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America UNS W37440 沉淀硬化铬镍铜合金不锈钢合成焊接填充金属 (17- and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: W37440 / W37440
Category Grade Standard Region/Area Standard Content
Metals W37440 -- America 沉淀硬化铬镍铜合金不锈钢合成焊接填充金属 (17-

Chemical composition(mass fraction)(wt.%) of the W37440

Element Min Max Similar
Si - 0.7500 -
S - 0.0300 -
P - 0.0400 -
Ni 4.5000 5.0000 -
Mo - 0.7500 -
Mn 0.2500 0.7500 -
Cu 3.2500 4.0000 -
Cr 16.0000 16.7500 -
Cb 0.1500 0.3000 -
C - 0.0500 -

Mechanical Properties of steel grade W37440

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)
749 (≥) 918 (≥) 41 34 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 343

Physical Properties of steel grade W37440

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 - -     0.31 -  
346 247 - 41.3 224   -  
825 - 44 14.2   134 244

Heat Treatment of steel grade W37440

Heat treated : 1375°C - 1156°C

Technological Curves of steel grade W37440

Cross Reference Table (Equivalent Grade) of W37440

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