RAL Scale Z70 Prepainted Rolled Steel Coil for Construction Roofing

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

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Structure of RAL Scale Z70 Prepainted Rolled Steel Coil for Construction Roofing

  RAL Scale Z70 Prepainted Rolled Steel Coil for Construction Roofing

Description of RAL Scale 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. 

RAL Scale Z70 Prepainted Rolled Steel Coil for Construction Roofing

Main Feature of RAL Scale 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 RAL Scale 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.  

 RAL Scale Z70 Prepainted Rolled Steel Coil for Construction Roofing

 

Specifications of RAL Scale Z70 Prepainted Rolled Steel Coil for Construction Roofing

Product

RAL Scale Z70 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 RAL Scale 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.

 

 

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Q:is magnetic steel hygenic to produce stainless steel utensils?
Magnetic steel rusts. That's why kitchenware is often made out of stainless. You can't turn magnetic steel into stainless, sorry. Metalurgy is a complicated subject, and is all about different alloys. It's far too involved to explain in a few paragraphs here, but no, they're not interchangeable in this case unless you want to produce kitchenware that rusts.
Q:Is there Non-Corrosive stainless steel?
All stainless steel will corrode in certain conditions. Some varieties are worse than others. For instance grade 409 which is used for car exhausts (and other things) will rust. For the most suitable grade call a local steel supplier which carries stainless steel. Some of these companies will have a catalog of available grades and the appropriate uses. It would probably help to let them know what types of chemicals are present and what temperature the water is. You may want to call several suppliers, the quality of answer you get may vary quite a bit from company to company. The cost of exotic grades of stainless can be quite high. you may have to use a less appropriate grade if you can't justify the cost. If corrosion is a very serious concern for this be forewarned that stainless steels can be contaminated by contact with carbon steel (ordinary steel). I have seen rust form on stainless steel after a carbon steel bar was set down on the stainless steel. The carbon steel will leave trace amounts under prolonged contact. I have even seen signs of contamination of stainless steel direct from the supplier.
Q:Is m390 steel aka 20cv steel a tool steel?
Congratulations you can read a table of steels. Yes M390 is a tool steel. Blades is one application as is the manufacture of injection moulding tools.
Q:For those metal experts out there, steel or stainless steel.?
Whilst doing a welding course a few years ago the teacher said stainless steel was not its proper name,it is called Heat and Corossion resistant steel,it come in different grades related to its corossion resistance,priced accordingly.Must be welded properly without introduction of carbon to the weld (carbon pickup) or the weld might not be there next time you look dependant on environment.Generally harder to form than mild steel (low carbon steel) so it will tend to be stronger than lcs for the same cross section.steve
Q:How to tell if something is Steel?
If it rusts, magnetic, hard, heavy with high melting point I reckon yourve found mild steel.
Q:Besides stainless steel....?
Silver, white gold and titanium are quite common.
Q:What elements are steel guitar strings made of?
Steel is usually mainly made up of Iron (Fe) element, but it can also include Carbon (C) for a stronger steel or Nickel (Ni) for stainless steel.
Q:What is so special about Japanese steel?
I doubt japanese steel has any special quality in its own, but they might just be higher quality shears. For example, Chinese qualities are good depending on what they are, but are usually not professional made with the greatest equipment. Same for Mexico. The company that makes them might just put more effort into making sturdier and sharper shears and thus make them more expensive, but Corona might make them a bit better so they are priced less than Corona's.
Q:mild steel properties?
Be *real cautious* using HCL round stainless. A lowering acid like HCL will wreck down the oxide layer on the stainless, and corrosion will proceed. So far as i do know, there is not any scale down level at which HCL will not attack the skin oxide, however at very low concentrations maybe somewhat rust/pitting/corrosion is not going to be a main issue. Oxidizing acids like nitric, and to a couple measure sulfuric, will passivate stainless under the right conditions. But on simple, mild steels, corrosion will proceed to form FeCl and FeSO4 corrosion merchandise. The corrosion will haven't any outcomes on tensile, hardness or affect until ample fabric has been eliminated via corrosion to make a measurable change. Hydrogen embrittlement is a likelihood if there's constant anxiety, and hydrogen is advanced in corrosion. Whether or not it is a challenge would rely on the drawback.
Q:are surgical stainless steel and surgical steel the same thing?
yes they are same kind of steel

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