Rolled Prepainted Steel Coil Z75 for Construction

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50 m.t.
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30000 m.t./month

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Structure of Rolled Prepainted Steel Coil Z75 for Construction

  Rolled Prepainted Steel Coil Z75 for Construction

Description of BMT Rolled Prepainted Steel Coil for Construction
BMT 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 Zn coating on both faces by hot dip process. Its surface has bright silver color and regular embossed-like figure, which are highly decorative. 

Rolled Prepainted Steel Coil Z75 for Construction

Main Feature of Rolled Prepainted Steel Coil Z75 for Construction

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 reflective: Galvanized steel plate heat-reflective high rate is twice as galvanized steel, often used to make insulation materials. 
3. 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 Rolled Prepainted Steel Coil Z75 for Construction
1. Construction and building: roofing; ventilating duct; handrail; partition panel

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

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

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

 Rolled Prepainted Steel Coil Z75 for Construction

Specifications of Rolled Prepainted Steel Coil Z75 for Construction 


BMT Prepainted Rolled Steel Coil for Construction

Material Grade

SGCC / SGCH / DX51D+Z/DX51D+AZ etc






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




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


Dried, Chromated, Unoiled


Regular spangle , small spangle, zero spangle



Coil weight

3-15MT max

Export package

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

 FAQ of Rolled Prepainted Steel Coil Z75 for Construction

We have organized several common questions for our clientsmay help you sincerely

1. What is your guarantee against colour fading?These products can be customized according to your requirement, including zinc coating,

 printing color, roll width,  etc.

2. What is the general delivery time?

Usually it is 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 20- 25 days, but the shipment will depend on the vessel situation.

3. How do you promise the quality of the steels

We have established the international advanced quality management system ,every link from raw material to final product we have strict quality testWe 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:which companies are first hand's sellers of the steel, in the world?
Here are the top 30 steel producing companies in the world, listed by the megaton output: 1. 63.0 Mton Mittal Steel Company NV (Global) [2] 2. 46.7 Mton Arcelor (Europe) [3] 3. 32.0 Mton Nippon Steel (Japan) [4] 4. 30.5 Mton POSCO (South Korea) [5] 5. 29.9 Mton JFE (Japan) [6] 6. 23.8 Mton Shanghai Baosteel Group Corporation (China) 7. 19.3 Mton United States Steel Corporation (United States) 8. 18.4 Mton Nucor Corporation (United States) 9. 18.2 Mton Corus Group (Europe) [7] 10. 17.5 Mton Riva Group (Europe) [8] 11. 16.5 Mton ThyssenKrupp (Europe) [9] 12. 16.1 Mton Tangshan (China) 13. 13.9 Mton EvrazHolding (Russia) 14. 13.7 Mton Gerdau (Brazil) 15. 13.6 Mton Severstal (Russia) 16. 13.5 Mton Sumitomo Metal Industries (Japan) 17. 13.4 Mton SAIL (India) 18. 12.0 Mton Wuhan Iron and Steel (China) 19. 11.9 Mton Anshan (China) 20. 11.4 Mton Magnitogorsk (Russia) 21. 10.5 Mton Jiangsu Shagang (China) 22. 10.5 Mton Shougang (China) 23. 10.4 Mton Jinan (China) 24. 10.3 Mton Laiwu (China) 25. 10.3 Mton China Steel (Taiwan) [10] 26. 9.6 Mton Maanshan 27. 9.4 Mton Imidro 28. 8.7 Mton Techint 29. 8.7 Mton Usiminas (Brazil) 30. 8.5 Mton Novolipetsk (Russia)
Q:serious question! Dual-phase steel?
Looking but I would note that this stuff seems an awful lot like the techniques that have been used for making high quality swords and cutting tools for thousands of years including the famed Damacas steel. In these, the steel is heated and slowly cooled (annealed) to produce the tough matrix, then the piece is reheated and quenched to produce the hard edge. What Dual-phase seems to do is bring the process to bulk manufacture.
Q:is carbon steel a good matirial for a usable sword?
carbon steel will hold a good edge, but will corrode easily. The nicest blades I have seen are made from damascus steel (repeatedly folded over and over). It makes a blade which is good and flexible sideways, but more rigid in the cutting direction, and it holds an edge extremely well. It also looks awesome due to the grain effect from the folds, but is very expensive.
Q:Here is my dilemma, should I shoot steel case ammo in my ar15?
I would probably buy a box of 20 brass cased ones and shoot them first to see that the gun works if you really believe that steel cased/foreign ammo voids the warranty. That way you will know that the rifle is functional from the factory. My son has a Rem 700 SPS Varmint that has only fired handloads and there are a couple of other rifles that have never had a factory round in them and the manufacturers claim that hand loads void warranties too.
Q:Probability of steel hardness?
Suppose that the hardness of steel is uniformly distributed, taking on values between 50 and 80 on the Rockwell B scale. That would be... f(x) = 1/(80 - 50), 50 ≤ x ≤ 80 . . . . . 0 elsewhere Consider this following problem.. Compute the probability that the hardness of a randomly selected steel specimen is less than 60. Here, we have... P(x 60) Oh! Know that the mean and the standard deviation of the uniform distribution function are... µ = (a + b)/2 σ = (a - b)²/12 You should get... µ = 65 σ = 75 Now... P(z (60 - 65)/75) = P(z -0.07) Hence, you should get around 0.462. Good luck!
Q:steel shafted fairway woods...?
If your club has a graphite shaft in it and you want to switch to steel an option is to get a dynamic gold lite shaft. The other option is to make sure you trim the shaft to the 42 length with the gold shaft to lighten up the swing weight. You can get away with about 42 3/4 with the lite shaft. I have found steel to be very consistent in my fairway woods and don't think I'll ever go back to graphite. I have mine cut to 42 1/2 for the 3 wood and 41 1/2 for the 5 wood with Dynamic gold s300 and they're fine.
Q:shinning ammo with steel wool?
Jonathan, You won't have any problems firing the brass after you clean it with a solvent(such as brake clean) and steel wool. Keep in mind though, that brass is a soft metal. Use a less abrasive steel wool, such as 0000 to ensure you don't take too much brass off. Also, if you want your brass to be shiny, 0000 will ensure you won't have deep scratches in the brass. On a different note, there is a product called 'Flitz' that works great for polishing and cleaning up metals such as brass. It uses small abrasive particles in a liquid to polish and restore a bright finish. The ideal solution would be to run the brass through a tumbler or sonic cleaner. However, if you've only got a few cases and don't plan on using it that often they can be a bit pricy. Regards, Dustin All of the previous also applies to steel cases(just noticed they were steel), just add a good rust preventative and ensure the cases don't show any current signs of rusting as cleaning them up will most likely clean off any prior rust inhibitors. A rusted case is NOT safe to shoot.
Q:Why should you heat thicker steel before welding?
For most mild steel, it is not necessary to preheat the steel, even in thick sections. Preheating, as well as maintaining interpass temperatures is sometime used when welding high-strength or high-performance steels. This reduces the likelihood of weld cracks. Mild steel is ductile enough that weld cracks aren't usually a problem. Preheating reduces the speed at which the weld cools and solidifies. in high-strength steels, this produces a more ductile microstructure in the weld and heat affected zone, thus reducing the possibility of hot and cold cracks. This also may improve some of the mechanical properties of the H.A.Z., such as impact toughness. The slower cooling rate allows more time for hydrogen to diffuse out of the weld, reducing the potential for hydrogen embrittlement. Hydrogen is produced when water vapor reacts with the steel at high temperatures, producing iron oxide and hydrogen gas. Some steels can be damaged by even relatively small amounts of hydrogen. Electrodes used in flux core arc welding and in shielded metal arc welding often contain fluxes which tend to absorb moisture from the air. Also, rust and mill scale contain water molecules which are chemically bound to the iron atoms. Note that hydrogen embrittlement is generally not an issue with mild steel, due to it's low carbon and alloy content. Preheating also reduces shrinkage stresses, due to the slower cooling rate. This is beneficial in parts which are heavily restrained, or where distortion is a particular concern.
Q:Graphite or Steel Shafts for irons for a begginer?
I guess this is what makes horse races. In irons steel is better than graphite all day every day. Indeed graphite has come a long way but it has a longer way to go. Steel is far more stable and consistent. It is also less expensive if you care. Graphite makes sense in the driver because we are willing to sacrifice accuracy for distance. How many Pros (even theLPGA) do you see with graphite shafts in their irons ?
Q:Forge Steel Tools!How Good?
Forge Steel

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