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America UNS K21028 Alloy Steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: K21028 / K21028
Category Grade Standard Region/Area Standard Content
Metals K21028 -- America Alloy Steel

Chemical composition(mass fraction)(wt.%) of the K21028

Element Min Max Similar

Mechanical Properties of steel grade K21028

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)
137 (≥) 541 (≥) 22 11 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade K21028

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
12 - -     0.14 -  
885 921 - 31.3 321   -  
742 - 42 12.2   324 234

Heat Treatment of steel grade K21028

Heat treated : 1227°C - 1394°C

Technological Curves of steel grade K21028

Cross Reference Table (Equivalent Grade) of K21028

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