EN 10083 grade 42CrMoS4: Steels for quenching and tempering

42CrMoS4 ( 1.7227 ) - Steels for quenching and tempering


Grade : 42CrMoS4
Number: 1.7227
Standard: EN 10277 - 5: 2008 Bright steel products. Technical delivery conditions. Steels for quenching and tempering EN 10083 - 3: 2006 Steels for quenching and tempering. Technical delivery conditions for alloy steels

Classification: Steels for quenching and tempering

Equivalent grades:
USA: 4140
Germany (DIN,WNr): 42CrMoS4
France (AFNOR): 42CD4u
Italy (UNI): 42CrMo4
Spain (UNE): 40CrMo41
International (ISO): 42CrMoS4

Chemical composition % of the ladle analysis
     C                   Si                 Mn              P                   S                Cr                     Mo
0.38 - 0.45     max 0.4      0.6 - 0.9      max 0.025     0.02 - 0.04       0.9 - 1.2       0.15 - 0.3


Technological properties
Weldability: ? Bad weldability due to the high crack danger.
Hardenability: ?Medium-good hardenability, suitable for hot purposes till a temperature of 500?. It can be hardened in oil.

Fe430B (ITALY): NON-ALLOY STRUCTURAL STEELS PROPERTIES

Grade: Fe430B

Country: Italy

Standard: UNI 7070

Classification: Non-alloy structural steels    

Applications: Non-alloy steel for structural purposes

European equivalent grades of Fe430B(Italy): S275JR(click here)