Hot Dipped Alumzinc Coated Steel Coil

• Customization: Available
• Standard: ASTM, JIS, GB, AISI, DIN, BS
• Certification: ISO, RoHS, IBR
• Model NO.: Dingang
• Technique: Cold Rolled
• Application: Building and Construction
• Edge: Mill
• Stock: Not Stock
• Thickness: 0.16-3.0mm
• Width: Upon Customer′s Requirement
• Length: Upon Customer′s Requirement
• Sample: Available
• Transport Package: Seaworthy Packing
• Specification: 0.18-1.2*914-1250mm
• Trademark: Dingang
• Origin: China Jiangsu
• HS Code: 72106100
• Production Capacity: 1000000 Ton/Year

Product Description

Who We Are?


Dingang/Senruida has been a professional manufacturer and experienced exporter of new material,focuses on R&D,manufacturing,processing high-end roller-coating aluminium coil material products since 2002.

For the past decades,we've been growing rapidly in the industry,owning two plants of 160,000 SQM,with eight large automatic roller coating lines for aluminium sheet material products.In addition,we have stretching-bending rectifier,cleaning,draw bench,embossing,cross-cutting and vertical slitting machines.With an annual deep processing capacity of more than 20,000 tons. Over 300 skillful workers,with over 200 major projects completed worldwide,our workers pride themselves in production high quality products and taking on projects with a high level of difficulty in fabrication and coating.

In our trade with merchants of various countries,we always adhere to the principle of equality and mutual benefit.It is our hope to promote,by joint efforts,both trade and friendship to our mutual advantage.


Production Introduction
Galvalume steel is the plating coat of aluminum-zinc alloy armor plate,and its composition is 55% Al,43.3% Zn and 1.6% Si.The plate with 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 coating.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 20~50 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 ZN-AL pot through the elephant's trunk and begin in the hot-dip coating process.The optimum temperature range of the plating coat is 630-660ºC.Coated with aluminum-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 30/s or so,and strips are cooled to about 60.
 
Standard: ASTM A792,JIS G3321,GB/T14978-2008,EN10326-2004
Grade: SGLCC,SGLCD,SGLCDD,SGLC400~SGLC570,DC51D+AZ~DC54D+AZ
Thickness: 0.15-2.5mm
Width: 600-1250mm(Usual:914mm,1219mm,1220mm,1250mm)
Base Metal: Cold-Rolled Steel
Al-Zinc Coating: Coil Internal Diameter
Coil Internal Diameter: Coil Internal Diameter
Surface Treatment: Chromate Passivated,Non-Chromate Passivated,Oiled,Anti-Finger Print And Etc.
Tolerance: Thickness:+/-0.05mm,Width:+5/-2mm,Total Quantity:+/-10%,Alu-Zinc Coating:+/-10%
 
Surface Finish And Treatment

Item	Classification	Symbol
Coating Type	Al-Zn Alloy	AZ
Surface Finish	Regular Spangle	-
	Skin Passed Spangle	S
	Minimized Spangle	-
Surface Treatment	Chromate Passivated	C
	Non-Chromate Passivated	C5
	Chromate Passivated + Oilling	CO
	Non-Chromate Passivated + Oilling	CO5
	Anti-Finger Print	N
	Non-Chromate & Anti-Finger Print Treatment	N5
	Oilling	O
	No Treatment	U