Dx51d+Z Galvanized Steel Coil Cold Rolled Steel Gi Coil Spangle Zinc Coil

Product Description

Product Description
 

Product name	Galvalume Steel Sheet in Coil
Standard	ASTM A792/A792M, JIS G 3321, EN 10346
Grade	DX51D+AZ ASTM a792
Alu-Zinc Coating	30-275G/M2
Thickness	0.12-0.7 mm
Width	100mm-1500mm
Coil ID	508/610mm
Coil weight	2.5-8tons
Surface Structure	Mini/Big Spangle
Surface Treatment	Anti-Finger printing ,Chromated, oiled/ non-oiled
Package	standard export package (Detailed picture is as follows)
Hardness	soft (normal), hard, full hard(G300-G550)
HS code	721049
Country of origin	China
Business type	Supplier and manufacturer

 

Galvalume Steel Coil Features

• Thermal Reflection:

People use it as material for heat-insulation for its thermal reflectivity as high as twice the galvanized steel sheet.

• Heat-resistance:

The aluzinc steel coil could bear above 300ºC high temperature with its good performance in heat-resistance, quite similar to the aluminized steel sheet's performance in oxidation-resistance under high temperature. It is often used for chimney pipe, oven, illominator, and fluorescent lamp cover.

• Corrosive-resistance performance:

The essential of galvalume steel coil's corrosive-resistance lies at aluminium's protective property. Once the zinc come under abrasion, the aluminium would form a layer of densified oxidized aluminium, preventing the interior from further corrosion.

• Economical:

The density of 55%AL-Zn is smaller than Zn, therefore, with the same weight and thickness of coating, the galvalume steel sheet is 3% larger in area than that of galvanized steel sheet.

• Easily painted:

There is perfect adhesiveness between galvalume sheet and paint, saving the process of pre-treatment and weathering for painting work.

The coating material on the galvalume steel sheet is outstanding in its adhesiveness, which could be directly tarring on the advertising board and commonly used board with no pre-treatment such as weathering process.

• The galvalume steel sheet's surface is luxury in silver colored appearance.
• Galvalume steel sheet and galvanized steel sheet are similar in performance of processability and painting.

Surface Treatment Of Galvalume Steel Sheet

Item	Classification	Symbol
Coating type	Al-Zn alloy	AZ
Surface finish	Regular spangle	R
	Minimized spangle	M
	Skin passed	S
Surface treatment	Chromate passivated	c
	Non-chromate passivated	C5
	Chromate passivated + oiling	CO
	Non-chromate passivated+oiling	CO5
	Anti-fingerprint	N
	Non-chromate anti-fingerprint	N5
	Non-chromate high weather resistance anti-fingerprint	NW
	Oiling	0
	No treatment	U

Aluzinc & Galvalume Steel Coil Coating Layer

Galvalume Steel Coil Grades:

HOT-DIP ALUZINC STEEL COILS
	ASTM A653M-06a	EN10327:2004	JIS G 3321-2010	AS-1397-2001
Commercial Quality	CS	DX51D+AZ	SGLCC	G1+AZ
STRUCTURE STEEL	SS GRADE 230	S220GD+AZ	SGLC400	G250+AZ
	SS GRADE 255	S250GD+AZ	SGLC440	G330+AZ
	SS GRADE 275	S280GD+AZ	SGLC490	G350+AZ
	SS GRADE 340	S320GD+AZ	SGLC570	G450+AZ
	SS GRADE 550	S350GD+AZ		G500+AZ
		S550GD+AZ		G550+AZ

 

Detailed Photos

 

 

 

Flow Chart

Decoiling - Cleaning - Annealing - Zinc pot - Cooling - Air knife - Straightening - Post-treatment - Coiling

Detailed Steps Of The Galvalume Steel Sheet Processing

Step 1:

Pre-treatment: After the cold-rolled coil arrives in the galvalume workshop, after passing through the uncoiler, through the degreasing section and the reduction furnace, the steel coil is cleaned and its components are reduced to the extent that it can be galvanized.

Step 2:

Central section: The most critical technology is this step. After passing through the zinc pot, a layer of zinc layer is plated on the surface of the steel plate. After coming out of the zinc pot, it is cooled and shaped by the cooling tower.

Step 3:

Post-processing: The steel plate finally comes to the post-processing stage after various processes. After finishing, straightening and passivation, and finally coiling.
 

Certifications

 

Quality Inspection

 

Customer Evaluation

 

Company Profile

 

Shandong Huazhu Metal Manufacture Co,.Ltd. Our Company has 227 employees including 20 professional and technical engineers. The company has eight extrusion production lines, annual production capacity reach to 20 thousand tons. we are specialized in construction profiles, decorative profiles, and industrial profiles . We have advanced anodized workshop, large powder coating workshop,electrophoresis workshop, wood grain transfer printing workshop, thermal break processing workshop . Various profiles with different surface can meet customer demand.We also welcome OEM and ODM orders.Our products sell well in domestic market, and are also exported to Southeast Asia,Africa,Europe and the Middle East.  we have advanced quality management system and obtained ISO 9001,ISO 14001 and G B/T28001,SGS certificates.  Our company insists on the policy that "customer is the supreme, prestige promised, quality guaranteed, professional service ". We are looking forward to establish a long-term business with overseas customers based on mutual benefits. If you are interested in our products or our company, please feel free to contact us for more details!

Packaging & Shipping

Standard export packing:

Fully strong export package suitable for ocean transportation, packed in waterproof paper/plastic foil, steel envelopes,strapped with metal bands, min 4 bands horizontal, 3 bands longitudinal.Add carton or steel sleeve in necessary.
1.4 eye bands and 4 circumferential bands in steel;
2.galvanized metal fluted rings on inner and outer edges;
3.galvanized metal and waterproof paper wall protection disk;
4.galvanized metal and waterproof paper around circumference and bore protection .

FAQ

Q1: Are you factory or trading company?
A: We are a manufacturer, and you will be welcomed to visit our factories.

Q2: Can you guarantee your products' quality?
A: We perform two rounds of quality tests on our products before delivery. And The Third Party test, such as SGS test, is also welcomed

Q3:What are the advantages of your company ?
A: Rich production and export experience, factory price supply, guaranteed transportation and on-time delivery, perfect pre-sales and after-sales service

Q4: What is your MOQ?
A: We welcome your trial order MOQ 1 Tons, yet the higher order means you can get a cheaper price.

Q5: What is your main market ?
A:   Africa ,Southeast Asia, the Middle East, East Europe, South America and other countries and regions.