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Grade Comparison Tool
Compare chemical composition, mechanical properties, and international standard equivalents side by side. Differences highlighted in gold.
Select Grades to Compare
Austenitic Stainless Steel
SS 904L
UNS: N08904 | Werkstoff: 1.4539
ASTM: N08904
Nickel-Iron-Chromium-Molybdenum Alloy
Alloy 825
UNS: N08825 | Werkstoff: 2.4858
ASTM: N08825
15 differences found
11 in chemical composition, 4 in mechanical properties. Differences highlighted in gold.
Chemical Composition (% max unless range)
| Element | SS 904L | Alloy 825 | Match |
|---|---|---|---|
| C | 0.020 max | 0.05 max | |
| Mn | 2.00 max | 1.00 max | |
| Si | 1.00 max | 0.50 max | |
| P | 0.045 max | - | |
| S | 0.035 max | - | |
| Cr | 19.0-23.0 | 19.5-23.5 | |
| Ni | 23.0-28.0 | 38.0-46.0 | |
| Mo | 4.0-5.0 | 2.5-3.5 | |
| Cu | 1.0-2.0 | 1.5-3.0 | |
| Ti | - | 0.6-1.2 | |
| Fe | - | 22.0 min |
Mechanical Properties
| Property | SS 904L | Alloy 825 | Match |
|---|---|---|---|
| Tensile Strength | 490 MPa min | 586 MPa min | |
| Yield Strength | 220 MPa min | 241 MPa min | |
| Elongation | 35% min | 30% min | |
| Hardness | 90 HRB max | N/A |
International Standard Equivalents
| Standard | SS 904L | Alloy 825 |
|---|---|---|
| UNS Number | N08904 | N08825 |
| Werkstoff Nr. | 1.4539 | 2.4858 |
| EN Name | X1NiCrMoCu25-20-5 | NiCr21Mo |
| ASTM / ASME | N08904 | N08825 |
| JIS (Japan) | SUS 890L | - |
| Applicable Standards | ASTM A312 / ASME SA312, ASTM B673 / ASME SB673, ASTM B674 / ASME SB674, DIN EN 10216-5 | ASTM B423 / ASME SB423, ASTM B163 / ASME SB163, ASTM B705 / ASME SB705, DIN 17751 |
