Aluminum Zinc Alloy Coated in Coils with Anti-Finger Print for Production Roofing Sheets

• Type: Steel Coil
• Standard: ASTM, GB, JIS, DIN
• Surface Treatment: Galvanized
• Technique: Cold Rolled
• Application: Ship Plate, Boiler Plate, Container Plate, Flange Plate
• Special Use: Wear Resistant Steel
• Model NO.: Gr230
• Stock: Not Stock
• Name: Galvalume Steel Coil
• Grade: 230
• Yeild Strength: 230MPa
• Tensile Strength: 310MPa
• Elogation: 20%
• Sample: Available
• Delivery: 15-40days After Receipt Deposit
• Payment: 30% Deposit, 70% See Copy of B/L
• Weight/Container: 20-25tons
• Steel Grade: Q235B
• Transport Package: Standard Export Packing
• Specification: ASTM, JIS, GB, DIN, JIS G 3302
• Trademark: dingang or as customer′s request
• Origin: China
• HS Code: 72106100
• Production Capacity: 3, 000, 000 Tons Per Year

Product Description

Aluminum-zinc alloy coated in coils

1. Al-Zn coated steel Coil
2. Standard of Galvalume Steel Coil: JIS G3302, the Galvalume Steel strip quality can According to the Europe standard.
3. The content of the material: SPCC +AZ
4. Surface treatment of the Galvalume Steel Coil: Chromated. Oiled, bright finish, Fingerprint resistance
5. Thickness of the Galvalume Steel Coil: 0.2mm
6. Width of the Galvalume Steel Coil: 914MM
7. Coating weight: 150g
8. Galvalume Steel strip weight: As per customers' requests
9. Galvalume steel coil ID: 508mm.
10. Applications: General use, construction industry, household appliance industry, Automobile industry and industrial instruments
Package: Fancy package or as per customers' requests
11. Place of production: China

Details:

Aluminium-zinc alloy armor plate, is called Al-Zn coated plate for short Strips, 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 20~50º C 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 630º C~660º C. 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 30º C/s or so, and strips are cooled to about 60º C.

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	^