Tells You |
|---|---|
| Welding position | Which of the 1G–6G codes the welder or procedure was tested in. |
| Vertical progression | Uphill or downhill—this can be a separate essential variable. |
| Backing | With or without backing; some codes treat backing as essential. |
| Thickness qualified | The metal thickness range the qualification covers. |
| Diameter qualified | The pipe or tube OD range your test coupon qualifies you for. |
| Current & polarity | Process, amperage range, and DCEN/DCEP/AC. Polarity is a frequent essential variable—see our guide to TIG welding polarity and DCEN vs DCEP for flux core. |
An essential variable is any change big enough to affect the mechanical properties of the weld. Change one without requalifying and your paperwork is void—even if the weld looks perfect. Typical essentials include position, vertical progression, backing, base metal thickness, and current/polarity.
The magic column is Range Qualified. It answers the only question that matters on-site: “What am I actually allowed to weld?” A coupon tested in 6G, for example, typically qualifies a welder for all positions, while a 1G test qualifies only flat. This is why welders chase 6G—its range is the widest. Treat that column like a boundary line you never cross: if the job falls outside your range, you need a new test, not a hopeful interpretation.
Quick Note: Qualification scope is code-specific. AWS D1.1, ASME Section IX, and API 1104 all define positions, essential variables, and range-qualified rules differently. A 3G qualification under one code doesn’t automatically transfer to another.
Note: Keep your WPS/PQR paperwork matched to the exact code edition and project specification. Mixing editions is one of the most common audit failures we see in shops planning their welding facilities and documentation systems.
The WPS (Welding Procedure Specification) is the instruction sheet—it tells the welder how to weld. The PQR (Procedure Qualification Record) is the proof—the record of the test that validated the WPS. The welder’s own WPQ (performance qualification) proves the individual can deposit sound welds in a given position. Three documents, three jobs. In an audit, inspectors ask for all three, so keep them filed together and cross-referenced.
Position charts get scraped and re-uploaded constantly, often stripped of their edition year. A 2010 chart may show limits that a newer edition has changed. Before you trust any PDF:
Getting the paperwork right is half the skill. The other half is the hood time—so once your qualification is clear, build the muscle memory with deliberate welding practice across every position you’re signed off for.
Bottom line: a position code is only as strong as the document behind it. Read the fields, respect the essential variables, and always check the edition year before you trust the chart.
Passing a 6G test does not mean you can weld anything, anywhere. It means you are qualified within a specific scope — a defined set of positions, thicknesses, diameters, and joint types. Understanding that scope is what separates a welder who reads their certificate from one who just frames it.
When you test in a given position, the code does not simply say “you can weld 3G now.” It builds a package. Your test position, the joint type (groove or fillet), the material thickness, and — for pipe — the diameter all combine into a qualification range. Change any of those beyond the code’s limits and you need a new test or a requalification.
This is why your qualification record matters as much as your hands. If you are preparing for a test, treat it like the training covered in our guide to welding practice: practice the exact position, thickness, and joint you will be tested on, not just the one that feels comfortable.
Codes like AWS D1.1 and ASME BPVC Section IX publish “stacking” tables that map a test position to the production positions it covers. Under AWS D1.1, the classic Table 4.1-style chart shows how a single groove test can qualify a welder for multiple production positions. A simplified version looks like this:
| Test Position (Groove) | Qualifies Groove CJP | Qualifies Groove PJP | Qualifies Fillet |
|---|---|---|---|
| 1G (flat) | 1G | 1G, 2G | 1F, 2F |
| 2G (horizontal) | 2G | 1G, 2G | 1F, 2F |
| 3G (vertical) | 1G, 2G, 3G | 1G, 2G, 3G | 1F, 2F, 3F |
| 4G (overhead) | 1G, 2G, 3G, 4G | 1G, 2G, 3G, 4G | 1F, 2F, 3F, 4F |
Short note: Positions do not necessarily “stack” the way beginners assume. A 3G test covers flat, horizontal, and vertical for the joint type tested — but exact coverage depends on the code edition and the specific table in force. Always confirm against the governing standard.
Two rules trip up almost every new welder:
This distinction explains why employers press candidates on groove experience — it is the broader, more valuable credential. For the fundamentals behind each process you might test in, see our explainer on using a wire welder.
Test thickness sets qualified thickness. In practice, a relatively thin test plate often qualifies you for a generous upper range, while testing on very thick material narrows what you can weld at the low end. The ASME BPVC Section IX qualification ranges (see QW-484) formalize this logic for procedure qualification, and welder-performance ranges follow similar principles.
For pipe, the diameter you test on sets the diameters you may weld. Test on a smaller-diameter pipe and you typically qualify for everything at or above that size — test on large pipe and smaller diameters may fall outside your scope. The size and thickness of the test pipe determine the size and thickness of production pipe you are qualified to weld.
Qualifications have a shelf life. For AWS D1.1, ASME IX, and API 1104, a welder’s qualification typically expires after 6 months unless continuity is demonstrated — meaning you have welded with the process in production within that window. Let that lapse and you may need to retest.
Certification itself comes from several routes: third-party test labs, welding schools issuing performance qualification records, or employer-based certification where your shop certifies you under its own quality program. OSHA’s welding guidance and NIOSH resources are useful background on safe practice, but they do not replace code-based qualification. Whichever path you take, keep documentation of your test position, thickness, diameter, and process.
Quick Note: Always verify your scope against the specific code governing the job — AWS D1.1, ASME IX, API 1104, and others differ in their tables and limits. A qualification that satisfies one code may not satisfy another, even for the same welder.
Get this right and you walk into that interview knowing exactly what you can and cannot sign your name to.
Every welding position demands its own rhythm. The welder who looks flawless on a flat bench can fall apart the moment the axis tilts, because the amperage, work angle, and travel speed that worked in one orientation suddenly fight gravity. The fix isn’t talent—it’s adapting technique, knowing the traps, and drilling the corrections until they’re automatic.
The 1G and 1F positions are the money-makers. Gravity pulls molten metal into the joint instead of away from it, so you can run higher amperage, wider beads, and faster travel—delivering high deposition rates with consistent penetration. Flat is exactly why heavy fabrication leans on automated, high-deposition processes whenever a part can physically be positioned.
Horizontal welding (2G and 2F) is a balancing act. The pool wants to sag off the lower plate while the arc cuts into the upper plate edge, and that’s precisely where undercut appears. Hold a slight downhill work angle toward the upper plate, keep travel speed steady, and let the puddle freeze before it drips. If the top edge washes out while the bottom passes sink, you’re running too hot or moving too slowly.
Quick Note: Gravity is the defining variable across every position. The more the weld axis departs from flat, the more the pool must be mechanically controlled with arc force, angle, and travel speed—not luck.
Vertical up (3G and 3F) builds the deep, convex-profile joints that structural codes favor, but the pool is always trying to outrun you. Short arcs, tight stringers for the root, and a gentle upward push keep metal stacked instead of running away. Vertical down is faster on thin sheet but rarely satisfies a procedure that specifies uphill progression—check the WPS before you commit.
Overhead (4G and 4F) is where heat discipline earns its keep. Running too much heat in the 4G/4F positions causes the pool to drop and produces excessive reinforcement or burn-through on the plate above your head. Trim roughly 10–15% off your flat amperage, shorten the arc, and favor stringers over wide weaves. Correct polarity supports this—our guides to DCEN, DCEP, and AC and to flux-core polarity show how the wrong setting sabotages penetration in any orientation.
Pipe positions test everything at once. In 5G the pipe is fixed vertically and you walk the arc around it; in 6G it’s inclined at 45°, and the uphill, overhead, and downhill sections all show up on the radiograph. Losing position discipline on a 5G root, or letting travel speed drift on a 6G, produces defects that AWS D1.1 and ASME Section IX acceptance criteria will not forgive. Stringers for the root, steady rhythm, and interpass cleaning keep you out of trouble.
| Position | Main Challenge | Practical Fix |
|---|---|---|
| 1G / 1F | Complacency | Use the speed, verify fusion |
| 2G / 2F | Undercut uphill, sag downhill | Steady angle and travel |
| 3G / 3F | Pool outruns you | Short arc, stringers, uphill |
| 4G / 4F | Pool drops, burn-through | Lower amps, short arc |
| 5G / 6G | Position discipline collapse | Lock stance, constant rhythm |
The solutions repeat across every code: adjust amperage per position, hold travel speed steady, favor stringers for root passes, confirm polarity for your process, and practice each orientation on scrap before it counts. That deliberate repetition—covered in our welding practice guide—is what converts position knowledge into muscle memory.
Note: Positions also affect fume exposure and PPE needs. Overhead (4G/4F) drops fume and spatter straight into your breathing zone, so forced ventilation and a respirator matter far more than in flat work. Review OSHA welding guidance and NIOSH fume resources, and match your eye protection to the position’s spatter path. Physical access also varies sharply—tight 6G pipe restricts stance and travel, cutting productivity—so plan fixtures and ventilation per position.
You’ve now walked the whole map: 1G through 4G on plate, 1F through 4F on fillets, and the pipe positions 5G and 6G. What’s left is turning understanding into paper, paper into practice, and practice into a qualification card.
Start with the standards themselves. The authoritative home for position language is AWS A3.0M/A3.0:2025, the current 14th edition of Standard Welding Terms and Definitions. For structural steel, check the code that governs the job: AWS D1.1:2025 includes updated qualification requirements and inspection criteria compared with the 2020 edition. Pipe welders trace AWS B2.1 for procedure and performance qualification, while tube work references D10.12.
ASME Section IX forms are free to view as well. Form QW-484A and QW-484B show exactly how position and diameter ranges get recorded on a Welder Performance Qualification—the paperwork your certification ultimately rests on.
Open educational resources offer a lawful shortcut. Free welding textbooks hosted on Pressbooks reproduce AWS position definitions and qualification tables for study purposes, so you can learn the system without buying a standard first. Treat them as a study aid, never a substitute for the real thing.
University extension programs and community college welding departments often publish free position handouts and lab manuals, and some are openly licensed. Government safety pages from OSHA and NIOSH are worth bookmarking too—not for position geometry, but for the ventilation, fume, and PPE rules that apply no matter which position you’re welding in.
Note: Editions change. AWS D1.1:2025 replaced D1.1:2020, and old position charts may not reflect current limits. Always download from the publisher, and match the edition to what your code and client require.
Be wary of “free” reuploads. Plenty of position charts on forums and file-sharing sites are outdated, incomplete, or quietly edited. A decade-old 1G diagram can teach the geometry yet miss modern limits on thickness, diameter, and backing. Stick to official AWS, ASME, OSHA, or .edu sources—and confirm the edition before you trust a single line.
Here’s a sequence that works for self-taught welders and trade students alike:
That order matters. Vertical and overhead positions expose travel-speed and heat-control problems quickly, and pipe positions demand the consistency that only supervised repetition builds.
Don’t rush the sequence. Many welders fail a 6G test because they skipped months of vertical-up plate work. Build the muscle memory on scrap first, treat every position as its own skill rather than a box to tick—and compare your practice beads against our guide to good and bad MIG welds to spot problems early.
Set yourself up properly before grinding away the hours. A safe, well-planned booth with good light makes position practice far more efficient; our guide to planning a welding shop covers layout, ventilation, and power. Pair your reps with our complete guide to welding practice so every pass has a purpose, and protect the eyes you depend on with the right protective eyewear for welding.
A last word on patience: certification bodies test to a specific code and edition, so a pass under one standard may not transfer directly to another. Confirm what your employer, union, or client accepts before you spend money on a test.
Position is more than a code on a résumé. It’s the difference between a weld that passes inspection and one that fails under load. Whether you’re chasing a 6G pipe ticket or simply want to read a WPS correctly, the six codes now tell a clear story: where the weld sits, how hard it is to make, and what it proves about your hands.
Stay safe and stay code-compliant. Wear your PPE, follow the WPS, and verify every specification against the current edition. Then get back under the hood. Every position you practice on scrap is one fewer surprise on the job—and one step closer to the certification that gets you hired. The chart is only the beginning; your hands write the rest.
The flat position, 1G for groove welds and 1F for fillet welds, is the easiest because gravity holds the molten pool in place and you can see the joint clearly. Most beginners and high-deposition production work start here.
In 5G the pipe is fixed horizontally, so you weld overhead, vertical, and flat around the circumference. In 6G the pipe is fixed at a 45-degree incline, which combines every orientation and is considered the most difficult test position.
Under most common codes, a 6G pipe qualification also qualifies you for all other pipe positions and all plate positions in both fillet and groove. Always confirm the exact scope against the governing code, because qualification ranges vary.
G stands for groove weld and F stands for fillet weld. So 3G is a vertical groove weld, while 3F is a vertical fillet weld—same orientation, different joint type.
The most reliable sources are official documents from the American Welding Society (such as A3.0, D1.1, B2.1, and D10.12) and ASME Section IX forms like QW-484A and QW-484B. Many open educational textbooks also reproduce position charts for study, but always verify the edition year.
Fillet positions cover 1F through 4F. A fixed horizontal pipe fillet essentially follows the same logic as a groove configuration, so the 5 designation is applied to the 5G pipe position rather than a standard 5F fillet.
Under codes such as AWS D1.1, ASME Section IX, and API 1104, a welder’s qualification commonly expires in six months unless continuity of work with the process is demonstrated. Continuity can extend it indefinitely in many cases.
A practical path is to qualify at 3G and 3F first for plate work, then add 4G and 4F to cover all plate positions. Once your plate technique is consistent, pursue pipe positions 5G and 6G.