Average hardenability steel that achieves average hardness, strength and toughness after treatment. Used in the manufacture of medium-sized parts that require average mechanical strength, for oil exploration, capital goods and steelmaking industries.
- ABTN | ASTM | SAE | AISI: 4140
- DIN | WNr: 1.7225
- Chemical composition:
C % | Mn % | Cr % | Ni % | Mo % | OTHERS % |
0.40 | 0.90 | 0.95 | - | 0.20 | - |
