A pipefitter-welder is a pipefitter who also welds — one person who measures, cuts, fits and aligns the pipe, then makes the welds on the same system.
The combination is what job boards and contractors call the combo role, inside a trade BLS places mostly in manufacturing, commercial, and industrial settings.
This page covers what the role involves, the 6G weld test behind pipe-welding qualifications, and what federal pay data does and does not show about the premium.
What is a pipefitter-welder?
A pipefitter-welder is a pipefitter who also makes the welds on the systems they build.
On a welded piping job that means the same person can read the drawings, measure and cut the pipe, fit and align the joints, and then weld them.
BLS describes pipefitters and steamfitters as installing and maintaining pipes that may carry chemicals, acids, and gases, mostly in manufacturing, commercial, and industrial settings.
Federally, there is no separate pipefitter-welder occupation to measure.
O*NET's combined occupation — 47-2152.00, Plumbers, Pipefitters, and Steamfitters — lists both Pipefitter and Pipe Welder among its sample job titles, alongside Plumber.
The titles the trade uses day to day — fitter, welder, combo — all fold into that one federal category.
The word combo is doing real work in the title.
Contractors and job boards use combo welder and pipefitter-welder for the same arrangement: one worker who fits and welds.
The alternative is a split crew, where fitters build the joints and welders only weld them — the difference between the two crafts, and where this role sits between them, is the next section.
If you are newer to the trade itself, start with our pipefitter career guide; this page assumes the fitting half and covers what the welding half adds.
Fitting vs welding tasks
The fitting half of the job is layout and assembly.
A fitter works from isometric drawings and specs: measuring and cutting the pipe, preparing the ends, aligning each joint so the assembled run matches the drawing, and tacking it in place.
The measure of good fit-up is that the system goes together the way the drawing says it should — with the right dimensions, slopes and alignments.
The welding half is joining what the fitting half assembled.
The welds are what hold a welded piping system together.
On the job the two tasks are sequential, not separate: fitting comes first, welding follows on the same joint.
That sequence is the practical case for the combination in one worker.
Poor fit-up shows up in the weld — a joint that is misaligned or gapped makes the weld's job harder no matter who is holding the stinger.
A worker who both fits and welds can take a spool from drawing to finished weld without handing it off, and can correct the fit before it becomes a weld problem.
Certifications needed
The welding half of the role is governed by weld qualification tests.
The benchmark test for pipe work is the 6G.
As secondary sources describe the standard test, a 6G pipe weld test is made with the pipe fixed at a 45-degree incline and not rotated, and under ASME Section IX a 6G groove-weld qualification generally qualifies all positions.
Those position rules come from ASME Section IX, a paywalled code, so treat the description as something to confirm rather than a rule to rely on — the callout below says how.
What "qualified" means in practice: you pass the test for the joint configurations, positions and welding procedures the work in front of you uses.
A passing 6G test is the common target for pipe work, but the tests a given contractor needs you to hold are the contractor's to name — ask before you train or pay for a test.
The weld test is also a separate layer from licensing.
Any state or local licence or registration a job site requires is its own question, set locally — how entry rules and licensing work for the trade is covered in the pipefitter career guide.
Confirm the 6G rules before you rely on them
Pay premium
Start with what federal data offers — and what it does not.
BLS publishes no wage for pipefitter-welders: OEWS publishes pay only for the combined category Plumbers, Pipefitters, and Steamfitters (SOC 47-2152), with none of the separate trades inside it broken out.
That also means no federal plumber-vs-pipefitter pay comparison is possible, let alone one for the combo role.
What you can benchmark honestly are the two categories adjacent to the role, both medians from OEWS May 2025 data, released by BLS on May 15, 2026:
- Plumbers, Pipefitters, and Steamfitters (SOC 47-2152): median $30.67/hour or $63,800/year. This category also includes plumbers and steamfitters, so it is broader than the pipe side of this role.
- Welders, Cutters, Solderers, and Brazers (SOC 51-4121): median $25.84/hour or $53,750/year. This category covers welding across industries whose largest employers are in manufacturing — fabricated metal and machinery manufacturing — so it is broader than pipe welding.
The pipe-side median is higher, but because both categories are broader than the combo role, the gap does not measure what pipe welding or the combination pays.
Neither number isolates pipefitter-welders, no published statistic captures what the combo role earns over a fitter who does not weld, and our research found no verified percentage premium to quote — so be skeptical of any premium figure you are handed, in either direction.
One more reading rule: BLS-measured wages exclude overtime pay, shift differentials and nonproduction bonuses, so workers who put in heavy overtime can earn well beyond the OEWS figures.
A lot of the pay stories you hear in the field live in that gap.
For the tables behind these numbers, see our pipefitter salary page.
How to add welding to fitting
If you are already in the trade on the fitting side, the welding half is added in two steps: training, then a passing test.
Formal pipefitting training is organized — NCCER's pipefitting curriculum runs four levels, Level 1 through Level 4 — and where weld training and weld testing sit inside a given program varies, so ask the program or training center directly.
The entry routes into the trade, including the apprenticeship, are laid out in our pipefitter apprenticeship and entry guide; what follows is the weld-specific part.
Ask which tests your employer requires
Before you pay for any course or test, get the exact weld tests and procedures your contractor or program needs you to hold. That answer decides what you train for — including whether the 6G is the right target for the work you will do.Train on the joint the test uses
Time on the exact joint configuration, position and procedure the test runs beats generic practice hours. Ask your program, training center or employer to set you up on the configuration you will be tested on.Take and pass the test
Book through the process your employer or test facility uses. Passing qualifies you under that procedure — which is what lets a contractor put you on welded work.Keep your qualification paperwork
Records of the tests you passed are what document what you are qualified to weld. Keep copies; they are what you show when a contractor staffs weld work.
Career information, not legal or licensing advice. Weld qualifications are set by employers, test facilities and the applicable code, and licensing is set by state and local regulators. Confirm the requirements that apply to your job and your state before you act on them.