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China 首钢Q/SG 4Si1 焊丝用钢盘条 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 4Si1 / 4Si1
Category Grade Standard Region/Area Standard Content
Metals 4Si1 Q/SGZGS 0294 China 焊丝用钢盘条

Chemical composition(mass fraction)(wt.%) of the 4Si1

Element Min Max Similar
C 0.0600 0.1400 -
Si 0.8000 1.2000 -
Mn 1.6000 1.9000 -
P - 0.0250 -
S - 0.0250 -
Cr - 0.1500 -
Ni - 0.1500 -
Cu - 0.1500 -
Mo - 0.1500 -
V - 0.0300 -

Mechanical Properties of steel grade 4Si1

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)
865 (≥) 411 (≥) 31 32 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 113

Physical Properties of steel grade 4Si1

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
24 - -     0.21 -  
416 664 - 43.3 314   -  
555 - 11 14.2   423 441

Heat Treatment of steel grade 4Si1

Heat treated : 1344°C - 1429°C

Technological Curves of steel grade 4Si1

Cross Reference Table (Equivalent Grade) of 4Si1

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