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usually produced by BEF & AOD followed by electroslag remelting (ESR) / VAR if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
100% Ultrasonic test
All Grades Comparison
| DIN | W-Nr | Other |
|---|---|---|
| CoCr20W15Ni | - | 2.4964 |
Chemical Composition (Weight %)
| C | Si | Mn | P | S | Cr | Ni | Mo | Other |
|---|---|---|---|---|---|---|---|---|
| 0.05 ～ 0.15 | ≤ 0.40 | 1.00 ～ 2.00 | ≤ 0.040 | ≤ 0.030 | 19.0 ～ 21.0 | 9.00 ～ 11.0 | - | Co-balance W 14.0 ～ 16.0 Fe ≤ 3.00 |
Mechanical Properties
| Condition of heat treatment | Tensile Rm(MPa) |
Yield Rp0.2(MPa) |
Elongation A(%) |
Reduction in cross section on fracture Z (%) |
Impact AKV/AKU(J) |
Brinell Hardness(HBW) |
|---|---|---|---|---|---|---|
| Annealing | - | - | - | - | - | - |
| Quenching | 830 ～ 1130 | ≥ 1090 | ≥ 25.0 | - | ≥ 34 | - |