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China GB S218 不锈钢焊丝和焊带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S218 / S218
Category Grade Standard Region/Area Standard Content
Metals S218 GB/T 29713 China 不锈钢焊丝和焊带

Chemical composition(mass fraction)(wt.%) of the S218

Element Min Max Similar
N 0.0800 0.1800 -
Cu - 0.7500 -
Mo - 0.7500 -
Ni 8.0000 9.0000 -
Cr 16.0000 18.0000 -
S - 0.0300 -
P - 0.0300 -
Mn 7.0000 9.0000 -
Si 3.5000 4.5000 -
C - 0.1000 -

Mechanical Properties of steel grade S218

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)
312 (≥) 372 (≥) 13 32 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical Properties of steel grade S218

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
42 - -     0.43 -  
454 658 - 42.3 131   -  
113 - 13 21.2   433 413

Heat Treatment of steel grade S218

Heat treated : 1181°C - 1684°C

Technological Curves of steel grade S218

Cross Reference Table (Equivalent Grade) of S218

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