T20823 Tool Die Steels

T20823 - Specification & Application

Hot-Work Tool Steel

Chemical composition(wt.%) of T20823 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.25 0.35
Si 0.15 0.60
Mn 0.15 0.40
P - 0.030
S - 0.030
Cr 11.00 12.75
Mo - -
V 0.75 1.25
W 11.00 12.75
Ni+Cu - 0.75

T20823 - Detail

Hot-Work Tool Steel

Mechanical properties of grade T20823

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)
743 (≥) 736 (≥) 31 44 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical properties of grade T20823

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
533 (≥) 533 (≥) 34 12 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 341
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
461 111 393

Equivalent Grade

Equivalent Products

We can customize the production of T20823 grade, contact us for the best solution.
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