forged square bar AISI4140
AISI 4140 ,forged square bar with quality guarantee and reasonable price!

forged square bar AISI4140 

Forged bar

AISI 4140 forged square bar

Material :AISI 4140,GB 42CrMo,DIN 42CrMo4

Origin:China

Size:(40-25)*(100-600)

Application:M-part 

Chemical composition :

 C :0.38~0.45
 Si:0.17~0.37
 Mn:0.50~0.80
 S :0≤0.035
 P :≤0.035
 Cr:0.90~1.20
 Ni:≤0.030
 Cu:≤0.030
 Mo:0.15~0.25

Mechnical property:

σb (MPa):≥1080(110)
σs (MPa):≥930(95)
δ5 (%):≥12
ψ (%):≥45
Akv (J):≥63
αkv (J/cm2):≥78(8)
Hardenss:≤217HB