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Description

USA UNS T20822 Tool Die Steels Hot-Work Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Die Steels: T20822
Category Class Grade Standard Country Application
Steel GradesTool Die Steels T20822 UNS USA Hot-Work Tool Steel

Chemical composition(mass fraction)(wt.%) of the T20822

C Si Mn P S Cr Mo V W Ni+Cu
0.30 -0.40 0.15 -0.40 0.15 -0.40 ≤0.030 ≤0.030 1.75 -3.75 ≤ ≥ 0.25 -0.50 10.00 -11.75 ≤0.75

Mechanical Properties of steel grade T20822

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)
596 (≥) 633 (≥) 23 34 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade T20822

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
42 - -     0.12 -  
958 573 - 12.3 432   -  
429 - 11 13.2   233 234

Heat Treatment of steel grade T20822

Heat treated : 1385°C - 1472°C

Technological Curves of steel grade T20822

Cross Reference Table (Equivalent Grade) of T20822

Grade Standard Country Application
UNS T20822
H23
H23
T20822

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