40XM / 42CrMo4 / 1.7225

Apvalus strypai
nuo Ø20mm iki Ø800mm
Lakštinis plienas
storis nuo 6mm iki 250mm
Juostos ir kvadratai
plotis nuo 6mm iki 1000mm
storis ≥300mm



Toughening steel; weldable and easily machinable



for machine components with very high strength and ductility, parts exposed to changing loads such as: axles, crankshafts, gear wheels, discs, rotors, levers, pushers


Chemical composition [%]


C Mn Si P S Cr Ni Mo W V Co Cu
0,38-0,45 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




PN W. nr EN AISI Russia (GOST) Other
40HM 1.7225 42CrMo4 4140 38ChM 15142



welding YES
forging YES
rolling YES
nitriding YES
hardening YES temp. 820 – 860 [°C]
tempering YES temp. 540 – 680 [°C]



after toughening 60 HRC
after softening 240 HB