1.Size of T1 alloy steel Diameter(mm):20~600 Length (mm):1000~6000 Plate Thickness(mm):Max:800 Width (mm):Max:2200 Length (mm):Max:6000 The specification can be customized. 2.Chemical Compositions C:0.70-0.80 Si:0.20-0.40 Mn:0.10-0.40 P:Max 0.030 S:Max 0.030 Cr:3.80-4.40 Mo: Max 0.30 W:17.50-19.00 V:1.00-1.40 3.Similar Grade GB:W18Cr4V AISI:T1 DIN:1.3355 JIS:SKH2 4.Feature of T1 steel (1)Tungsten molybdenum high speed steel. (2)High toughness combined with good cutting powers. (3)High hardness and wear resistance. 5.Application For cutting tools, cold forging die, wear resistance screws and cold forming tools