Hastelloy C-22
Hastelloy C-22 is a nickel-chromium-molybdenum-tungsten alloy designed for broad corrosion resistance in oxidizing and reducing environments. It is especially resistant to pitting, crevice corrosion and stress-corrosion cracking.
Hastelloy C-22 Information
Hastelloy C-22 is a nickel-chromium-molybdenum-tungsten alloy designed for broad corrosion resistance in oxidizing and reducing environments. It is especially resistant to pitting, crevice corrosion and stress-corrosion cracking.
Metallic winding and compatible ring components where service conditions are suitable.
| Material specification | ASTM B575 |
|---|---|
| Specified grade / UNS | Hastelloy C-22 N06022 |
Hastelloy C-22 Chemical Composition
ASTM B575 · Grade-specific requirements
| Element / requirement | Value |
|---|---|
| Ni % | Remainder |
| Cr % | 20.0–22.5 |
| Mo % | 12.5–14.5 |
| Fe % | 2.0–6.0 |
| W % | 2.5–3.5 |
| Co % | ≤2.5 |
| C % | ≤0.015 |
| Si % | ≤0.080 |
| Mn % | ≤0.50 |
| V % | ≤0.35 |
| P % | ≤0.020 |
| S % | ≤0.020 |
Hastelloy C-22 Mechanical Properties
ASTM B575 · Grade-specific requirements
| Product form / condition | Tensile min (MPa) | Yield min (MPa) | Elongation min (%) | Hardness |
|---|---|---|---|---|
| Solution annealed · Plate / sheet / strip | 690 | 310 | 45 | 100 HRB (informative) |
ASTM B575 Grade Reference
Hastelloy C-22 N06022
The chemical and mechanical tables on this page use the ASTM B575 requirements for this grade, including the product conditions listed in the standard overview.
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