Galvanized/Galvalume Steel Coil/Sheet

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Zinc coating steel coil for roofing sheet

  • Product Type:

    Zinc coating steel coil for roofing sheet

  • Product Standard:

    AISI,ASTM,GB,JIS

  • Product Grade:

    SGCC, SGCH,DX51D, Q195,Q235, all according to the customer's request

  • Product Thickness:

    0.13-2mm

  • Remarks:

    Min trial order 25 ton each thickness

Specification

Galvanised steel is mild steel with a coating of zinc The zinc protects the steel by providing cathodic protection to the exposed steel, so should the surface be damaged the zinc will corrode in preference to the steel Galvanised steel is one of the most widely used products, used extensively in the building sector, automotive, agricultural and other areas where the steel needs to be protected from corrosion 

Hot-Dip Galvanizing or HDG is a process in which zinc bonds to steel at the molecular level to produce a four-layer corrosion-resistant finish. The first three layers are zinc-iron alloy layers that are actually harder than the base steel. The fourth or top layer is pure zinc.

Parameters

StandardAISI,ASTM,GB,JISGradeSGCC, SGCH,DX51D, Q195,Q235, all according to the customer's request
Thickness0.13-2mmWidth600-1250mm
Regular Size750-762mm,900-914mm,1000mm,1200mm,1219-1250mm all available
Tolerance+/-0.02mmZinc coatingZ30-600g/㎡
Coil ID508/610mmCoil Weight3-8 tons
TechniqueHot rolled, cold rolledPackageSeaworthy package
CertificationISO 9001-2008,SGS,CE,BVMOQ25 tons (in one 20ft FCL)
Delivery15-20 daysMonth Capacity12000 tons
Surface TreatmentOiled(O),Chromium(C),Phosphating(P),Spinpass
SpangleRegular spangle,minimal spangle, zero spangle,big spangle
Standard PackingDustproof kraft sheet
Iron packing
Angle protective
packing belt
  
RemarksMin trial order 25 ton each thickness
HRBSoft Hard(<60)
Medium Hard(60-85)
Full Hard(85-95)
  
Mechanical properties of galvanized steel
UsageGradeYield strength(MPa)Tensile strength(MPa)
Punching galvnaized steelDC51D+Z-270-500
DC52D+Z140-300270-420
DC53D+Z140-260270-380
Structure galvanized steelS280GD+Z≥280≥360
S350GD+Z≥350≥420
S550GD+Z≥550≥560
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