1,Size of M2/1.3343/SKH51 cold work steel Round bar Diameter(mm) Length (mm) Max:800 Max: 9000 Plate Thickness(mm) Width (mm) Length (mm) Max:800 Max:1000 Max:6000 The specification can be customized. 2,Chemical Compositons Grade C Si Mn P S Cr Mo W V 0.80-0.90 0.20-0.45 0.15-0.40 â?¤0.03 â?¤0.03 3.80-4.40 4.50-5.50 5.50-6.75 1.75-2.20 3,Features of M2/1.3343/SKH51 Steel 1, General purpose of tungsten molybdenum high speed steel; 2, High toughness combined with good cutting powers; 3, Will withstand increases in temperature. 4,Typical Applications 1, Twist drills, reamers, broaching tools, taps, milling tools; 2, Cold forming tools and cutting tools; 3, Plastic moulds with elevated wear resistance and screws.