H42 Tool Die Steels

H42 - Specification & Application

Hot-Work Tool Steel

Chemical composition(wt.%) of H42 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.55 0.70
Si 0.20 0.45
Mn 0.15 0.40
P - 0.030
S - 0.030
Cr 3.75 4.50
Mo 4.50 5.50
V 1.75 2.20
W 5.50 6.75
Ni+Cu - 0.75

H42 - Detail

Hot-Work Tool Steel

Mechanical properties of grade H42

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
127 (≥) 934 (≥) 23 41 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical properties of grade H42

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
914 (≥) 421 (≥) 43 21 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 222
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
781 799 524

Equivalent Grade

Equivalent Products

We can customize the production of H42 grade, contact us for the best solution.
sales@specificsteel.com