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China 首钢Q/SG ER70S-M 焊丝用钢盘条 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: ER70S-M / ER70S-M
Category Grade Standard Region/Area Standard Content
Metals ER70S-M Q/SGZGS 0294 China 焊丝用钢盘条

Chemical composition(mass fraction)(wt.%) of the ER70S-M

Element Min Max Similar
C 0.0300 0.0800 -
Si 0.7000 0.9000 -
Mn 1.1000 1.4000 -
P - 0.0200 -
S - 0.0100 -
Cr - 0.1000 -
Ni - 0.1000 -
Cu - 0.1000 -
Mo - 0.1000 -
V - 0.0300 -
Ti - 0.0100 -
B - 0.0070 -

Mechanical Properties of steel grade ER70S-M

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)
165 (≥) 462 (≥) 42 22 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical Properties of steel grade ER70S-M

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
14 - -     0.23 -  
682 891 - 32.3 334   -  
943 - 23 11.2   434 422

Heat Treatment of steel grade ER70S-M

Heat treated : 1979°C - 1113°C

Technological Curves of steel grade ER70S-M

Cross Reference Table (Equivalent Grade) of ER70S-M

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