• ASTM Z70 Prepainted Rolled Steel Coil for Construction Roofing System 1
  • ASTM Z70 Prepainted Rolled Steel Coil for Construction Roofing System 2
  • ASTM Z70 Prepainted Rolled Steel Coil for Construction Roofing System 3
  • ASTM Z70 Prepainted Rolled Steel Coil for Construction Roofing System 4
  • ASTM Z70 Prepainted Rolled Steel Coil for Construction Roofing System 5
ASTM Z70 Prepainted Rolled Steel Coil for Construction Roofing

ASTM Z70 Prepainted Rolled Steel Coil for Construction Roofing

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
50 m.t.
Supply Capability:
28000 m.t./month

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Structure of ASTM Z70 Prepainted Rolled Steel Coil for Construction Roofing

  ASTM Z70 Prepainted Rolled Steel Coil for Construction Roofing

Description of ASTM Z70 Prepainted Rolled Steel Coil for Construction Roofing
Prepainted Rolled steel Coil 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. 

ASTM Z70 Prepainted Rolled Steel Coil for Construction Roofing

Main Feature of ASTM Z70 Prepainted Rolled Steel Coil for Construction Roofing

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 ASTM Z70 Prepainted Rolled Steel Coil for Construction Roofing
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.  

 ASTM Z70 Prepainted Rolled Steel Coil for Construction Roofing

 

Specifications of ASTM Z70 Prepainted Rolled Steel Coil for Construction Roofing 

Product

Prepainted Rolled steel Coil for Construction Roofing

Material Grade

SGCC / SGCH  / DX51D+AZ, etc

Thickness

0.2-3.0mm

Width

600-1500mm

Tolerance

Thickness: +/-0.02mm , Width:+/-2mm

Zinc-coating

AZ40-150g/m2

Technique

Raw material: Hot rolled steel coil --> Cold rolled_>hot dipped galvalume

Surface

Dried, Chromated, Unoiled

Spangle

Regular spangle , small spangle, zero spangle

ID

508MM

Coil weight

25MT max

Export package

Cardboard inner sleeves, Waterproof paper, galvanized steel covered and steel strip packed

 FAQ of ASTM Z70 Prepainted Rolled Steel Coil for Construction Roofing

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 color. And we could give more discount if you make big order like 1000 tons and more. Further more, the more appropriate payment term your can  offer the better price we can provide.

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

Usually within thirty working days after received 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.

 

 

Q:what is the porpose of preheating mild steel prior to welding
ok dont listen to bob the builder down there, u preheat thicker steels to draw moisture out of them. take a propane torch to something exposed to just atmospheric air around 3 inches thick and the water will literally pour out of it. do u want that in ur weld? no. so u preheat to draw any moisture or contaminates out of the base metal. good luck.
Q:Hey guys do you know anything about Steel Arch Building and how this structure really looks like?
Just google steel arch building, you will get plenty of selection , pictures, prices and designs
Q:Which of the two are better for exhaust manifolds, im guessing the stainless steel right?
For strength, cast iron (that's why OEM exhaust manifolds are made out of it). For performance, stainless steel. For one, stainless steel headers are lighter than cast iron ones. Then they come in multiple arrangements, (4-2-1 or 4-1 for 4 cylinder motors). The down fall is strength. Hit a pot hole with the collector of a stainless steel header. It's going to have a nice dent in it.
Q:How are steel coils used in the agricultural sector?
Steel coils are used in the agricultural sector for various purposes such as manufacturing machinery, constructing storage facilities, and creating equipment like irrigation systems and grain bins. They provide strength, durability, and flexibility to support the demanding needs of the agriculture industry.
Q:Steel sticks- it has meaning to us -similar to my deceased father's name, Steven fits our style as people. We like the hardness of it for our little man. We need a middle name though. Open to suggestions, thank you=)
Steel Remington Tompkins Steel Ryder Tompkins Steel Sargent Tompkins Steel Thor Tompkins
Q:How are steel coils used in the manufacturing of wires?
Steel coils are used in the manufacturing of wires by being fed into wire drawing machines, where they are gradually reduced in diameter through a series of dies. The steel coils serve as the initial raw material, providing the necessary strength and flexibility for the wires to be produced.
Q:How are steel coils used in the production of pressure vessels?
Steel coils are used in the production of pressure vessels as they provide a strong and durable material for constructing the vessel's shell. The coils are typically formed and welded to create the cylindrical shape of the vessel, ensuring it can withstand high pressure and contain fluids or gases safely.
Q:What is the role of steel coils in the production of conveyors?
Steel coils are used in the production of conveyors as they serve as the main structural component for supporting and guiding the conveyor belt. These coils are typically formed into a cylindrical shape and act as a sturdy foundation for the belt to rest on. Additionally, the strength and durability of steel coils ensure that the conveyor can withstand heavy loads and constant movement, making them essential for efficient and reliable conveyor systems.
Q:Guitar?I have a steel- string, but prefer nylon.:)
Steel string 4 playing wid plectrum, nylon 4 finger style playing
Q:What are the weight ranges for steel coils?
The weight ranges for steel coils vary widely depending on the specific type and purpose of the coil. Generally, steel coils can range anywhere from a few hundred pounds to several tons in weight.

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