42CrMo4 Steel

42CrMo4 Steel

Steel name: 42CrMo4
Diagram No.: 2034
DIN designation: 42CrMo4
Chemical composition in weight %: See the table.
Steel group: Alloyed steels
Applications: No data
Comment: 42CrMo4 is a steel for quenching and tempering, which has a good combination of strength and toughness in the quenched and tempered condition. After the oil quenching, the steel will be through hardened up to ø60 mm bar diameter. The microstructure of larger dimensions is not fully martensite. The steel is applicable to induction hardening. The surface hardness will exceed min. 53 HRC. 42CrMo4 can be delivered M-treated in order to optimize the machinability.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: 840-880°C, in oil or water. Temper in 540-680°C.

Hardenability Diagram

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Other Steel Data links:
Carbides in Steel
CCT and TTT Diagrams of Steels
CCT and TTT Diagram Calculating Service
Hardenability Calculating Service
Macro Defects in Steel
Metal Etchants
Non-Metallic Inclusions in Steel
Semiconductor Etchants
Transformation Diagrams of Non-Ferrous Alloys
Tempering Diagrams of Steels

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