ANSWERS ABOUT JMC FABRICATION
Common questions about JMC Fabrication's certifications, services, materials, lead times, and Gulf Coast service area. Don't see your question? Contact JMC directly and our team will respond.
Common questions about JMC Fabrication, our certifications, and how to work with us.
Where is JMC Fabrication located?
JMC Fabrication is headquartered at 4502 Chicot Rd, Pascagoula, MS 39581 — the industrial heart of the Mississippi Gulf Coast. Our 50,000 sq ft shop sits within the same corridor as Ingalls Shipbuilding and the Port of Pascagoula, with delivery reach across Mississippi, Alabama, Louisiana, and the Southeast.
What certifications does JMC Fabrication hold?
JMC holds AWS welder certifications, NAVSEA welding certification for marine and Navy specification work, and produces HVAC duct in compliance with SMACNA standards. We provide material test reports (MTRs), weld logs, NDE documentation, and full project closeout packages per project specification.
How long has JMC Fabrication been in business?
JMC Fabrication has been operating from Pascagoula, MS since 2002 — over two decades of serving commercial, marine, and industrial clients across the Gulf Coast.
What are JMC Fabrication's business hours?
JMC's shop is open Monday through Friday, 7:00 AM to 3:30 PM Central. The shop is closed Saturday and Sunday. RFQs and inquiries submitted outside business hours are reviewed the next business day.
How do I submit a request for quote (RFQ) to JMC?
Call (228) 762-3156, email info@jmcfab.com, or submit the contact form at jmcfab.com/contact. Include your project scope, applicable specifications, drawing or isometric packages, target schedule, and delivery location. JMC's engineering team reviews submitted packages and responds with a quote, fabricability notes, or RFIs as needed.
What is JMC's typical lead time for fabrication?
Lead time depends on project scope, material availability, and current shop loading. Pipe spools, custom fabrication, and commercial duct packages all run on different schedules. Contact JMC with your project scope and target schedule and we'll confirm available lead time before quoting.
Does JMC ship outside the Gulf Coast?
Yes. JMC's primary delivery reach covers Mississippi, Alabama, and Louisiana, with Southeast and nationwide shipping available for larger commercial and EPC accounts. Freight economics favor regional sourcing on bulky products like HVAC duct, but pipe spools and custom fabrication ship efficiently across longer distances.
What size projects does JMC Fabrication handle?
JMC's 50,000 sq ft Pascagoula facility is sized for large commercial duct packages, EPC pipe spool runs, and multi-phase industrial projects. The shop also handles smaller custom fabrication, shop-level repair work, and one-off assemblies. Contact JMC with your project scope and we'll confirm whether the fit is right.
Can JMC review my drawings or engineering before fabrication?
Yes. JMC's in-house engineering team performs isometric review, Revit BIM coordination, shop drawing generation, weld mapping, and clash detection against customer-supplied models. We flag fabricability issues before production and provide RFI support throughout the project.
What industries does JMC Fabrication serve?
JMC serves three core industries: commercial construction (HVAC duct, structural, custom metalwork for GCs and mechanical contractors), marine (NAVSEA and AWS certified work for shipyards and offshore clients), and oil & gas (AWS-certified pipe spools and custom fabrication for EPC contractors and industrial facilities).
Questions about specific fabrication services — duct, pipe spools, custom metal, and material-specific capabilities.
What is pipe spool fabrication?
Pipe spool fabrication is the shop-based pre-assembly of pipe sections, fittings, flanges, and valves built from isometric drawings. Spools arrive at the job site ready for field connection — reducing field labor, improving quality control, and speeding project schedules.
What materials does JMC use for pipe spool fabrication?
JMC fabricates pipe spools in carbon steel and stainless steel. Contact us to confirm additional material grades available for your application.
What industries does JMC serve with pipe spool fabrication?
JMC produces pipe spools for oil and gas EPC contractors, marine and shipyard mechanical systems, and industrial utility piping applications across the Gulf Coast and Southeast.
Does JMC provide isometric drawings and NDE documentation for spools?
Yes. JMC works from customer-supplied isometrics or reviews and marks up isometrics in-house. We provide weld maps, NDE documentation per spec, MTRs, and project closeout packages.
Why should I choose shop-fabricated pipe spools over field fabrication?
Shop spool fabrication delivers better quality control, cleaner documentation, and faster field installation. A controlled shop environment allows tighter weld tolerances, easier NDE access, and full traceability — advantages that reduce field rework and project risk.
What types of HVAC duct does JMC Fabrication produce?
JMC produces rectangular, round, and oval duct systems in all SMACNA duct classes, along with fittings, elbows, transitions, and custom configurations for commercial and industrial mechanical systems.
Is JMC Fabrication SMACNA compliant?
Yes. JMC fabricates HVAC duct in compliance with SMACNA standards, including proper gauge selection, seam types, and reinforcement for each duct class and static pressure requirement.
What materials does JMC use for duct fabrication?
JMC primarily uses galvanized steel for commercial HVAC duct per SMACNA standards. Stainless steel is available for specialty applications including food service, chemical environments, and high-humidity installations.
Can JMC handle large-volume commercial duct orders?
Yes. JMC operates a 50,000 sq ft fabrication facility in Pascagoula, MS with the capacity for large-volume commercial duct packages. We serve general contractors and mechanical subcontractors on projects across the Gulf Coast and Southeast.
Does JMC provide engineering drawings for duct systems?
Yes. JMC can coordinate with customer-supplied mechanical drawings or generate shop drawings in-house. Revit BIM coordination is available for clash-free installation support.
What types of custom metal fabrication does JMC offer?
JMC fabricates custom pump skids, penetrations, flanges, structural subbases, copper piping assemblies, and specialty weldments. We work from customer drawings or generate designs in-house, handling the full scope from engineering through finished fabrication.
Can JMC fabricate from customer-supplied drawings?
Yes. JMC can work directly from customer drawings, isometrics, or 3D models. Our engineering team reviews for fabricability, flags any issues, and goes directly to production — no external coordination required.
What materials does JMC work with for custom fabrication?
JMC works in carbon steel, stainless steel, galvanized steel, and copper. Material selection depends on application environment, pressure class, code requirements, and project budget. Material certifications (MTRs) are available.
Does JMC provide documentation and certifications for custom fabricated parts?
Yes. JMC provides inspection records, material test reports (MTRs), weld logs, and project documentation packages for custom fabrication projects that require traceability and certification.
What carbon steel grades does JMC Fabrication work with?
JMC works with structural carbon steel (ASTM A36), pipe grades (A53, A106), and carbon steel plate and sheet for various applications. Contact JMC to confirm availability for your specific grade and schedule requirements.
Can JMC provide MTRs for carbon steel fabrication projects?
Yes. JMC provides material test reports (MTRs) and mill certifications for carbon steel projects that require material traceability. Documentation packages are available per project specification.
Is carbon steel or stainless steel better for my application?
Carbon steel is preferred for structural loads, dry environments, and cost-sensitive projects. Stainless steel is required where corrosion resistance is critical — saltwater, chemical contact, or high-purity service. JMC fabricates in both materials and can help you evaluate the right choice for your application.
What industries does JMC serve with carbon steel fabrication?
JMC serves commercial HVAC contractors (galvanized carbon steel duct), oil and gas EPC firms (pipe spools), marine and shipyard accounts (structural and piping), and industrial manufacturing customers across the Gulf Coast.
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.
What is galvanized steel and when should I use it?
Galvanized steel is carbon steel coated with zinc for corrosion resistance. It is the SMACNA-standard material for commercial HVAC duct and is used wherever corrosion protection is needed without the cost of stainless steel. It is not appropriate for environments with aggressive chemical contact, saltwater immersion, or food service applications.
Does JMC fabricate SMACNA-compliant galvanized duct?
Yes. JMC produces galvanized steel HVAC duct in compliance with SMACNA standards — including gauge selection, seam types, transverse joints, and reinforcement per duct class and pressure rating.
What gauges of galvanized steel does JMC work with?
JMC works across the standard commercial duct gauge range to cover SMACNA duct classes from light-gauge commercial applications through heavier-gauge high-pressure systems. Contact JMC to confirm specific gauge availability for your project.
Can I get documentation and certifications for galvanized steel fabrication?
Yes. JMC provides inspection records and documentation packages for galvanized steel fabrication projects that require traceability and quality sign-off.
Questions about JMC's work in commercial construction, marine and shipyard, and oil & gas markets.
Is JMC Fabrication NAVSEA certified for marine welding?
Yes. JMC holds NAVSEA welding certification, qualifying our welders for work on marine and Navy specification projects. NAVSEA certification is a prerequisite for many shipyard and defense marine contracts in the Gulf Coast.
What marine fabrication services does JMC offer?
JMC produces pipe spools, HVAC and ventilation duct, structural components, penetrations, and custom weldments for marine and shipyard applications. We fabricate in carbon steel and stainless steel with full documentation and NDE capabilities per project specification.
Where is JMC Fabrication located relative to Gulf Coast shipyards?
JMC Fabrication is located in Pascagoula, MS — within the same industrial corridor as Ingalls Shipbuilding, one of the largest shipbuilders in the United States. Our proximity to the Pascagoula shipyard and Port of Pascagoula makes us a practical Gulf Coast supply source.
What materials does JMC use for marine pipe and structural fabrication?
JMC fabricates in 304 and 316 stainless steel for corrosion-critical marine applications and carbon steel for structural and non-saltwater-exposed systems. Contact JMC to confirm additional grades for specific marine applications.
Can JMC handle marine project documentation and material traceability requirements?
Yes. JMC provides material test reports (MTRs), heat certifications, weld logs, NDE records, and project closeout documentation packages for marine projects with NAVSEA or spec-driven traceability requirements.
What documentation does JMC provide for oil and gas projects?
JMC provides material test reports (MTRs), weld maps, NDE records, and project closeout packages for oil and gas pipe spool projects. Documentation is tailored to project specification requirements.
What pipe materials and grades does JMC work with for oil and gas applications?
JMC fabricates in carbon steel (ASTM A53, A106) and stainless steel (304, 316) for oil and gas piping. Contact JMC to confirm availability for additional grades and schedules required by your specification.
Can JMC fabricate pipe spools to meet oil and gas code requirements?
JMC fabricates pipe spools per the code requirements specified in the project scope. Contact JMC to confirm the compliance approach for your applicable code before submitting an RFQ.
Does JMC Fabrication serve Gulf Coast offshore and petrochemical markets?
Yes. JMC is based in Pascagoula, MS on the Gulf Coast industrial corridor, with access to offshore, petrochemical, and LNG supply chains across the region. We serve EPC contractors across the Gulf Coast and Southeast and can ship nationwide for larger projects.
What NDE testing does JMC perform on oil and gas pipe spools?
NDE is performed per project specification. Contact JMC to confirm available NDE types and whether your project requires third-party inspection support.
Does JMC Fabrication produce SMACNA-compliant HVAC duct for commercial projects?
Yes. JMC fabricates commercial HVAC duct in compliance with SMACNA standards, including proper gauge selection, seam types, and reinforcement per duct class and static pressure rating. SMACNA compliance is a baseline requirement on virtually all commercial mechanical specifications.
Can JMC coordinate with our mechanical engineer or Revit model?
Yes. JMC has in-house CAD/CAM engineering with Revit BIM modeling capability. We can review and clash-check against your mechanical model, generate shop drawings, and provide RFI support throughout the project.
Does JMC provide certified documentation for commercial fabrication projects?
Yes. JMC provides inspection records and documentation packages for commercial projects that require quality sign-off. AWS certification and SMACNA compliance are documented per project.
What commercial project sizes does JMC typically handle?
JMC's 50,000 sq ft Pascagoula facility is sized for large commercial duct packages. Contact JMC with your project scope and timeline — we'll confirm capacity and lead time.
Why source commercial duct from a Gulf Coast fabricator instead of a national supplier?
Duct is bulky — freight costs are a real factor on large commercial packages. Sourcing regionally from JMC's Pascagoula shop keeps freight costs down for Gulf Coast and Southeast buyers while delivering the same SMACNA compliance and documentation you'd expect from a national supplier.
Reach JMC directly at (228) 762-3156, email info@jmcfab.com, or submit an RFQ through the contact form. Our engineering team reviews every inquiry and responds with quotes, fabricability notes, or RFIs as the project requires.