Equivalent grades GB DIN AISI JIS 3Cr2Mo 1.2330 P20 Chemical Composition C Si Mn Cr P S Mo 0.37-0.44 0.17-0.37 1.40-1.80 ≤0.030 0.035MAX 0.035MAX ≤0.15 Available size Round Bar Diameter Length 10-380mm 2000-5800mm Flat Bar Thickness Width Length 12-500mm 60-900mm 2000-5800mm Smelting&shaping EF/ ESR+ hot forged/ hot rolled Surface condition Black surface/ Grinded/ Machined