42CRMo4 and 42CRMo4+QT STEEL

42CRMo4 standard is designed for steel grade for toughening. Thermal-improvement figures on quenching and high tempering.

 

As a result of it, 42CRMo4 steel has got better resistance for stretching and better crack resistance. It also gets the growth of ductile properties. On the other hand, that is a steel which is not suitable for welding. It is used for producing high resistance and high tenacity elements. Improved-thermal steel is marked with a 42CRMo4+QT symbol.

Chemical composition [%]

C MN SI P S CR NI MO W V CO CU
0,36-0,45 0,4-0,7 0,17-0,37 max 0,035 max 0,035 0,8-1,2 max 0,3 0,15-0,25 max 0,2 max 0,05 - max 0,25

 

Analogs:

 

POLISH
NORMS
W.NR EN AISI RUSSIA
(GOST)
CZECH
REPUBLIC
CHINA OTHERS
40HM 1.7225 42CrMo4 4140 38ChM 15142 42CrMo F.8232

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