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When constructing critical fluid handling systems in chemical processing, flue gas desulfurization (FGD), or pharmaceutical industries, the integrity of the piping network relies heavily on the quality of pipes, tubes, and fittings. Hastelloy C-22 (UNS N06022 / W.Nr. 2.4602) is the premier nickel-chromium-molybdenum-tungsten alloy chosen for these applications due to its universal corrosion resistance. Shanghai COCESS Special Alloys Co., Ltd operates as a specialized manufacturer and supplier, providing precision-engineered C-22 piping components and custom fabrication services to meet stringent international project requirements.
Seamless & Welded Pipe / Tube Specifications
We supply Hastelloy C-22 pipes and tubes in both seamless and welded constructions, strictly adhering to ASTM / ASME standards to ensure dimensional accuracy and pressure integrity.
Standards: Seamless Pipes & Tubes per ASTM B622 / ASME SB622; Welded Pipes per ASTM B619 / ASME SB619; Welded Tubes per ASTM B626 / ASME SB626.
Size Range:
Seamless: Outer Diameter from 6 mm up to 219 mm (1/8" to 8"), Wall Thickness from 0.5 mm to 20 mm.
Welded: Larger diameters available up to 1200 mm (48") or more upon request.
Length: Standard 6 meters (Single Random Length) or 12 meters (Double Random Length), with custom cut-to-length services available.
Common Schedules: SCH 5S, 10S, 40S, 80S, 160S, and XXS.
Butt Weld Fittings, Flanges & Forgings
To complete your corrosion-resistant piping systems, we manufacture a comprehensive range of fittings and connection components, ensuring full traceability and matching corrosion resistance to the base pipe.
Pipe Fittings: Elbows (45°, 90°, 180°), Tees (Equal/Reducing), Reducers (Concentric/Eccentric), Caps, and Stub Ends. Manufactured according to ASTM B366 / ASME SB366 and dimensionally compliant with ASME B16.9, B16.28, and MSS-SP-43.
Flanges: Slip-On, Weld Neck, Blind, Socket Weld, and Lap Joint Flanges. Manufactured per ASTM B564 / ASME SB564, facing types include RF (Raised Face) and RTJ (Ring Type Joint), pressure classes from 150# to 2500#.
Other Forgings: Custom blocks, rings, and machined parts produced from forged billets (ASTM B564).
Custom Fabrication & Engineered Solutions
Beyond standard stock sizes, Shanghai COCESS Special Alloys Co., Ltd offers extensive custom manufacturing capabilities. We understand that complex process skids and retrofit projects often require non-standard geometries.
Made to Drawing: We fabricate specialized pipe spools, complex manifolds, shaped transition pieces, and non-standard fittings strictly according to your engineering drawings and specifications.
Special Shapes: Supply of U-Bend tubes (for heat exchangers), coiled tubing, and square/rectangular profiles.
Machining Services: We provide value-added machining including beveling, threading, drilling, and flange facing to reduce on-site labor time.
Material Integrity & Quality Assurance
Hastelloy C-22's performance is heavily dependent on strict chemical composition control (specifically Chromium 20.0-22.5%, Molybdenum 12.5-14.5%, and Carbon ≤0.015%). Our quality protocol ensures:
Traceability: Every product ships with an EN 10204 3.1 Material Test Certificate (MTC) detailing heat number, chemical analysis, and mechanical properties (Tensile ≥690 MPa, Yield ≥283 MPa, Elongation ≥40%).
Testing: Availability of Hydrostatic testing, Pneumatic testing, Eddy Current testing (for tubes), Ultrasonic testing (UT), and Positive Material Identification (PMI) upon request.
Surface Finish: Typically supplied in a mill finish (pickled/acid washed) or bright annealed condition, suitable for welding without further surface preparation.
For inquiries regarding specific pipe dimensions, fitting schedules, or custom fabrication drawings for Hastelloy C-22 components, please contact the technical sales team at Shanghai COCESS Special Alloys Co., Ltd. We are equipped to support urgent project timelines with reliable lead times and rigorous quality control.
Website: https://en.cocessalloys.com
Email: sales@cocessalloys.com
