... , 321,400Series - 410 (1Cr13),420(2Cr13),430(1Cr17)Etc.Shape: Round ,Hex square,angle,flat,SquareStandard: ASTM ,EN10272,JIS4303,JIS G ... is form 50mm~8000mmDiameter Size:Hot rolled round bar,it is from 5.5mm~ 100mmCold forged round bar, It is from 100mm~260mmGrinding ... bar, It is from 3.0mm~160mmCold drawn round bar, It is from 1.0mm~50mmTurn smooth bar, It ...