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