ASTM B424
Alloy 825 plate, sheet and strip requirements, with chemical limits and annealed tensile properties from the supplied edition.
Nickel-Iron-Chromium-Molybdenum-Copper Alloy Flat Products
Edition: B424-93ε1
1 linked material grade
Material requirements.
Clearly organized.
Alloy 825 plate, sheet and strip requirements, with chemical limits and annealed tensile properties from the supplied edition.
Material forms, conditions and dimensional ranges are shown alongside the relevant property values.
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Open a material page or switch between chemical composition and mechanical properties.
Composition & Mechanical Properties
| Grade / UNS | Ni % | Cr % | Fe % | Mn % | C % | Cu % | Si % | S % | Al % | Ti % | Mo % |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Alloy 825 N08825 | 38.0–46.0 | 19.5–23.5 | ≥22.0 | ≤1.0 | ≤0.050 | 1.5–3.0 | ≤0.50 | ≤0.030 | ≤0.20 | 0.60–1.20 | 2.5–3.5 |
Composition values are mass percentages. ≤ indicates a maximum; ≥ indicates a minimum.
| Grade / UNS | Product form / condition | Tensile min (MPa) | Yield min (MPa) | Elongation min (%) | Hardness |
|---|---|---|---|---|---|
| Alloy 825 N08825 | Hot-rolled plate / sheet · Annealed | 586 | 241 | 30 | — |
| Alloy 825 N08825 | Cold-rolled plate / sheet · Annealed | 586 | 241 | 30 | — |
| Alloy 825 N08825 | Cold-rolled strip · Annealed | 586 | 241 | 30 | — |
- Iron is determined by difference.
- Yield requirements exclude thickness below 0.020 in. (0.51 mm). Cold-rolled strip tensile and elongation requirements exclude thickness below 0.010 in. (0.25 mm).
- Elongation uses a 2 in. / 50 mm or 4D gauge length.
From material form
to gasket component.
Review the listed material grade and its delivery condition when selecting winding strip or ring stock for a specified gasket design.
Material standards and gasket standards serve different purposes.
ASTM B424 addresses the material forms identified on this page. Finished metallic gasket requirements are addressed separately by the applicable gasket standard.
Explore ASME B16.20 →Common questions
Material coverage and property conditions for this standard.
Which website material grades are included?
Alloy 825.
What edition is used for these tables?
The tables use ASTM B424-93ε1.
Are material properties independent of condition?
No. The mechanical table identifies the applicable product form, condition and dimensional range for each listed row.