Hot rolled steel round bar
Dia:20mm-130mm
Length:5800mm
Quality:LF+VD ETC.
Cell Phone:86 18963469097
Hot rolled steel round bar 4140 42CrMo
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 | Cr | Ni | Mo |
8620 | 0.18-0.23 | 0.15-0.35 | 0.70-0.90 | Max 0.035 | Max 0.035 | 0.40-0.60 | 0.40-0.70 | 0.15-0.25 |
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.Mechanical Property:
Grade:ASTM A29 SAE 8620 SNCM220
Hardness:197HB
Tensile strength:980(100)MPA
Yield strength: 785(180)MPA
elogation:9% Reduction of area:40% AKV(impact value):47J
6.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
