Chinese supplier hot rolled 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)

4140 Chemical Composition (%):

≤0.030

0.80~1.10

0.15~0.25