G275 Aluminum Zinc Alloy Coil/ Strip Surface with Afp Used in Agriculture

• Standard: ASTM, JIS, GB, AISI, DIN, BS
• Certification: ISO
• Surface Treatment: Coated
• Technique: Cold Rolled
• Application: Roof
• Edge: Slit edge
• Model NO.: SGLCD
• Stock: Not Stock
• Thickness: 0.16-3.0mm
• Transport Package: standard export packing
• Specification: JIS G 3302
• Trademark: Dingang
• Origin: China
• HS Code: 72106100
• Production Capacity: 3, 000, 000 Tons per year

Product Description

Profile

The plating coat of Aluminium-zinc alloy armor plate is Zn-Al alloy, and its composition is 55% Al, 43.3% Zn and 1.6% Si. The plate is of smooth surface and excellent corrosion resistance of the atmosphere, which is 2 to 6 times higher than hot-dip galvanized sheet of the same thickness of plating coat. After through three processes, including payoff reel, crop shear and welding, enter into the continuous annealing furnace. During the annealing process, strips are heated closer to the recrystallizing temperature, and then heated to 20~50ºC above the recrystallizing temperature in the reducing furnace. After keeping the same temperature for 170s, strips are naturally cooled to the normal temperature in the slow cooling process. Afterward, strips enter into the zinc pot through the elephant's trunk and begin in the hot-dip coating process. The optimum temperature range of the plating coat is 630ºC~660ºC. Coated with aluminium-zinc alloy, strips enter into the cooling tower by the steady roll and air knife. After fast cooled with wind or water, they are directly produced into Al-Zn armor plates. The general rate of cooling is 30ºC/s or so, and strips are cooled to about 60ºC.




Production Line



Chemical Treatment
 

Surface Treatment		Chromated(Cr6)
		Chromated(Cr6) and Oiled
		Cr3 Chromated(Environmental)
		Cr3 Chromated(Environmental) and oiled
		Environmental Passivated(Chrome free) and oiled
		Environmental Passivated(Chrome free)
		Antifinger print
		Environmental Antifinger(Chrome free)
		Self-lubricating
		Oiled
		Non-treatment
Q/BQB 420-2003		EN10142:2000	EN10142:1990	JISG3302-1994	ASTMA653M-2002
DC51D+Z(St01Z,St02Z,St03Z),+ZF		DX51D+Z,+ZF	FeP02GZ,ZF	SGCC	CS type C
DC52D+Z(St04Z),+ZF		DX52D+Z,+ZF	FeP03GZ,ZF	SGCC	CS type A,type B
DC53D+Z(St05Z),+ZF		DX53D+Z,+ZF	FeP05GZ,ZF	SGCD1	FS type A,type B
DC54D+Z(St06Z),+ZF		DX54D+Z,+ZF	FeP06GZ,ZF	SGCD2	DDS
DC56D+Z(St07Z),+ZF		DX56D+Z,+ZF	DX56D+Z,ZF	SGCD3	EDDS

Coil Packing