Prepainted Rolled Steel Coil Z80 for Construction Roofing Constrution

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Tianjin
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TT OR LC
Min Order Qty:
50 m.t.
Supply Capability:
30000 m.t./month

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Structure of Prepainted Rolled Steel Coil Z80 for Construction Roofing Constrution

 Prepainted Rolled Steel Coil Z80 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. 

Prepainted Rolled Steel Coil Z80 for Construction Roofing Constrution

Prepainted Rolled Steel Coil Z80 for Construction Roofing Constrution

Prepainted Rolled Steel Coil Z80 for Construction Roofing Constrution

 

Main Feature of Prepainted Rolled Steel Coil Z80 for Construction Roofing Constrution

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; indoor and out decking;partition panel;etc.

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

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

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

Prepainted Rolled Steel Coil Z80 for Construction Roofing Constrution

 

  

Specifications of Prepainted Rolled Steel Coil Z80 for Construction Roofing Constrution 

Product

Prepainted Rolled steel Coil for Construction Roofing

Material Grade

SGCC / SGCH  / DX51D+AZ /DX51D+Z, etc

Thickness

0.2-3.0mm

Width

500-1500mm

Tolerance

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

Zinc-coating

AZ30-150g/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, 610MM

Coil weight

1-25MT max

Export package

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

 

FAQ of Prepainted Rolled Steel Coil Z80 for Construction Roofing Constrution

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:Buoyancy question. Why does a steel nail sinks but a steel ship floats.?
Its all about dispersing.weigh and mass. Over a larger area .And the surface tention of the water.A piece of glass will float as long as the water is calm. and doesn't break over the edge of the glass. I don't remember the formula. been away from school to long.
Q:Is Galvanized Steel a raw material?
No, because first of all galvinizing is coating the steel with zinc to prevent oxidation. Iron is a raw material, as is zinc, carbon. Other metals may be combined with the iron and carbon, including vanadium and chromium.
Q:How to temper steel? ?
Heat treating easy, HA! It is the most critical part of bladesmithing. Done wrong and all those hours of work go up in smoke (or a snap of the steel). You'll need a bucket of oil, preferably one that is deep enough to go in point first. If not you'll have to go in edge first, not recommended on a double edged blade, ok for single edge. You'll need to build a charcoal fire long enough for the blade. You will need to blow air under the fire to get it hot enough, the challenge is getting the heat even. You get the fire going and established, put the blade in turning it back and forth (if you keep turning it in the same direction when it heats up you could work a twist in it). When it starts turning red pull it out and touch it with a magnet, if the magnet sticks put it back. Keep heating and repeating until the magnet no longer sticks. Heat a little more, then quench rapidly point first. Don't let the blade lean to one side as warpage will occur. When it cools enough to touch, check with a file. If the doesn't file cut then you've properly hardened the steel and it's ready for temper. Now comes the really hard part. Grind the scale off carefully,preferably with a side grinder with a flap wheel. I've had hard wheel break freshly hardened blades. After cleaning you'll need to put it in an oven (preferred) or use a torch and carefully heat the blade. Watch the temper colors (oven temp 500-550F) or with the torch as the steel turns colors blue to purple for a double edged weapon. Any warpage that occurs needs to be worked out at temping temp.
Q:What is the accuracy of steel tape inspection
In addition, the project is through the detection of steel tape, steel tape each batch have the error him different, so do projects each into a batch of steel tape has to go through the inspection department, let this batch of steel tape has reached the same error range. All the measuring tools in this project are unified into these steel tape measures, so that the measurement error is guaranteed
Q:Steel shafted woods vs Graphite woods?
I'd be very surprised if there are any tour players still using steel shafts on their woods (I did actually see Tiger with a steel shaft on a driver during a clinic in 2002). Top end graphite shafts have gotten so much better there's just no reason for pros not to use them anymore. That being said, I use a 45 True Temper stiff steel shaft in my driver (Cobra X-speed, 9.5*). Graphite is longer than steel, but the distance I've lost is minimal (maybe 10 yards and I still put it out there 250+ consistently). The extra weight has actually helped me stay in control which has improved my overall driving considerably, and the very low torque in a steel shaft has paid off huge in accuracy. You're paying minimum $60 (or more) for a graphite shaft with a similar torque rating to any steel shaft. I hit easily twice as many fairways since the switch. I've even switched out my other fairway woods too, the feel and control are so much nicer. I've considered going with a 46 on the driver to try to regain some of the distance, and at $7 per shaft I can actually just go do that whenever I want. Don't get me wrong, if I were playing for money or flirting with par I'd invest in good quality graphite stuff no question, but it doesn't make sense to me right now. I'd recommend to anyone looking for more consistency out of their woods to take $20 to your golf shop and try it out. It's a lot cheaper than the alternatives.
Q:which is heavier: concrete or steel?
The denisty of reinforced concrete is taken to be 150 lbs/ft^3 The density of carbon structural steel is 490 lbs/ft^3
Q:What oil to use on knife steel?
If the knife is stainless steel, then you don't have to worry about it rusting, unless you leave it sheathed in a wet sheath. Be sure you clean it off before folding it up or re- sheathing it. For carbon steel blades, almost any good household oil will work. 3 in 1, Rem oil, etc.
Q:What metals is surgical stainless steel made of?
surgical stainless steel is an austenitic steel containing 18-20% chromium and 8-10% nickel. and some proportion of molybdenum. The word 'surgical' refers to the fact that these types of steel are well-suited for making surgical instruments: they are easy to clean and sterilize, strong, and corrosion-resistant. The nickel/chrome/molybdenum alloys are also used for orthopaedic implants as aids in bone repair, and as a structural part of artificial heart valves and other implants. However, immune system reaction to nickel is a potential complication. In some cases today titanium is used instead in procedures that require a metal implant which will be permanent. Titanium is a reactive metal, the surface of which quickly oxidizes on exposure to air, creating a microstructured stable oxide surface. This provides a surface into which bone can grow and adhere in orthopaedic implants but which is incorrodible after implant. Thus steel may be used for temporary implants and the more expensive titanium for permanent ones
Q:question on fatigue testing of steels?
because metals, like steel, are ductile and will stretch before breaking. Straining the metal is stretching it, stressing the metal is applying a shearing force or bending until there is an actual metal failure. A sheet metal strap 1inch across and 24 gauge metal is commonly used to support metal ducting systems in construction. These have an average strain to failure weight load as high as 16,200 lbs. As reported by the smacna index, they will safely hold 6800 pounds. Of more interest is the screws used to hold the strap to the duct. While they are grade 3, fairly strong, they strain to 1400 pounds when properly installed, and are safely able to support 650 pounds, unless they are overtorqued (stripped) and this quickly drops to 400 pounds and 125 pounds...big difference.
Q:Do steel cartridge cases take less pressure than brass cases?
The ammo loaded in steel casing has a tendency to be loaded at lower pressures, for some reason. Most if not all of the steel case is of foreign manufacture. No reason steel can't be loaded to same pressures to that of brass, would probably seal better. Most of the calibers you describe in steel cases go in weapons with loose tolerances, like the AK. Lot of times, the steel won't seal in the chamber, creating blow by, putting crud in the chamber. This condition makes it hard to feed, chamber, and extract in a tight dimension chamber that is present in NATO weapons. AK's, due to more generous tolerances, won't be sensitive to this.. Weapons from NATO are of more tightly toleranced chambers like the AR, HK, Barret, etc. where brass is more reliable in sealing, and minimizes the blow by and keeps things clean, or at least more clean than a steel case that may not seal.

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