4140 alloy steel round bar Diameter:20mm-300mm Quality:ELF+VD Delivery condition:hot rolled+black surface
Hot rolled steel round bar 4140 42CrMo4
Large diameter,good quality,
competitive price,shipping quickly,
Delivery condition:hot rolled+black surface
1. Quality: AISI4140
Dia:12mm-300mm
2. Standard Performed: ASTM A29/A29M-04
Equal Standard:
America Standard: AISI4140
International Standard: 42CrMo4
Japan Standard: SCM440
Germany Standard: 42CrMo4
3. Chemical composition:
Grade | C | Si | Mn | P | S | Ni | Cr | Mo | Cu | Al |
AISI4140 | 0.38 0.41 | 0.15 0.35 | 0.85 1.00 | Max 0.015 | Max 0.040 | Max 0.25 | 0.80 1.10 | 0.15 0.25 | Max 0.35 | 0.012 0.030 |
4.Grade:ASTM A29 4140 42CrMo SCM440
Hardness:217HB
Tensile strength:1080(110)MPA
Yield strength: 930(95)MPA
elogation:12% Reduction of area:45% AKV(impact value):63J
5.Size Tolerance:
Length tolerance: +100mm/-0mm
Side length tolerance: +/-2mm
Straightness:Max 6mm/m
Quality Contation
Both end of each bar must be cut.
Ladle furnanced and vacuum de-gassed
Show heat No. on each bar
Alloy steel round bar
