Alloy 825 / Incoloy 825
Alloy 825 is a nickel-iron-chromium alloy containing molybdenum, copper and titanium. It is used where resistance to reducing acids, pitting, intergranular attack and stress-corrosion cracking is required.
Alloy 825 / Incoloy 825 Information
Alloy 825 is a nickel-iron-chromium alloy containing molybdenum, copper and titanium. It is used where resistance to reducing acids, pitting, intergranular attack and stress-corrosion cracking is required.
Metallic winding and compatible ring components where service conditions are suitable.
| Material specification | ASTM B424 |
|---|---|
| Specified grade / UNS | Alloy 825 N08825 |
Alloy 825 / Incoloy 825 Chemical Composition
ASTM B424 · Grade-specific requirements
| Element / requirement | Value |
|---|---|
| Ni % | 38.0–46.0 |
| Cr % | 19.5–23.5 |
| Fe % | ≥22.0 |
| Mn % | ≤1.0 |
| C % | ≤0.050 |
| Cu % | 1.5–3.0 |
| Si % | ≤0.50 |
| S % | ≤0.030 |
| Al % | ≤0.20 |
| Ti % | 0.60–1.20 |
| Mo % | 2.5–3.5 |
Alloy 825 / Incoloy 825 Mechanical Properties
ASTM B424 · Grade-specific requirements
| Product form / condition | Tensile min (MPa) | Yield min (MPa) | Elongation min (%) | Hardness |
|---|---|---|---|---|
| Hot-rolled plate / sheet · Annealed | 586 | 241 | 30 | — |
| Cold-rolled plate / sheet · Annealed | 586 | 241 | 30 | — |
| Cold-rolled strip · Annealed | 586 | 241 | 30 | — |
ASTM B424 Grade Reference
Alloy 825 N08825
The chemical and mechanical tables on this page use the ASTM B424 requirements for this grade, including the product conditions listed in the standard overview.
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