AISI H13 Alloy Tool Steel

Description:
Uniform microstructure, free cutting and good polishing, High tenacity, ductility and high wear resistance in high temperature, Excellent hardenability and good heat resistance, Small deformation during heat treatment.


4Cr5MoSiV1
Standard/Steel Grade Chemical Composition(%)
Standard/Steel Grade C Si Mn Mo Cr V
GB 4Cr5MoSiV1 0.32-0.45 0.80-1.20 0.20-0.50 1.10-1.75 4.75-5.50 0.80-1.20
AISI H13 0.32-0.45 0.80-1.25 0.20-0.60 1.10-1.75 4.75-5.50 0.80-1.20
DIN 1.2344 0.35-0.42 0.80-1.20 0.25-0.50 1.20-1.50 4.80-5.50 0.85-1.15
JIS SKD61 0.35-0.42 0.80-1.20 0.25-0.50 1.00-1.50 4.80-5.50 0.80-1.15


Physical properties:
Modulus of Elasticity (E): 210000MPa。
Coefficient of linear expansion:
Temperature (℃) Coefficient of linear expansion (℃-1)
20～100 9.1×10-6
20～200 10.3×10-6
20～300 11.5×10-6
20～400 12.2×10-6
20～500 12.8×10-6
20～600 13.2×10-6
20～700 13.5×10-6

Temperature (℃) thermal conductivity λ/W•(m•K)-1:
25 32.2
650 28.8

Heat treatment:
Quenching, 790℃ preheating, 1000℃ salt bath, holding 5~15 min, air cooling
Tempering: 550℃

Delivery condition:
Annealed

Application:
Widely used for hot extrusion dies, dies for mandrels and forging hammers, die-casting mould for aluminum, copper and its alloys