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steel grade:
Custom 450
Product Description
XM-25 / UNS S45000 / Custom 450 chemical composition
| Carbon | 0.05 max |
| Chromium | 14.00 - 16.00 |
| Copper | 1.25 - 1.75 |
| Iron | Balance |
| Manganese | 1 max |
| Molybdenum | 0.5 - 1 |
| Nickel | 5.00 - 7.00 |
| Niobium | Min:8 x C |
| Phosphorus | 0.03 max |
| Silicon | 1 max |
| Sulphur | 0.03 max |
XM-25 / UNS S45000 / Custom 450 steel
Generally employed in applications where standard austenitics fail in terms of strength requirements in corrosive environments and martensitics fail in terms of corrosion resistance.
It effectively brings together the best of both worlds.
XM-25 / UNS S45000 / Custom 450 mechanical properties:
Mechanical Properties
| |
H900 | H950 | H1000 | H1025 | H1050 |
| Tensile strength Rm （MPa） |
1240 | 1170 | 1100 | 1035 | 1000 |
| Yield strength Rp0.2（MPa）min |
1170 | 1100 | 1035 | 965 | 930 |
| Elongation A（%）min |
6 | 7 | 8 | 12 | 9 |
| Reduction of area Z（%）min |
40 | 40 | 40 | 45 | 45 |
| Charpy AKv min |
|||||
| Hardness HBW |
363 | 341 | 331 | 321 | 321 |
Hardness:321HBW
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