SGC 570 Hot Dipped Galvanized Steel Strip Zinc Coated Steel Coils
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) |
|---|
451 (≥) | 314 (≥) | 13 | 43 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 143 |
Physical performance parameters of JIS SGC 570 JIS G3302 are mainly
indicated by thermal conductivity, specific thermal capacity,
modulus of elasticity, coefficient of thermal expansion, electrical
resistance value, density, poisson's ratio, etc. parameters of JIS
SGC 570 JIS G3302.
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 |
|---|
43 | - | - | | | 0.33 | - | |
239 | 312 | - | 34.3 | 233 | | - | |
487 | - | 33 | 42.2 | | | 231 | 214 |
SGC570 cold rolled galvanized steel sheet,SGc570 hot dip galvanized
steel plate,SGC570 galvanized steel coil owned the highest tensile
strength at above 570 Mpa among galvanized steel grades in steel
standard JIS G3302.galvanized steel sheet SGC570 contains max
0.30,this cause its higher tensile strength when rolling.
Hot-dip galvanized steel plate and coil sgc570 is for extra deep
drawing quality.After rolled,Chemical passivation for sgc570 is
chosed by customers,Chemical passivation protects the surface
against humidity and reduces the risk of formation of white rust
during transportation and storage in open yard.Local discolouring
as a result of this treatment is permissible and does not impair
the quality for galvanized steel SGC 570.
Introduction of mechanical properties JIS SGC 570 JIS G3302:
Yield point(σs) When the stress of JIS SGC 570 JIS G3302 or
specimen exceeds the elastic limit in tension, even if the stress
does not increase, the JIS SGC 570 JIS G3302 or specimen will
continue to undergo obvious plastic deformation. This phenomenon is
called yielding, and the minimum stress value when yielding occurs
is called yield point.
Tensile Strength(σb) : The maximum stress of JIS SGC 570 JIS G3302
during tension from the beginning to the time of fracture. It
indicates the ability of JIS SGC 570 JIS G3302 to resist fracture.
Elongation(δs) : The percentage of the plastic elongation length to
the original sample length is called elongation.
Yield-strength ratio(σs/σb) : The ratio of yield point (yield
strength) to tensile strength of JIS SGC 570 JIS G3302 is called
its yield strength ratio. The greater the yield-strength ratio, the
higher the reliability of structural parts.
Hardness : Hardness is the ability of JIS SGC 570 JIS G3302 to
resist hard objects pressing into its surface. The higher the
hardness, the better the wear resistance.
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