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China 首钢Q/SG SGM-80-N 焊丝用钢盘条 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SGM-80-N / SGM-80-N
Category Grade Standard Region/Area Standard Content
Metals SGM-80-N Q/SGZGS 0294 China 焊丝用钢盘条

Chemical composition(mass fraction)(wt.%) of the SGM-80-N

Element Min Max Similar
C 0.0400 0.1000 -
Si - 0.3000 -
Mn 1.4000 1.7000 -
P - 0.0100 -
S - 0.0080 -
Mo 0.3000 0.6000 -
Ti 0.0300 0.0900 -
B 0.0020 0.0070 -

Mechanical Properties of steel grade SGM-80-N

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)
618 (≥) 646 (≥) 43 41 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade SGM-80-N

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 -  
362 147 - 42.3 424   -  
565 - 44 14.2   132 322

Heat Treatment of steel grade SGM-80-N

Heat treated : 1288°C - 1623°C

Technological Curves of steel grade SGM-80-N

Cross Reference Table (Equivalent Grade) of SGM-80-N

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