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America UNS T20842 热作工具钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: T20842 / T20842
Category Grade Standard Region/Area Standard Content
Metals T20842 -- America 热作工具钢

Chemical composition(mass fraction)(wt.%) of the T20842

Element Min Max Similar

Mechanical Properties of steel grade T20842

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)
149 (≥) 972 (≥) 22 24 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical Properties of steel grade T20842

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
43 - -     0.33 -  
213 235 - 22.3 214   -  
195 - 41 44.2   332 144

Heat Treatment of steel grade T20842

Heat treated : 1745°C - 1633°C

Technological Curves of steel grade T20842

Cross Reference Table (Equivalent Grade) of T20842

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