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America UNS K21390 Alloy Steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: K21390 / K21390
Category Grade Standard Region/Area Standard Content
Metals K21390 -- America Alloy Steel

Chemical composition(mass fraction)(wt.%) of the K21390

Element Min Max Similar

Mechanical Properties of steel grade K21390

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)
591 (≥) 487 (≥) 23 31 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade K21390

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
31 - -     0.13 -  
284 437 - 41.3 113   -  
917 - 24 11.2   313 343

Heat Treatment of steel grade K21390

Heat treated : 1959°C - 1776°C

Technological Curves of steel grade K21390

Cross Reference Table (Equivalent Grade) of K21390

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