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

Min.Order: 5

Product origin: Changzhou, Jiangsu, China

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US$ 850

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

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