... are commonly used in the machine production as bearing. CARBON STEEL BAR, CHROME PLATED BAR, CHROMATE TREATED BAR.They are commonly ... ;ROUNDNESS:±0.02mm;CHROME LAYER:0.02mm;MATERIAL:45 STEEL, CARBON STEEL45 STEEL, CARBON STEEL:Tensile strength: Mpa 600 Yield strength: Mpa 355Chemical ... .035P,0.035S,0.25Ni,0.25Cr,0.25CuOur carbon steel solid bar and chrome plated bar are widely used in ...