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America UNS K12709 高强度低合金钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: K12709 / K12709
Category Grade Standard Region/Area Standard Content
Metals K12709 -- America 高强度低合金钢

Chemical composition(mass fraction)(wt.%) of the K12709

Element Min Max Similar
V 0.0100 - -
Si - 0.3500 -
S - 0.0600 -
P - 0.0500 -
Mn - 1.4000 -
Cu 0.1800 - -
C - 0.2700 -

Mechanical Properties of steel grade K12709

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)
318 (≥) 478 (≥) 33 42 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade K12709

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
41 - -     0.31 -  
239 416 - 44.3 442   -  
737 - 41 21.2   411 313

Heat Treatment of steel grade K12709

Heat treated : 1576°C - 1155°C

Technological Curves of steel grade K12709

Cross Reference Table (Equivalent Grade) of K12709

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