ASTM Z70 Prepainted Rolled Steel Coil for Construction Roofing

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Shanghai
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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.

 

 

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Q:Runescape: Money/Experience via mining (mithril vs. steel)?
Mining okorder.com/
Q:What is the maximum width of galvanized steel strip, please? The galvanized coat is 275, and how long is one coil?
As far as I know, the galvanized rolls of WISCO are wider in width than other domestic steel mills, and can produce 2080 wide steel coils.
Q:Are there different types of steel that are used in construction of beach houses that withstand corrosion?
No, usually they are just coated or galvanized. To make a steel that is truly more corrosion resistant raises it's cost quite markedly, where as coatings are pretty cheap. Almost all structural steel is just A36 mild steel (like 0.1% carbon, 0.05% Mn, and not much else). There are higher grades of structural steel, and bridges are made with truly more corrosion resistant carbon steels, but for a house it's just not the case.
Q:what is the elastic limit of steel in Nm^2?
It depends on the type of steel and how the wire was made (e.g. whether it was drawn hot or cold, whether it was heat treated after it was drawn, etc). For mild steel the elastic limit is about 400 MPa. Note this is not the same as the breaking stress for the wire which will typically be significantly higher for a ductile material like steel. If you want to measure a stress-strain curve to find youngs modulus, make sure you measure several points at stresses below the elastic limit - for example try increasing the stress in increments of about 50 MPa.
Q:What steel type Pokemon would be good against trainer red's lapras?
I found electric pokemon more effective.. but try Steelix or Riachu
Q:Why is it called Stainless Steel?
Stainless steel is not suppose to rust! If it does use Barkeepers (its comes in a can like comet but it isn`t) and you can buy it in the same section. It is called Bar Keepers friend. It is especially used on stainless steel.
Q:Galvanized Steel??
yes it does. The steel below the galvanized coating still has a relative high carbon content and magnets stick to it. Magnets do not stick to stainless steel very well though. There is a weak attraction there. If I recall correctly this is due to the relatively low carbon content and the higher content of chromium.
Q:Quality of Cold Steel Recon 1 (folding knife)?
Cold okorder.com/
Q:What grade of steel is best suited for use on ships. Specifically trawlers?
How big is your trawler going to be and what use, The ones you see off the Alaska Coast or a Gulf Coast Shrimper? My preference in today's economy would not make sense and that is Aluminum.....not steel at all, maybe even Fiberglass, but $$$$ talk so Steel is cheaper, but you need to know what you are doing. The designer of the hull should have specified the right /preferred grade. It today's world there are many more choices available. You use a mild steel, most often grade A or B, but some applications call for grade D. Check your blue prints and list of materials. Edit. Ok I understand. There are 2 ways to go. One is use a relatively cheep steel and use higher cost epoxy primers and paint, often requiring special surface preparation just before priming, or two, using a much higher cost steel with more chrome and nickel in it. Grades that begin with #3xxx These are weldable with rods that are available, and can be welded directly to mild steels. However these are 3X the cost. If your a Shrimper, I'm guessing gulf coast. I worked with several boat yards in the 70's installing spray urethane foam for insulating there holes. So I've been around lots of small yards from Florida to Texas. I'd call the nearest steel warehouse and ask what they would recommend. You might find what you want at a scrap yard. I've lucked out several times picking up 1/4 plate scrap$ and I'd bet the scrapyard guy would know just what you need. I know there are places to get what you need in Mobile and New Orleans. Good luck!
Q:Chemical equation for steel?
I hate to differ but I must. Steel is a mixture of iron and carbon but the carbon content ranges from a small fraction of a percent to no more than 2%. Stainless steel is an alloy of Iron and up to 15% or so of other metals but since there are several types and many varieties in each type it's hardly worth getting into. A good common hardenable high-carbon spring steel is AISI 1095. In this code the 95 refers to 0.95% carbon. When the carbon level goes up to 1.5% to 2% the steel is very brittle and black with the highest carbon steel being pretty much pig-iron.

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