STAINLESS STEEL FABRICATION SERVICES
Stainless steel fabrication demands specialized welding procedures, contamination controls, and material-specific handling. JMC Fabrication delivers NAVSEA and AWS certified stainless steel work for marine, oil and gas, and specialty industrial applications — with the documentation to back it up.
Stainless steel's corrosion resistance comes from its chromium content — a minimum of 10.5% chromium forms a passive oxide layer that protects the base metal in aggressive environments. That makes stainless the right choice for:
- Marine saltwater exposure and submerged applications
- Chemical contact and corrosive process streams
- Sour gas and high-chloride oil and gas environments
- NAVSEA and marine specification applications that require it
- Long service life in environments where carbon steel coating would degrade
The cost premium is real — stainless is significantly more expensive than carbon steel in raw material and welding labor. In the right environment, it is the lower-cost option over the life of the asset.
- Pipe spools and process piping assemblies in 304 and 316 stainless
- HVAC and specialty duct for food service and chemical environments
- Custom structural components and specialty assemblies
- Flanges, fittings, and custom stainless configurations
- 304 stainless steel: the most common grade — general corrosion resistance for most applications
- 316 stainless steel: enhanced corrosion resistance through molybdenum addition — the standard for marine and chloride-exposed applications
- Additional grades available on request; contact JMC to confirm for your application
Stainless steel welding requires tighter procedure controls than carbon steel. JMC maintains:
- AWS certified stainless steel welding procedures
- NAVSEA certified welding for marine-specification work
- Material segregation practices to prevent carbon contamination on stainless work
- Documentation packages per project specification, including weld logs and NDE records
- Marine and shipyard piping (NAVSEA certified — saltwater and marine environments)
- Oil and gas (sour service, high-chloride, and offshore installations)
- Chemical and process piping
- Food service and specialty high-purity systems
Specify stainless when: saltwater exposure, chemical service, NAVSEA spec, or long-service-life requirements dictate it. Specify carbon when: structural loads, dry environments, or cost constraints apply. JMC fabricates in both — we can help you make the call.
- May 13, 2026Carbon Steel vs. Stainless Steel Fabrication: Choosing the Right Material for Marine and Industrial ApplicationsHow carbon and stainless steel compare on corrosion, weldability, and cost, and how to choose between them for marine, oil and gas, and commercial HVAC fabrication.
- May 8, 2026Spooled Piping vs. Stick-Built Piping: When Each Makes Sense for Your ProjectA practical framework for when shop-fabricated pipe spools beat stick-built field piping, and the scenarios where field assembly is still the right call.
Working on a project that combines services? Explore related capabilities at JMC:
- Carbon Steel FabricationCarbon steel fabrication for pipe spools, HVAC duct, structural components, and custom weldments. ASTM A36, A53, A106. AWS certified welding from Pascagoula, MS.
- Pipe Spool FabricationShop-fabricated pipe spools for oil & gas, marine, and industrial applications. AWS and NAVSEA certified welding from Pascagoula, MS. Carbon and stainless steel.
- Custom Metal FabricationCustom metalwork from concept through delivery — pump skids, penetrations, flanges, subbases, copper assemblies. AWS and NAVSEA certified. 50,000 sq ft shop in Pascagoula, MS.
- All Fabrication ServicesOverview of JMC's full fabrication capabilities, including HVAC duct, pipe spools, and custom metalwork.
What stainless steel grades does JMC Fabrication work with?
JMC works with 304 and 316 stainless steel. 304 covers most general corrosion applications; 316 is preferred for marine, high-chloride, and chemical environments due to its molybdenum content. Contact JMC to confirm availability for specialty grades.
When should I choose stainless steel over carbon steel for fabrication?
Specify stainless steel when the application involves saltwater or marine exposure, chemical contact, sour gas service, or where NAVSEA or food service standards require it. For structural, dry, or cost-constrained applications, carbon steel is typically the better choice.
Is JMC Fabrication certified to weld stainless steel for marine applications?
Yes. JMC holds NAVSEA welding certification, which qualifies our welders for stainless steel work on marine and Navy specification projects. We also maintain AWS welding certification.
Does JMC maintain material segregation for stainless steel fabrication?
Yes. JMC follows material segregation practices for stainless work to prevent carbon contamination — a key quality requirement for buyers who need clean stainless welds.