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America UNS K31240 合金钢焊条 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: K31240 / K31240
Category Grade Standard Region/Area Standard Content
Metals K31240 -- America 合金钢焊条

Chemical composition(mass fraction)(wt.%) of the K31240

Element Min Max Similar

Mechanical Properties of steel grade K31240

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)
788 (≥) 656 (≥) 33 23 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

Physical Properties of steel grade K31240

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
21 - -     0.44 -  
249 845 - 43.3 422   -  
795 - 22 42.2   443 144

Heat Treatment of steel grade K31240

Heat treated : 1993°C - 1442°C

Technological Curves of steel grade K31240

Cross Reference Table (Equivalent Grade) of K31240

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