Specialty & Critical Welding
Experts in Specialty & Critical Welding
We welcome unusual design challenges that require unique sizes, shapes, or exotic metals. We use our design, welding, and manufacturing engineers as well as Certified Welders to incorporate manufacturability into your product.
CRITICAL (PRECISION) WELDING
We handle every detail of your project, and that’s how we’ve earned a national reputation for welding excellence. We follow qualified Welding Procedure Specifications (WPS), and provide:
- Design and Manufacturing Engineering support
- Experienced, Certified Welders:
- Highly Skilled TIG, MIG, Sub-arc, and Stick
- Multiple Certifications
- Versatile, Proficient, and Experienced
- Certificate of Compliance (COC) documentation
- Manufacturing documentation
The C4 Welding Advantage
- ASME Sections VIII & IX
- AWS D1.1 (Steel), D1.2 (aluminum), D1.6 (stainless steel), D14.1 (material handling) & D17.1
- NAVSEA S9074‐AQ‐GIB‐010/248 (MIL‐STD‐248) and S9074‐AQ‐GIB‐010/278 (MIL‐STD‐278)
At the same time, many procedures conform to customer‐specific and other agency‐required standards such as:
- NACE MR01‐75/ISO 15156‐X
- DNV (Off‐Shore Standard) and DNV‐OS‐E101 (Drill Plant)
- API Specification 6A/16A ASME B31.1 (Power Piping)
- ASME B31.3 (process piping)
- Ground Combat Vehicle Welding Code (aluminum 12472301) and (steel 12479550)
The previous lists were not intended to be all‐inclusive. Our highly skilled welding operators are cross‐trained and certified for a wide range of welding codes and processes. Please contact us if your specific welding code or process is not listed.
GTAW (Tig) | GMAW (Mig) | FCAW (Flux Core) | SMAW (Stick) | SAW (Sub‐Arc) | RSW (Spot) | OXY‐Fuel
Our welding engineers and certified welders can support and weld a wide range of materials such as: Carbon Steel | 1008, 1010, 1011, 1015, 1018, 1020, 1040, A36, A366, A569, A588, A622, A786, A53, A500, A106, A335, A513, A333, 1026, 1027, A335 High‐Strength Steels | Domex 100 XF, HY 100, A656 Gr., 80 A565 Gr. 80, A514, INX‐50, Ex‐Ten 50, A572 Gr. 50, A588 Mod, T‐1 Type A, T‐1 Type B, T‐1 Type C, A285, A515, A516, A715, A606, Crane Materials Stainless Steels | 304, 304/304L, 316/316L, 317, 321, 347, 405, 409, 410, 630, 15‐5, 17‐4, Duplex Alloy Steels | 4130, 4140, 4320, 4340, A204 GR B, SA 387, A517, 8620, A331, A286, Cor‐Ten A, Cor‐Ten B Nickel Alloys | AMS 5870, INCONEL 617, INCONEL 625, INCONEL 601, Monel 400, B443, A494, Hastelloy, Invar 36, Nitronic 50, Cobalt‐chrome, Stellite, 2.25cr‐1mo (Chrome Alloy), .5cr‐.5mo (Chrome Alloy), 1cr‐.5mo (Chrome Alloy) Aluminum | 3003, 5052, 5083, 5086, 6005, 6061, 6063, 6105, 356 Cast Other Materials | Titanium Grade 5 ‐TI‐6AI‐4V, A‐487 Grade 9, A27, Ductile Iron 60‐45‐15 Class M2, Ductile & Grey Iron A‐48 or A536 The previous lists were not intended to be all‐inclusive. Please contact us if your specific material is not listed.
- Standard (for all non‐pressure vessel applications). Our Standard quality program is qualified to MIL‐I‐45208 and is ISO 9001:2015 certified.
- ASME. For shop and field fabrication of pressure vessels, conforming to Section VIII, Division I (ASME “U” Stamp) and repairs and alterations of “U” Stamped Vessels in accordance with the National Board Inspection Code (NBIC “R” Stamp).
- Certificates of Authorization: “NB” Mark (National Board); “U” Stamp; “R” Stamp.
- Magnetic Particle (MT)
- Liquid Penetrant (PT)
- Ultrasonic Test (UT)
- Visual Test (VT)
- Functional, Hydro, and Proof Testing