Prepainted Galvalume Rolled Coil for Construction Roof

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
30000 m.t./month

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Structure of Prepainted Galvalume Rolled Coil

 Prepainted Galvalume Rolled Coil for Construction Roof

Description of Prepainted Galvalume Rolled Coil
Aluminum zinc coils is a kind of coated steel coil/sheet. With the cold rolled steel of different strength and thickness as substrate, it is produced through applying Al-Zn coat on both faces by hot dip process. In its coating, Al accounts for about 55%, Si 1.6%, while the remaining is Zn. Aluminum zinc coils enjoys both the physical protective feature and durability of Al and the electrochemical protective property of Zn. And its surface has bright silver color and regular embossed-like figure, which are highly decorative. 

 

Main Feature of Prepainted Galvalume Rolled Coil

1.Corrosion resistance: It mainly depends on the aluminum protection. When the zinc being worn, the aluminum will  form a dense layer of aluminum oxide, resist corrosion material to prevent further corrosion inside. 
2. Heat resistance: Aluminum zinc alloy steel sheet has excellent heat resistance, can withstand high temperatures over 300 centigrade, and is similar with aluminized steel high temperature oxidation resistance. It often used in chimney pipes, ovens, fluorescent lighting device and the device cover. 
3. Heat reflective: Galvanized steel plate heat-reflective high rate is twice as galvanized steel, often used to make insulation materials. 
4. Economy: Because density of 55% AL-Zn is smaller than the density of Zn, so in the same weight and thickness of Galvanized zinc layer, aluminum-zinc steel plate is larger area more than 3% of galvanized steel sheet. 

 

Applications of Prepainted Galvalume Rolled Coil
1. Construction and building: roofing; ventilating duct; handrail; partition panel;etc.

2. Electric appliance: refrigerator; washing machine; refrigerator; DVD;etc.

3.Transportation: oil tank; road sign; etc.
4.Agriculture:barn; etc.

5.Others:vending machine; game machine; etc.  

 

 

 

Prepainted Prepainted Galvalume Rolled Coil

 

 Prepainted Galvalume Rolled Coil for Construction Roof

 

 

Specifications of Prepainted Galvalume Rolled Coil 

Structure

Item

Thickness

Type

Feature

Laminated film

50μm

Polyethylene

Protecting from scratchs and contamination(option)

Top coat

20μm

Polyester Fluorine

Chemical resistance and formability

Primer coat

5μm

Polyester

Workability, corrosion resistance and adhesion to the primer coating

Chemical treatment

1μm

Chromate

Good adhesion and corrosion resistance

Substrate

0.2mm-1.2mm

GI.GL,AL

GI.GL,AL

Back coat

5±2μm

Epoxy

Corrosion resistance and adhesion to the substrate

 

FAQ of Prepainted Aluminum Zinc Rolled Coil for Construction

We have organized several common questions for our clients,may help you sincerely: 

1. What is the minimum order quantity ?  

Our MOQ is 50mt for each size. And we will consider to give more discount if you make big order like 1000 tons and more. Further more, the more appropriate payment term your offer the better price we can provide. 

2. How long can we receive the product after purchase?

Usually within thirty working days after receiving buyer’s advance payment or LC. We will arrange the factory manufacturing as soon as possible. The cargo readiness usually takes 15-25 days, but the shipment will depend on the vessel situation.

3. How to guarantee the quality of the products?

We have established the international advanced quality management system,every link from raw material to final product we have strict quality test;We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

 

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Q:Major disadvantage of hardened steel?
a disadvantage is the fact that the cold forming capability of this steel
Q:How much is 18k steel and gold worth?
Steel does not come in an 18k version and is worth only about $1.50/pound. 18k gold (.750 or 75% pure) is currently worth about $40.20/gram, based on the spot price of gold of $1,667/ounce at this moment.
Q:What's the best material for color coated steel coil?
Galvanized steel sheet with hot-dip galvanized or zinc plated surface.
Q:Is acrylic plastic good for bath tubs or steel ?
Acrylic or fiberglass is best, the contractor probably told you steel because it may be cheaper. Acrylic can be repaired and or painted if you decide to change colors at a later date. Steel is the older cheaper technology and cast iron is way too heavy to mess with now.
Q:Does stainless steel turn brown or bronze?
First check if the Stainless Steel is solid or just some base metal plated with SS. SS has many SAE steel grades(304,316,316L,etc) but in general most will not rust if you do not immerse in sea/salt water over long period. Some can tone to grey over time but IMO that will only add more aesthetic value to the necklace. Yes, you can shower wearing SS because sometimes I also do that wearing my SS dive watches.
Q:can I freeze steel?
Wouldn't it be easier to stick your coke in the freezer?
Q:How do you calculate density of the steel ball in grams per cubic centimeter?
Density Of A Ball
Q:Does mild steel have a high carbon content?
High carbon steel is much harder than iron. In fact, steel -is- iron with carbon in it. Mild steel has a very low carbon content and is much softer. High carbon steel is much stronger after heat treatment. However, about 2% carbon, it is considered cast iron. Mild steel contains about 0.16% to 0.29% carbon content. It has a relatively low strength but is highly malleable.
Q:how to forge damascus steel?
hand made folding knife English tip, blade of Damascus metallic sort Rose, 2,5mm thickness, no liners, teja spring embellished by using metallic report and billet surrounded of chrome metallic. A Damascus blade knife is characterised by using a wavy, mottled visual allure on the blade that’s led to by using the approach used to shape the metallic. the technique of transforming into Damascus metallic is derived from a centuries-previous forging technique used to create blades that grew to become very just about mythical of their attractiveness for power and sharpness it exchange into reported a Damascus knife ought to shrink with the aid of a rifle barrel to boot as with the aid of a hair falling on the blade.
Q:How to solve steel plate storage
Avoid steel plates touching the ground, fixing steel coils, and using pads to reduce accidental or dangerous movement.

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