Buy Hastelloy C-22 Alloy | High Quality Wholesale Supplier

When sourcing materials for aggressive chemical, environmental, or pharmaceutical processing applications, the reliability of your nickel-based alloy supplier is as critical as the alloy's performance. Hastelloy C-22 (UNS N06022 / W.Nr. 2.4602) is a versatile nickel-chromium-molybdenum-tungsten alloy designed to offer superior resistance to both oxidizing and reducing media. Shanghai COCESS Special Alloys Co., Ltd​ operates as a high-quality wholesale supplier and manufacturer, providing full traceability, rigorous quality control, and a comprehensive stock of C-22 alloy products to meet global project demands.

Chemical Composition & Mechanical Data

The exceptional corrosion resistance of C-22 stems from its high Chromium (20.0-22.5%) and Molybdenum (12.5-14.5%) content, combined with an ultra-low Carbon (≤0.015%) limit to prevent sensitization during welding.

• Nominal Chemistry (%):​ Ni Bal., Cr 20.0–22.5, Mo 12.5–14.5, W 2.5–3.5, Fe 2.0–6.0, Co ≤ 2.5, C ≤ 0.015.

• Mechanical Properties (Solution Annealed):​ Tensile Strength ≥ 690 MPa (100 ksi), Yield Strength (0.2% Offset) ≥ 283 MPa (41 ksi), Elongation ≥ 40%, Hardness ≤ 100 HRB.

• Physical Properties:​ Density 8.69 g/cm³; Melting Range 1357–1399°C.

Available Product Forms & Specifications

We supply Hastelloy C-22 in various mill forms, strictly conforming to ASTM / ASME standards to ensure compatibility with international fabrication codes:

• Plate, Sheet & Coil:​ ASTM B575 / ASME SB-575. Thickness ranges from thin foil/strip up to heavy plates (e.g., 0.5mm to 50mm+), suitable for vessel cladding, reactor shells, and baffles.

• Seamless & Welded Pipe / Tube:​ ASTM B622 (Smls), B619 (Welded Pipe), B626 (Welded Tube). Available in standard schedules (5S to XXS) and sizes for heat exchanger tubing or transfer lines.

• Bar, Rod & Forgings:​ ASTM B574 (Bar), B564 (Forgings). Round bars from small diameters (Ø2mm) up to large forged blocks (Ø300mm+), used for valve stems, pump shafts, and custom machined parts.

• Fittings & Flanges:​ ASTM B366 (Fittings), B564 (Flanges). Including elbows, tees, reducers, and weld neck/slip-on flanges for complete piping solutions.

Corrosion Resistance & Key Applications

C-22 is often selected over C-276 for applications involving oxidizing chlorides, wet chlorine, or mixed acids (nitric + hydrochloric/sulfuric), due to its higher Chromium content which enhances resistance to oxidizing agents.

• Primary Environments:​ Sulfuric acid, hydrochloric acid, phosphoric acid, nitric acid, acetic acid, wet chlorine gas, hypochlorites, and seawater/brines. It exhibits excellent resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC).

• Typical Industries:​ Flue Gas Desulfurization (FGD) systems (scrubbers, stacks), Chemical Processing (reactors, columns), Pharmaceutical manufacturing, Waste incineration, and Pulp & Paper bleaching operations.

Quality Assurance & Wholesale Advantage

As a direct supplier, Shanghai COCESS Special Alloys Co., Ltd​ eliminates unnecessary intermediaries, offering competitive wholesale pricing without compromising quality.

• Documentation:​ Every order ships with an EN 10204 3.1 Material Test Certificate (MTC), detailing heat number traceability, chemical analysis, and mechanical test results.

• Inspection:​ Products are supplied in a solution-annealed and descaled (pickled) condition. We support third-party inspection (SGS, TUV, BV, etc.) and Positive Material Identification (PMI) upon request.

• Logistics:​ We manage export packaging (wooden crates, protected ends) and global shipping to ensure materials arrive in mill-perfect condition.

For wholesale inquiries, volume pricing, or to request a stock list of Hastelloy C-22 plates, pipes, or bars, please contact our sales team at Shanghai COCESS Special Alloys Co., Ltd. We are ready to support your procurement needs with prompt quotes and reliable lead times.

Website: https://en.cocessalloys.com
Email: sales@cocessalloys.com