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USA UNS T20823 Tool Die Steels Hot-Work Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Die Steels: T20823
Category Class Grade Standard Country Application
Steel GradesTool Die Steels T20823 UNS USA Hot-Work Tool Steel

Chemical composition(mass fraction)(wt.%) of the T20823

C Si Mn P S Cr Mo V W Ni+Cu
0.25 -0.35 0.15 -0.60 0.15 -0.40 ≤0.030 ≤0.030 11.00 -12.75 ≤ ≥ 0.75 -1.25 11.00 -12.75 ≤0.75

Mechanical Properties of steel grade T20823

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
757 (≥) 149 (≥) 21 34 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade T20823

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
24 - -     0.43 -  
798 854 - 33.3 221   -  
471 - 24 31.2   312 434

Heat Treatment of steel grade T20823

Heat treated : 1995°C - 1835°C

Technological Curves of steel grade T20823

Cross Reference Table (Equivalent Grade) of T20823

Grade Standard Country Application
UNS T20823
T20823

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