alloy steel bar
Minimum Order: 0
Quality/Safety Certification: 0.00
alloy steel bar
standard:Chinese GB,ASTM, DIN
Material:a42CrMo,42CrMo4,4140
diameter:12-400mm length:6m or more
alloy steel bar
standard:Chinese GB,ASTM, DIN
Material:a42CrMo,42CrMo4,4140
diameter:12-400mm length:6m or more
for industry
application:gear,backshaft,drill pipe,mould
and etc
chemical composition:
C: 0.38-0.45
Si: 0.17~0.37
Mn: 0.50~0.80
S: ≤0.035
P:≤0.035
Cr: 0.90~1.20
Ni:≤0.030
Cu:≤0.030
Mo:0.15~0.25
mechanical propertity:
tensile strength:σb (MPa)≥1080(110)
yield strength:σs (MPa)≥930(95)
elongation:σs (MPa)≥930(95)
hardness:≤217HB
sample diameter:25mm