High Speed Tool Steel Bars Hss T1/M2/M35 according to standard of GB,ASTM,DIN,JIS, High Speed Tool Steels Bars Steel Grade Chemical composition in ... % by wt (ladle analysis) DINAISI No SAE No JIS C≤ ... .0—10.0 S 6—5—2—5 1.3243 —SKH 55 0.88—0.96 0.45 0 ... Application :Driller, Topper,Cut Tools, Punch, Bearing High Speed Tool Steel Bars