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  • G90 Galvanized Coil
  • G90 Galvanized Coil
  • G90 Galvanized Coil

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G90 Galvanized Coil
Galvanized coil is made by using hot-rolled or cold-rolled steel strip as the substrate, removing impurities such as surface oxide scale through acid washing, and then uniformly covering a layer of zinc on the surface of the steel strip through hot-dip galvanizing or electroplating process. The zinc layer of hot-dip galvanized coils is relatively thick, usually between 60-120 grams per square meter, and has excellent corrosion resistance, which can effectively resist the erosion of harsh environments such as moisture, acid and alkali
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PRODUCT DETAILS

Parameter

Galvanized Coil
Width500-1250mm
Thickness0.12-3.0mm
ToleranceThickness& Width:+/-0.02mm
Zinc coating20-275g/m2
Package weight3.5 -9 ton per coil
Grade AvailableSGCC,  SGCH,  SGHC,  DX51/52/53D,  ST12,  CS/FS,  SGC340/400/440,  SGH340/400/440,  S220/250/280/320/350GD,  SS33/40/50,  etc
Standard RelatedJIS G3302,  GB T2518,  ASTM A653,  EN 10346,  etc.
Spangle Type
Zero spangle,  Mini/Small spangle,  Regular spangle, Big spangle.
Surface TreatmentOiled, Chromated,  Skin-pass,  Matt/Bright,  etc.
Material HardnessFull Hard(HRB＞85),  Medium Hard(HRB60-85),  Soft(HRB＜60)
Production ApplicationRaw material for PPGI,  Pipe-making,  C/Z Purlins,  Decking sheet,  Corrugated sheet,  Household appliance,  Furniture,  Transportation facility,  etc.

Chemical Composition

bse metal typeGradeCHEMICAL COMPOSITION %
CSiMnP
cold rolled steel sheetDC51D+Z (St01Z, St02Z, St03Z) , DC51D+ZF≤0.10-≤0.50≤0.035
DC52D+Z (St04Z), DC52D+ZF≤0.08-≤0.45≤0.030
DC53D+Z (St05Z), DC53D+ZF≤0.08-≤0.40≤0.030
DC54D+Z (St06Z), DC54D+ZF≤0.01≤0.10≤0.30≤0.025
DC56D+Z (St07Z), DC56D+ZF≤0.01≤0.10≤0.30≤0.025
hot rolled steel sheetDD51D+Z (St01ZR, St02ZR)≤0.10-≤0.50≤0.035
DD54D+Z (St06ZR)≤0.01≤0.10≤0.30≤0.025

Mechanical Properties

UsageGradeYield Strength (MPA)Tensile Strength (MPA)Elongation rate %
Punching galvanized steelDX51D+Z~270-500>=20
DX52D+Z140-300270-420>=22
DX53D+Z140-260270-380>=26
DX54D+Z140-220270-350>=30
Structure galvanized steelS220GD+Z>=220>=300>=18
S250GD+Z>=250>=330>=17
S280GD+Z>=280>=360>=16
S320GD+Z>=320>=390>=15
S350GD+Z>=350>=420>=14
S400GD+Z>=400>=470~
S500GD+Z>=500>=530~
S550GD+Z>=550>=560~

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