Hot Work Tool Steel is the high temperature working tool steel material.

Hot work tool steel is required appropriate hardness , focusing on the red hardness(hot work hardness), thermal conductivity, wear resistance. Therefore, low carbon content, alloying elements to increase hardenability, improve wear resistance.

Typical Classified:

ASTM A681- AISI/SAE “H” Series. Form H1 to H59.   AISI H13 is the most typical hot work tool steel material garde. Usually used in the manufacture of forging mold and die casting mould.

H13 TOOL STEEL

ASTM A681, DIN 17350, EN ISO 4957, JIS G 4404, GB/T 1229, SS14

AISI/ SAE H13 Tool Steel is a typical Hot work tool steel, which usually used in the manufacture of forging die. like Aluminum die casting mould, Bearing and Fearing Forged Mold die.

ASTM A681, DIN 17350, EN ISO 4957, JIS G 4404, GB/T 1229, SS14

H11 is a Chrome- Commonly used in die casting die steel with high strength and hardness, good cold and hot fatigue resistance, and good hardenability, but its toughness and good plasticity.

AISI H21 TOOL STEEL

ASTM A681, DIN 17350, EN ISO 4957, JIS G 4404, GB/T 1229, SS14

AISI/ SAE H21 Tool Steel is a chrome-tungsten, Commonly used in die casting die steel with high strength and hardness, good cold and hot fatigue resistance, and good hardenability, but its toughness and good plasticity.

JIS SKT4 HOT WORK TOOL STEEL

JIS Hot Work SKT4 Steel Plate

JIS SKT4 is a Japanese Hot work tool steel.  it has good hot hardness and toughness. High purity, good resistance to impact abrasion resistance. Can be used for hot forging die, extrusion die, manufacturing is greater than 350 mm thickness, complex cavity and bearing load larger zhong large forging die and hot die forging press.