PPGI for metal roofing

Product Type:
PPGI for metal roofing
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

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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

Standard	AISI,ASTM,GB,JIS	Grade	SGCC, SGCH,DX51D, Q195,Q235, all according to the customer's request
Thickness	0.13-2mm	Width	600-1250mm
Regular Size	750-762mm,900-914mm,1000mm,1200mm,1219-1250mm all available
Tolerance	+/-0.02mm	Zinc coating	Z30-600g/㎡
Coil ID	508/610mm	Coil Weight	3-8 tons
Technique	Hot rolled, cold rolled	Package	Seaworthy package
Certification	ISO 9001-2008,SGS,CE,BV	MOQ	25 tons (in one 20ft FCL)
Delivery	15-20 days	Month Capacity	12000 tons
Surface Treatment	Oiled(O),Chromium(C),Phosphating(P),Spinpass
Spangle	Regular spangle,minimal spangle, zero spangle,big spangle
Standard Packing	Dustproof kraft sheet Iron packing Angle protective packing belt
Remarks	Min trial order 25 ton each thickness
HRB	Soft Hard(<60) Medium Hard(60-85) Full Hard(85-95)
Mechanical properties of galvanized steel
Usage	Grade	Yield strength(MPa)	Tensile strength(MPa)
Punching galvnaized steel	DC51D+Z	-	270-500
	DC52D+Z	140-300	270-420
	DC53D+Z	140-260	270-380
Structure galvanized steel	S280GD+Z	≥280	≥360
	S350GD+Z	≥350	≥420
	S550GD+Z	≥550	≥560