42CrMo4 | AISI 4140 | DIN 1.7225 | JIS SCM44 Alloy Engineering Steel
Description
42CrMo4 is structural steel and it’s very strong and hardenable. 42CrMo4 can achieve very good metal properties on the whole cross-section. For example, the maximum diameter is 70mm during quenching in oil and 50mm during quenching in water.
Furthermore, the overall performance of this heat-treated alloy steel is better than 35CrMo with using this kind of steel.
42CrMo4 steel is an improved steel grade of American AISI 4140 steel.
It is a good alternative for expensive chromium-nickel and chromium-nickel-molybdenum steel.
Composition
Table 1: Chemical composition ranges for 42CrMo4 Alloy Engineering Steel
| Grade | Standard | С | Cr | Mo | Mn | Si | P | S |
|---|---|---|---|---|---|---|---|---|
| 42CrMo4 (1.7225) | EN 10083-3 | 0.38-0.45 | 0.90-1.20 | 0.15-0.30 | 0.60-0.90 | 0.40 (Max) | 0.025 (Max) | 0.035 (Max) |
Possible Alternative
Table 2: Equivalent Alloy Material of 42CrMo4 Alloy Engineering Steel
| European | US | China | Japan | ISO | |||||
|---|---|---|---|---|---|---|---|---|---|
| Standard | Grade | Standard | Grade | Standard | Grade | Standard | Grade | Standard | Grade |
| EN 10083-3 | 42CrMo4 (1.7225) | AISI SAE; ASTM A29/A29M | 4140 | GB/T 3077 | 42CrMo | JISG 4105 | SCM440 | ISO 683-18 | 42CrMo4 |
Available Forms of 42CrMo4 in Market:
- Round bars
- Hexagonal Bars
- Flat bars
- Steel Tubes and Pipes
- Wires
- Steel Rods
- Forgings or Steel Die forgings
- Sheets and plates
- Cold-rolled steel strips
