ASTM H13 special steel is hot working tool steel. H13 tool steel is the most popular steel grade for various Industries. H13 appears excellent machinability with constant hardness during production activities.

The main features of high alloyed H13 Hot Work tool steel is high wear resistance to thermal shock. H13 alloy tool steel bars have high temperature strength, good toughness and ductility.  

Chemical composition(%)

Carbon: 0.32-0.45

Chromium: 4.75-5.50

Molybdenum: 1.10-1.75

Vanadium: 0.80-1.20

Silicon: 0.80-1.25

Sulphor: 0.30 max

Phosphorus: 0.30 max

Manganese: 0.25-0.50

Physical Properties:

Density: 0.280 lb/in3 (7750 kg/m3)

Specific Gravity: 7.75

Modulus of Elasticity: 0.294 lb/in3 (8138 kg/m3)

Machinability: 70% of a 1% carbon steel

The equivalent steel grade H-13 / SKD61 / AISI H13 normally available in the annealed condition but in some specific applications, we provide Pre-Hard H13 with its standard hardness 460-500 BHN.

ASTM H13 tool steel is a wide use hot working steel. This special steel is used to produce hot stamping and press forge dies, split hot heading dies, gripper dies, hot punching, piercing and trimming tools. Other applications include plastic moulds, shear blades for hot work and hot swaging dies.