42CrMo4/DIN 1.7225 Alloy Steel manufacturers and suppliers, supplied with round rods,square/flat bars,rollers,shafts,blocks and forging pieces.
42CrMo4/DIN 1.7225 steel is a commonly used grade contains Chromium-Molybdenum elements in European standard EN10083 and EN10250. This steel has good strength and toughness,and good low-temperature impact toughness which are mostly used after quenched and tempered heat treatment. DIN 1.7225 / 42CrMo4 is widely used in large size and important parts,such as axle,gear,connecting rod,engine cylinder,spring,oil drill pipe joints and pinions.
1.Chemical Composition
| Grade | C | Si | Mn | P | S | Cr | Mo |
| 42CrMo4/1.7225 | 0.38-0.45 | ≤ 0.4 | 0.6-0.9 | ≤ 0.025 | ≤ 0.035 | 0.9-1.2 | 0.15-0.3 |
| 4140 | 0.38-0.43 | 0.15-0.35 | 0.75-1.0 | ≤0.035 | ≤0.035 | 0.8-1.1 | 0.15-0.25 |
2.Related Specifications
ASTM:4140
JIS:SCM440
BS:EN19/708M40
GB:42CrMo
3.Heat Treatment & Mechanical Property
