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Compare chemical composition, mechanical properties, and international standard equivalents side by side. Differences highlighted in gold.
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Nickel-Chromium-Molybdenum Alloy
Alloy 625
UNS: N06625 | Werkstoff: 2.4856
ASTM: N06625
Nickel-Iron-Chromium-Molybdenum Alloy
Alloy 825
UNS: N08825 | Werkstoff: 2.4858
ASTM: N08825
10 differences found
8 in chemical composition, 2 in mechanical properties. Differences highlighted in gold.
Chemical Composition (% max unless range)
| Element | Alloy 625 | Alloy 825 | Match |
|---|---|---|---|
| C | 0.10 max | 0.05 max | |
| Mn | 0.50 max | 1.00 max | |
| Si | 0.50 max | 0.50 max | |
| Cr | 20.0-23.0 | 19.5-23.5 | |
| Ni | 58.0 min | 38.0-46.0 | |
| Mo | 8.0-10.0 | 2.5-3.5 | |
| Cu | - | 1.5-3.0 | |
| Ti | 0.40 max | 0.6-1.2 | |
| Fe | 5.0 max | 22.0 min |
Mechanical Properties
| Property | Alloy 625 | Alloy 825 | Match |
|---|---|---|---|
| Tensile Strength | 827 MPa min | 586 MPa min | |
| Yield Strength | 414 MPa min | 241 MPa min | |
| Elongation | 30% min | 30% min | |
| Hardness | N/A | N/A |
International Standard Equivalents
| Standard | Alloy 625 | Alloy 825 |
|---|---|---|
| UNS Number | N06625 | N08825 |
| Werkstoff Nr. | 2.4856 | 2.4858 |
| EN Name | NiCr22Mo9Nb | NiCr21Mo |
| ASTM / ASME | N06625 | N08825 |
| Applicable Standards | ASTM B444 / ASME SB444, ASTM B163 / ASME SB163, ASTM B704 / ASME SB704, DIN 17751 | ASTM B423 / ASME SB423, ASTM B163 / ASME SB163, ASTM B705 / ASME SB705, DIN 17751 |
