Annealing |
Quenching |
Tempering |
Normalizing |
Q & T |
√ |
√ |
√ |
√ |
√ |
C ≤ |
Si ≤ |
Mn ≤ |
P ≤ |
S ≤ |
Cr | Ni |
---|---|---|---|---|---|---|
0.48-0.58 | 0.25 | 8.00-10.0 | 0.050 | 0.035 | 20.0-23.0 | 3.25-4.50 |
Mo | Al | Cu | Nb | Ti | V | Ce |
N | Co | Pb | B | Other | trade names | |
0.38-0.55 | 21-4N | |||||
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