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America UNS K12039 Alloy Steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: K12039 / K12039
Category Grade Standard Region/Area Standard Content
Metals K12039 -- America Alloy Steel

Chemical composition(mass fraction)(wt.%) of the K12039

Element Min Max Similar
Si 0.1300 0.4500 -
S - 0.0400 -
P - 0.0350 -
Ni 0.3700 0.7300 -
Mo 0.4100 0.6400 -
Mn 1.0700 1.6200 -
C - 0.2000 -

Mechanical Properties of steel grade K12039

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)
392 (≥) 624 (≥) 42 11 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade K12039

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
33 - -     0.22 -  
325 742 - 12.3 322   -  
859 - 33 23.2   311 214

Heat Treatment of steel grade K12039

Heat treated : 1945°C - 1761°C

Technological Curves of steel grade K12039

Cross Reference Table (Equivalent Grade) of K12039

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