86-510-83074477
Rm. 740, Bldg. B, No. 168, Qiangao Road, Wuxi, Jiangsu, China (Mainland)
sae4140 alloy steel round bar
1.Diameter 80 to 800 mm
2.Black or Bright surface
3.Annealed or Quenched and tempered provided
4.Cutting service provide
Machine Capability
Tensile strength (N/mm2Mpa): >=980(100)
Elongation: >=12
Yield strength: >=835(85)
Hardness:( HBS 100/3000)<=269
Reduction of area:>=55
Akv(J)>=78 akv(J/cm2):>=98(10)
Chemical Composition (%):
C | Si | Mn | S | P | Cr | Ni | Cu | Mo |
0.37-0.44 | 0.17-0.37 | 0.40-0.80 | 0.025(max) | 0.025(max) | 0.60-0.90 | 1.25-1.65 | 0.025(max) | 0.15-0.25 |
