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America UNS K21370 合金钢焊条 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: K21370 / K21370
Category Grade Standard Region/Area Standard Content
Metals K21370 -- America 合金钢焊条

Chemical composition(mass fraction)(wt.%) of the K21370

Element Min Max Similar
Zr - 0.1000 -
V - 0.0300 -
Ti - 0.1000 -
Si 0.2500 0.6500 -
S - 0.0080 -
P - 0.0120 -
Ni 1.0000 2.8000 -
Mo 0.3000 0.6000 -
Mn 1.4000 2.3500 -
Cr - 0.6000 -
C - 0.1300 -
Al - 0.1000 -

Mechanical Properties of steel grade K21370

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)
414 (≥) 329 (≥) 11 12 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 343

Physical Properties of steel grade K21370

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
14 - -     0.42 -  
756 379 - 42.3 334   -  
869 - 33 13.2   241 441

Heat Treatment of steel grade K21370

Heat treated : 1542°C - 1995°C

Technological Curves of steel grade K21370

Cross Reference Table (Equivalent Grade) of K21370

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