Carbon steel welding in Vista, CA
When you need 130 of the same steel part, the hard part isn’t the first weld. It’s making the last one match it. We MIG and TIG weld carbon steel assemblies in fixtures, to AWS D1.1 when your job calls for it, with a ship date you can plan around.

What we weld in carbon steel.
Steel assemblies built to your drawing and checked against it.
Posts and columns
Pipe or tube welded to base and cap plates, like the 130-piece carbon steel post run on this page.
Brackets, frames and supports
Steel weldments built to your drawing, from one prototype through a production run.
Pipe and fittings
Shop pipe work such as a carbon steel return bend welded to ASME Section IX. For process piping, see pipe spool welding.
Code work
AWS D1.1 structural steel, D1.3 sheet steel, D1.4 reinforcing steel and D1.8 seismic, when the job calls for it.
What to put on a steel weldment drawing.
- Weld symbols and sizes.
- We weld to what the drawing calls for. If a symbol is missing or unclear, we ask before we quote.
- The code, if there is one.
- AWS D1.1 for structural steel, D1.3 for sheet steel, D1.4 for reinforcing steel, D1.8 for seismic. Other codes on request.
- The finish.
- Powder coat and post-weld machining, done in-house or through our finishing partners and delivered as one job.
- The quantity plan.
- One prototype now and 200 later? Say so. The fixture built for part one is what keeps the run matching it.
Carbon steel capabilities.
Processes, codes, testing and what ships with your parts.
| Material | Carbon steel |
|---|---|
| Processes | MIG (GMAW) · TIG (GTAW) |
| Codes | AWS D1.1 (structural steel) · D1.3 (sheet steel) · D1.4 (reinforcing steel) · D1.8 (seismic) · ASME Section IX · ASME B31.3Other codes on request. We qualify to what your job calls for. |
| Procedures | WPS/PQR developed and qualified · welder qualification records |
| Fixtures | Welded steel, 3D-printed or hybrid, built before welding so every part sets up the same |
| Inspection | First part checked against your drawing before the run · visual weld inspection |
| Testing | In-house: visual (VT), bend tests, dye penetrant (PT)X-ray (RT) and ultrasonic (UT) through an independent lab when the job calls for it. |
| Paperwork | Material certs (MTRs) · weld inspection reports · test results |
| Finishing | Powder coat · post-weld machiningIn-house or through our finishing partners. |
| Runs | Single prototypes through productionExample: a 130-piece carbon steel post run. |
| Quoting | Send the drawing (PDF, STEP or DXF), quantity and need-by date. Get a written price and a ship date.NDA on request. Expedited runs when you need them. One point of contact from quote to delivery. |
How a steel job runs.
From your drawing to a full run that matches part one.
- 01
Send the drawing
PDF, STEP or DXF, plus the quantity and the date you need the parts. NDA on request.
- 02
Get a price and a ship date
In writing. If material pricing holds up the quote, we tell you right away. Expedited runs when you need them.
- 03
First part checked to print
Part one is welded in its fixture and checked against your drawing before the run starts.
- 04
The run
Every part sets up in the same fixture. On a 130-piece run, that’s what keeps the last post matching the first.
- 05
Inspected, packed, documented
Visual weld inspection, then packed and shipped with material certs, weld inspection reports and test results when your job needs them.
Carbon steel work from our shop.
Every part shown was welded by Jones.


Carbon steel welding questions.
Do you weld to AWS D1.1?
Yes. AWS D1.1 is the structural welding code for steel. When your job calls for it, we develop and qualify the WPS/PQR and qualify the welders. We also work to D1.3 (sheet steel), D1.4 (reinforcing steel) and D1.8 (seismic).
MIG or TIG for carbon steel?
We use both. The joint, the material thickness, the finish and the code decide which one the procedure calls for.
Can you handle production runs?
Yes. We build single prototypes through production runs. One documented example is a 130-piece carbon steel post run, built in a fixture.
Can you powder coat the parts?
Yes. Powder coat and post-weld machining are handled in-house or through our finishing partners, so finished parts come back as one job.
What do you need for a quote?
Your drawing as a PDF, STEP or DXF, the quantity and the date you need the parts. You get a written price and a ship date. If material pricing holds up the quote, we tell you right away. NDA on request.
Related
- Prototype to productionFirst part checked to print, then the run.
- Weld fixtures and jigsWelded steel, 3D-printed or hybrid, built before welding.
- Pipe spool weldingASME B31.3 spools, ASME Section IX procedures, MTRs.
- Weld procedures and testingWPS/PQR, welder qualification, VT, bend and PT testing.
- Weld in-houseJones Welding Systems, our newest service: cell, fixtures, procedure and operator training.
- Jones Welding & ManufacturingHomepage: parts built in our shop, or welding set up in yours.
Send us a drawing.
Send the drawing, the quantity and the date you need the parts. You’ll get a written price and a ship date.
1485 Poinsettia Ave, Suite 106
Vista, CA 92081
Shop visits and supplier audits by appointment