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Product Details
Hastelloy C-22
Hastelloy C-22 is a versatile nickel-chromium-molybdenum-tungsten alloy with excellent resistance to pitting, crevice corrosion and stress corrosion cracking in a wide range of aggressive environments.
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Category
Nickel Alloy
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Grade
Hastelloy C-22 / UNS N06022
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Standard
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Product Form
ASTM B575 / ASME SB-575
Plate / Sheet / Coil
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Thickness
0.5–100 mm
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Width
1000–2500 mm
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Length
2000–6000 mm
Features
Hastelloy C-22 is a nickel-chromium-molybdenum-tungsten alloy designed for excellent corrosion resistance in both oxidizing and reducing environments. Its high chromium content provides strong resistance to oxidizing media, while molybdenum and tungsten contribute to resistance against localized corrosion. The alloy offers excellent resistance to pitting, crevice corrosion and stress corrosion cracking, making it suitable for demanding chemical processing and pollution control applications.
Excellent resistance to pitting and crevice corrosion
Outstanding resistance to stress corrosion cracking
Excellent performance in both oxidizing and reducing environments
High resistance to chloride-induced localized corrosion
Good weldability and fabrication characteristics
Suitable for a wide range of aggressive chemical environments
Chemical Composition (%)
Mechanical Properties (Typical)
Element | Composition (%) | Element | Composition (%) |
Ni | Balance | C | ≤ 0.015 |
Cr | 20.0–22.5 | Mn | ≤ 0.50 |
Mo | 12.5–14.5 | Si | ≤ 0.08 |
W | 2.5–3.5 | V | ≤ 0.35 |
Fe | 2.0–6.0 | P | ≤ 0.020 |
Co | ≤ 2.5 | S | ≤ 0.020 |
Property | Typical |
Tensile Strength | ≥ 690 MPa |
Yield Strength | ≥ 310 MPa |
Elongation | ≥ 45% |
Mechanical properties may vary depending on product form, dimensions and heat treatment condition.