T20842 Tool Die Steels

T20842 - Specification & Application

Hot-Work Tool Steel

Chemical composition(wt.%) of T20842 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.60
Si 0.20 0.40
Mn 0.20 0.40
Cr - 4.00
Mo - 5.00
V - 2.00
W - 6.00

T20842 - Detail

Hot-Work Tool Steel

Mechanical properties of grade T20842

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)
196 (≥) 396 (≥) 13 42 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical properties of grade T20842

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
788 (≥) 881 (≥) 14 44 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 121
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
842 258 233

Equivalent Grade

Equivalent Products

We can customize the production of T20842 grade, contact us for the best solution.
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