Cold Rolled Galvanized Steel Coils Dx51d Z30-275g 0.12 - 4mm For Roofing Sheet
High Quality Dx51d Z30-275g Cold Rolled Galvanized Steel Coils for Roofing Sheet
Is cold rolled steel stronger than galvanized steel?
Cold-rolled steel has superior directional strength, which is valuable for certain high-load applications.
What is the difference between GI and hot-dip galvanized?
The key difference between galvanized and hot dip galvanized is that most galvanized materials have a smooth
and sharp finishing, whereas hot sip galvanized structures have a rough finishing. Galvanization is a process
of preventing metal surfaces from corrosion.
Which is better galvanized or hot dipped galvanized?
As mentioned, pre-galvanized components are usually only immersed in the galvanizing bath for a very short time, resulting in a relatively thin coating. The thicker zinc coating produced by hot dip galvanization offers improved rust and corrosion protection versus pre-galvanization.
Product description
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Name
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Gi Coils Hot Dipped SGCC Dx51d Metal Zinc Galvanised Sheet Roofing Materials 275GSM 2mm Thick Z150 Z120 Z80 Regular Spangle Zinc Coated Galvanized Steel Coil
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Grade
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DX51D+Z, DX52D+Z, DX53D+Z, DX54D+Z, DX56D+Z, DX57D+Z, DC51D+Z, SGCC, SGCD, S220GD+Z, S250GD+Z, S280GD+Z, S320GD+Z, S350GD+Z, S550GD+Z
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Width
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600-1500mm
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Thickness
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0.12-4mm
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Zinc coating
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30-400g/m2
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Surface treatment
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chromated / oiled/slightly oiled/ dry
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Hardness
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soft, full hard, half hard
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Spangle
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zero spangle / minimized spangle / regular spangle/ big spangle
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ID coil
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508mm or 610mm
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Coil weight
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2-8 MT per coil. According to the customer's requirements
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Package:
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Standard export package (Plastic film in the first layer,second layer is Kraft paper. Third layer is galvanized sheet)
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Application:
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Industrial panels, roofing and siding for painting
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Chemical Composition
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GRADE
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C
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Si
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Mn
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P
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S
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Ti
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SGCC/DX51D+Z
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≤0.10
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≤0.50
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≤0.60
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≤0.10
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≤0.030
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≤0.020
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DX52D+Z
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≤0.10
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≤0.50
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≤0.60
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≤0.10
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≤0.030
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≤0.020
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SGCD/DX53D+Z
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≤0.10
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≤0.30
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≤0.50
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≤0.05
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≤0.030
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≤0.020
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SGCE/DX54D+Z
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≤0.10
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≤0.30
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≤0.30
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≤0.03
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≤0.020
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≤0.020
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DX56D+Z
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≤0.10
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≤0.30
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≤0.30
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≤0.03
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≤0.020
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≤0.020
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Structural
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≤0.20
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≤0.60
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≤1.70
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≤0.10
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≤0.045
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Mechanical Properties
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GRADE
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Yield Strength MPa
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Tensile Strength MPa
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Elongation %
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SGCC(DX51D+Z)
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≥205
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≥270
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-
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SGCD(DX53D+Z)
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-
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≥270
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38
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SGCE(DX54D+Z)
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-
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≥270
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40
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DX56D+Z
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-
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≥270
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42
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Get in Touch
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