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America UNS W21918 低合金钢电弧焊条 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: W21918 / W21918
Category Grade Standard Region/Area Standard Content
Metals W21918 -- America 低合金钢电弧焊条

Chemical composition(mass fraction)(wt.%) of the W21918

Element Min Max Similar

Mechanical Properties of steel grade W21918

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)
111 (≥) 746 (≥) 31 32 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical Properties of steel grade W21918

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
12 - -     0.22 -  
821 386 - 44.3 242   -  
258 - 43 43.2   121 312

Heat Treatment of steel grade W21918

Heat treated : 1655°C - 1757°C

Technological Curves of steel grade W21918

Cross Reference Table (Equivalent Grade) of W21918

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