Specification 1.Hot work tool steel. 2.Very good red-hardness with toughnes. 3.Tools may be water-cooled in service. 4.May be cold-hobbed in the annealed condition. Application 1.Casting dies for aluminium, magnesium and zinc. 2.Extrusion dies and adaptor ring . 3.Hot stamping and press forge dies . 4.Shear blades for hot work and hot swaging dies. Chemical composition NAME C Si Mn P S Cr V H13 0.32-0.45 0.80-1.20 0.20-0.50 0.030 0.030 4.75-5.50 0.80-1.20 Similar grade GB AISI/ASTM DIN JIS 4Cr5MoSiV H13 1.2344 SKD61
