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China GB S420 不锈钢焊丝和焊带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S420 / S420
Category Grade Standard Region/Area Standard Content
Metals S420 GB/T 29713 China 不锈钢焊丝和焊带

Chemical composition(mass fraction)(wt.%) of the S420

Element Min Max Similar
Cu - 0.7500 -
Mo - 0.7500 -
Ni - 0.7500 -
Cr 12.0000 14.0000 -
S - 0.0300 -
P - 0.0300 -
Mn - 0.6000 -
Si - 0.5000 -
C 0.2500 0.4000 -

Mechanical Properties of steel grade S420

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)
561 (≥) 439 (≥) 42 44 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade S420

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
23 - -     0.12 -  
386 712 - 24.3 422   -  
511 - 31 42.2   213 311

Heat Treatment of steel grade S420

Heat treated : 1272°C - 1859°C

Technological Curves of steel grade S420

Cross Reference Table (Equivalent Grade) of S420

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