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America UNS W21018 低合金钢电弧焊条 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: W21018 / W21018
Category Grade Standard Region/Area Standard Content
Metals W21018 -- America 低合金钢电弧焊条

Chemical composition(mass fraction)(wt.%) of the W21018

Element Min Max Similar
V - 0.0500 -
Si - 0.8000 -
S - 0.0300 -
P - 0.0300 -
Ni 0.8000 1.1000 -
Mo - 0.3500 -
Mn 0.4000 1.2500 -
Cr - 0.1500 -
C - 0.1200 -

Mechanical Properties of steel grade W21018

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)
781 (≥) 471 (≥) 33 33 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical Properties of steel grade W21018

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
13 - -     0.11 -  
881 336 - 23.3 311   -  
919 - 11 44.2   231 342

Heat Treatment of steel grade W21018

Heat treated : 1915°C - 1661°C

Technological Curves of steel grade W21018

Cross Reference Table (Equivalent Grade) of W21018

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