42CrMo is a grade specified in the Chinese standard GB/T 3077 for alloy structural steel, while 42CrMo4 is a grade in the European standard EN10083 for quenched and tempered steel.
Although they share similar chemical compositions, they originate from different standards.
42CrMo alloy steel plates are known for their excellent mechanical properties and machinability, making them widely used in various applications. Available in both sheet and round bar forms, 42CrMo offers superior overall performance compared to 40Cr and is well-regarded in the industry.
Delivery condition for 42CrMo4 and 42CrMo alloy steel plates: normalized, or normalized and tempered.
| 42CrMo Steel Round Bar Sheet Plate Supply Range | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Type | Specification | Surface | |||||||||||||||||
| Round Bar | Diameter: 6-800mm; Length: 1000-9000mm; Can be customized |
Black Surface/Bright Surface /Grinded/Peeled/Turned | |||||||||||||||||
| Sheet/Plate/Slab | Thickness: 6-500mm; width: 20-1000mm or can be customized; Length: Can be customized |
Black Surface/Bright Surface /Grinded/Peeled/Turned | |||||||||||||||||
GNEE STEEL own 10000+ tons daily stock of 42CrMo4 / 42CrMo/4140 steel plate or flat bar. Hot rolled / annealed / QT condition available.
Comparable Standards:
| AISI/SAE | DIN | W.Nr. | AFNOR | JIS | BS | SIAU | GB,YB |
| 4140 | 42CrMo4 | 1.7225 | 42CD4 | SCM440 | 708A42 | UM8 | 42CrM. |
GB 42CrMo Steel Grade Equivalent Chart
| Country | CHINA | USA | Germany | France | UK | JAPAN | ISO | |
|---|---|---|---|---|---|---|---|---|
| Standard | GB | ASTM/AISI | DIN EN/DIN | W-Nr. | NF EN/NF | BS EN/BS | JIS | ISO |
| Grades | 42CrMo | 4140/4142/A193 B7 | 42CrMo4 | 1.7225 | 42CD4 | 708M40/CFS11 | SCM440/SCM440H | 42CrMo4 |
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