Galvalume Steel Coil / Sheet for Roofing (CSGL)

• Standard: ASTM, JIS, GB, AISI, DIN, BS
• Certification: ISO
• Surface Treatment: Galvalume
• Technique: Cold Rolled
• Application: Construction
• Edge: Slit edge
• Model NO.: CSGL
• Stock: Stock
• Thickness: 0.18-2.5mm
• Width: 914mm,1000mm,1200,1250mm Mainly
• Coating Type: 55%Al, 43.5%Zn and 1.5%Si
• Coating Thickness(Both Side,G/Sqm): 50-150
• Surface Finish: Regular Spangle, Small Spangle
• Inside Diameters: 508mm
• Outside Diameters: as Per Customer′s Requirements
• Transport Package: Seaworthy Packing, Export Standard
• Specification: ASTM, GB, JIS
• Trademark: Dingang/OEM
• Origin: Jiangsu, China(Mainland)
• HS Code: 72106100
• Production Capacity: 5,000,000 Ton/Tons Per Year

Product Description

The hot dip galvalume steel is a kind of coated steel. With the cold rolled steel of different strength and thickness as substrate, it is produced through applying Al-Zn coat on both faces by hot dip process. In its coating, Al accounts for about 55%, Si 1.6%, while the remaining is Zn. It enjoys both the physical protective feature and durability of Al and the electrochemical protective property of Zn. And its surface has bright silver color and regular embossed-like figure, which are highly decorative. 

Chemical Requiremetns for structure steel
Composition, %-Heat Analysis Element, maximum, unless otherwise Shown
Designation	C	Mn	P	S	Cu	Ni	Cr	Mo	V	Cb	TiA	NB
G230	0.20	1.35	0.04	0.04	0.25	0.20	0.15	0.06	0.008	0.008	0.025	^
G255	0.20	1.35	0.10	0.04	0.25	0.20	0.15	0.06	0.008	0.008	0.025	^
G275	0.25	1.35	0.10	0.04	0.25	0.20	0.15	0.06	0.008	0.008	0.025	^
G340	0.25	1.35	0.20	0.04	0.25	0.20	0.15	0.06	0.008	0.008	0.025	^
G550	0.20	1.35	0.04	0.04	0.25	0.20	0.15	0.06	0.008	0.015	0.025	^