When your application demands chemical resistance, high-temperature performance, and code-compliant fabrication, custom stainless steel fabrication is the right call. At Boardman, we’ve been delivering stainless steel fabrication services to refineries, chemical plants, and gas processors since 1910. We build every project to spec, document it, and back it with our ASME-certified shop.

Stainless steel is the material of choice when corrosive media, high heat, and structural integrity can’t be compromised. It holds up against chlorides, sulfuric acid, ammonia, naphthenic acid, polythionic acid, hydrogen chloride, phenols, and more where other metals fail. Austenitic grades cover most corrosive and high-temperature applications, and duplex is the right call when you can’t trade off strength for corrosion resistance.
Stainless steel introduces risks that carbon steel work doesn’t. Here’s what matters and how we address each one:
Our Oklahoma City facility has fabricated industrial stainless steel equipment across a wide range of types, sizes, and service conditions. Here’s a sample of what we regularly build:
We invite you to view a few of our past projects for yourself, some of which have been fabricated with stainless steel. You’ll find that our services include heavy plate fabrication, custom fabrication, trayed towers and columns, and ASME pressure vessels. Then give us a call to see how we can help you.
When your fabricator handles the full range of industrial metals, you don’t have to restart the vendor search every time specs change. At Boardman, we also work with:
Our stainless steel fabrication services cover critical applications in cryogenic, gas processing, chemical, and petrochemical service. We work with grades 304, 316, 310, 317, 321, 347, and 410. All weld procedures are qualified to ASME Section IX and ASME Section VIII. Welding processes include SAW, FCAW, SMAW, GTAW, GMAW, and ESW for Corrosion Resistant Overlay (CRO).
Stainless steel grade selection drives corrosion performance, temperature limits, and long-term cost. Use this table as a starting point, then talk to our team about your specific service conditions.
| Grade | Key Properties | Best For |
|---|---|---|
| 304/304L | Good corrosion resistance, dual-cert capable | General industrial, moderate chemical service |
| 316/316L | Added molybdenum, chloride resistance, low carbon | Chemical processing, stainless steel tank fabrication, chloride environments |
| 317/317L | Higher Mo, Ni, Cr than 316 | Highly corrosive chemical environments |
| 321 | Titanium-stabilized, resists polythionic acid SCC | Refinery and chemical service at 1000°F to 1600°F |
| 347 | Columbium-stabilized, intergranular corrosion resistance | Oxidizing, aqueous, low-temperature service |
| 304H | Higher carbon, elevated-temp strength to 1500°F | High-temperature mechanical service |
| 309 | Heat and oxidation resistance to 1900°F | Sulfur-bearing, high-temperature environments |
| 310 | Superior oxidation resistance at very high temperatures | Extreme heat service |
| 410/410S | Ferritic, ductile, weld-friendly | Formability and weld integrity applications |

Boardman has been a trusted corrosion-resistant fabrication partner since 1910. From our 140,000 ft² facility in Oklahoma City, we build custom pressure vessels, towers, columns, and heavy plate assemblies for refining, chemical, petrochemical, gas processing, and cryogenic industries. You set the level of involvement. We adjust to how you work.
Boardman fabricates stainless steel equipment for customers nationwide. Field service teams most frequently serve Oklahoma, Texas, New Mexico, Colorado, Arkansas, Missouri, and Kansas. Outside that footprint? No problem! We’ll still come to you. Contact us to discuss your project.
Companies across the chemical, energy, and manufacturing sectors trust Boardman Inc. for their most complex stainless steel fabrication needs. Our commitment to quality, precision, and compliance has earned us long-standing partnerships with industry leaders—and the certifications to prove it.
Certifications Include:




Join the many companies that rely on our certified custom stainless steel fabrication services to ensure safety, compliance, and performance.

Your project deserves more than a shop that takes the order and goes quiet. When you work with Boardman, you get stewardship: a team that stays engaged from quote through delivery and field services, communicates proactively, and adjusts to your level of involvement. You bring the spec. We bring the accountability. That’s been our standard since 1910. Contact us today to get a quote.
These are the questions engineers and procurement teams ask us most about stainless steel fabrication. Don’t see yours? Contact us, and we’ll answer it directly.
It’s the process of cutting, forming, welding, and assembling stainless steel into finished industrial components, built to ASME Section VIII and Section IX qualified procedures at Boardman.
316L is the most common starting point. For more aggressive service, 317L or 321 may be the better fit depending on your temperature and chemistry.
316L contains molybdenum for better resistance to chloride pitting. When chlorides are in your process stream, 316L is the right call.
Yes. Boardman uses GTAW, SMAW, GMAW, SAW, and FCAW, all qualified to ASME Section IX.
Boardman uses dedicated tooling and work areas for stainless fabrication to prevent cross-contamination with carbon steel. Passivation may also be specified.
VT, PT, RT, and UT, depending on code and joint classification. All NDE records are included in your ASME data book.
Look for ASME certification, in-house weld procedure qualification, and a track record in your industry. Boardman builds all work in-house.
Design code, pressure and temperature, material spec, dimensions, nozzle schedule, NDE requirements, and delivery date. Contact us, and we’ll walk through it.
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