Pre-painted rolled Steel Coil for Construction Roofing Constrution

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Loading Port:
Tianjin
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TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
25 m.t./month

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Structure of Prepainted Rolled steel Coil for Construction Roofing

 Pre-painted rolled Steel Coil for Construction Roofing Constrution

Description of 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. 

 

Main Feature of 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 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.  

Pre-painted rolled Steel Coil for Construction Roofing Constrution

 

  Pre-painted rolled Steel Coil for Construction Roofing Constrution

Specifications of 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

10MT max

Export package

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

 

FAQ of 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 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:what coating can be used on steel so it wouldn't rust when exposed to sea water?
Well our boat hulls have two types or primer, Red Lead, or a yellow colored paint I think it was zinc-chromate. And then, numerous coats of the grey (Navy) paint. US Navy, ABE5, USS Enterprise
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:Can i use an acoustic steel string as a steel-guitar?
If you decide to get a true pedal steel, plan on spending some big money. Look on eBay for a Carter Starter. It will be the best guitar to start on...and not outgrow too fast.
Q:What was the Iron and Steel Corporation of Great Britain created for?
It was a holding company that originally had 107 companies who manufactured iron or steel products in Great Britain.
Q:Why are most homes framed of wood rather than steel?
Basically, it's because wood was available first and wood is still the cheaper, more widely available material. Way back when man started building dwellings similar to what we have now, steel was not an option for the masses. The process probably hadn't even been invented or perfected yet, there was not the widespread transportation of goods that we have today either. Early shelters were not even put together with nails, they use wooden pegs because metal was so expensive and not widely available. I can't say that it would be better for the environment; it takes a tremendous amount of electricity to smelt and produce metals. And you have the emissions problems from the factories and the power generation. I'd have to do more research on that one. A managed timber stand actually reduces greenhouse gasses and every scrap of that tree can be used in one form or another. The only energy expenditures are moving the trees to the saw mill, cutting at the saw mill and transportation of the goods after that point. And that would be a lot less than the power required to make the same number of feet of steel products.
Q:Purchase Steel - For Construction Purpose?
It has been a few years since I was in the business but I have found that some steel from some countries can be quite different from the standards steel made in the US. For instance, one in 5 of my Indian made cast iron fittings would break when tightening it down. This never happened with US fittings. Even though I could take it back and get a refund, the increased price of US made materials was worth the savings in time and trouble. On a job in Columbia, the 3 inch angle iron came to us in 4 different sizes, all around three inches but not quite. This is not to say that all foreign metal is bad. One RD project I headed up we found a foreign bearing steel to be far superior to anything we could get in the states.
Q:how do you rate the hardness of steel?
There's an instrument called a hardness tester. It has a stylus which is pressed into the surface of a sample of steel with a calibrated amount of force. The distance it penetrates tells you how hard the steel is. (This is sometimes called 'indentation hardness'). The most common scale is the Rockwell Scale. Actually it gets a little complicated because there are several scales, one for tungsten carbide (the hardest man-made material), one for aluminum and brass and soft steels, and one for hardened steels. Another scale for indentation hardness is the Brinell scale. It's a little less complicated, with one scale to measure the hardness of wood, plastic, etc. as well as steel.
Q:dose oxygen peroxide rust stainless steel?
Stainless steel does not rust, but It can get dulled. Oxygen peroxide will not hurt it.
Q:Sealing stainless steel?
Make a paste from Lemon Juice and salt, scrub gently, and then rinse with water. To clean a stainless steel surface, use mild detergent,or baking soda or vinegar diluted in water. Clean, then dry with a soft cloth. Most stainless steel has a grain; if you are using any kind of an abrasive on a stainless surface, always make sure you clean in the direction of the grain. The don'ts are: Don't use bleach. Don't use steel wool unless it is an absolute last resort. Some of the fine particles can lodge in the surface of the stainless and will eventually rust, giving the appearance that the stainless itself is rusting. Don't let the following food items (ketchup, mustard, mayonnaise, lemon juice, vinegar, salt, salad dressings) remain on your stainless surfaces for any length of time. If they sit on the stainless for more than a few minutes, they may bleach it out. You can actually rub out this white area with a very fine Scotchbrite pad. Make sure you are going along the grain lines and not at right angles to them.
Q:What is the malleable temperature of carbon steel?
It's now not rather that rough. You can use your charcoal grill to do it. First construct a colossal fireplace in it after which bury the metal within the coals. It'll simplest take approximately ten minuites or so for the metal to warmth by way of. Then decide on it out of the coals with tongs and drop it right into a bucket of water. Repeat as preferred. Eventually it is going to get as brittle as glass. To repair this, you have got to anneal the steel. Again warmth the steel within the coals, simplest this time allow it keep there till the coals cross the entire manner out all by way of themselves. Next day while the entire manner cool, Take it out and blank it off. Viola!, you may have hardened metal.

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