Alloy 800 / Incoloy 800
Alloy 800 is a nickel-iron-chromium alloy developed for oxidation and carburization resistance with useful strength at elevated temperature. The correct INCO trade-family name is INCOLOY alloy 800; the folder name is retained for URL compatibility.
Alloy 800 / Incoloy 800 Information
Alloy 800 is a nickel-iron-chromium alloy developed for oxidation and carburization resistance with useful strength at elevated temperature. The correct INCO trade-family name is INCOLOY alloy 800; the folder name is retained for URL compatibility.
Metallic winding and compatible ring components where service conditions are suitable.
| Material specification | ASTM B409 |
|---|---|
| Specified grade / UNS | Alloy 800 N08800 |
Alloy 800 / Incoloy 800 Chemical Composition
ASTM B409 · Grade-specific requirements
| Element / requirement | Value |
|---|---|
| Ni % | 30.0–35.0 |
| Cr % | 19.0–23.0 |
| Fe % | ≥39.5 |
| Mn % | ≤1.5 |
| C % | ≤0.10 |
| Cu % | ≤0.75 |
| Si % | ≤1.0 |
| S % | ≤0.015 |
| Al % | 0.15–0.60 |
| Ti % | 0.15–0.60 |
| Combined limit % | — |
Alloy 800 / Incoloy 800 Mechanical Properties
ASTM B409 · Grade-specific requirements
| Product form / condition | Tensile min (MPa) | Yield min (MPa) | Elongation min (%) | Hardness |
|---|---|---|---|---|
| Hot-rolled plate · Annealed | 520 | 205 | 30 | — |
| Hot-rolled plate · As-rolled | 550 | 240 | 25 | — |
| Hot- / cold-rolled sheet and cold-rolled strip · Annealed | 520 | 205 | 30 | — |
ASTM B409 Grade Reference
Alloy 800 N08800
The chemical and mechanical tables on this page use the ASTM B409 requirements for this grade, including the product conditions listed in the standard overview.
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