PPGI/HDGI prepaid Galvanized steel coils

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Loading Port:
Shekou
Payment Terms:
TT OR LC
Min Order Qty:
50 m.t.
Supply Capability:
10000 m.t./month

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Product Description:

Product Description :

 

Raw material

SGCC, SPCC, DC51D, SGHC,A653

Certificate

ISO9001.ISO14001.OHSAS18001

Thickness

0.16mm-0.7mm

Width

1250mm or under

Tolerance

thickness+/-0.01mm

Surface treatment

galvanized / galvalumized steel sheets

T Bending (top-coating)

T Bending (back-coating)

3T

≤4T

Anti-MEK Wiping

100times

Zinc coating

40-180g

Type of coating structure

2/1 or 2/2 coating, or customized

Standard

GB/T12754-2006, GB/T9761-1988, GB/T9754-1988, GB/T6739-1996, HG/T3830-2006, HG/T3830-2006, GB/T1732-93, GB/T9286-1998, GB/T1771-1991, GB/T14522-93

Color

customized

Application

Building industry ,structural use, roofing, commercial use ,household appliance,industry facilities,office buildings

 

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Q:what happen if carbon steel is exposed to an oxygen?
Assuming the steel isn't actually melted, two things will happen. First, a layer of iron(ii) oxide, FeO will slowly develop on the surface, getting thicker over time. This layer is usually poorly bonded to the metal surface, it tends to flake off, exposing fresh metal. This is known as mill scale, it's also known as wustite which is the mineral term. Second, the surface of the steel will become decarburized, essentially becoming pure iron, not steel. The depth of the decarburized layer depends on the temperature, time, and the diffusivity of carbon in the steel at the given temp. This has some implications to engineering, in hot-rolling or forging of steel shapes for example. It's often the case that the stress and strain in a material is greatest at or near the surface. Therefore the weakened, decarburized layer at the surface may have a much greater detrimental effect on the steel's performance than might be expected. In a more specific example, die and tool steels depend on their carbon content for their strength and wear resistance, Therefore if such steels are heated in an oxidzing atmosphere, wear resistance is totally destroyed: The thin decarburized iron layer will be extremely soft and malleable.
Q:Painting Stainless Steel......?
I've also learned something today! Good luck and have fun!
Q:Stainless steel?????????
Ghost rider is sort of right. Yes, if you want to change the bulk composition, you need to melt it to add different elements. However, If you just want to provide some improved corrosion protection (and money is no object) there are all sorts of things that are technically possible that will provide different surfaces with different corrosion characteristics. It depends on exactly what type of corrosion you are worried about. The details also depend, of course, on exactly what regular steel you are talking about. There are hundreds of different commercial steel alloys so you need to be specific. In general, you can galvanize (coat with Zn), electroplate with Ni or Cr or Sn or gold or etc, you can do carburization, ion nitriding, carbo-nitriding, (these are surface hardening technologies which will influence corrosion performance).
Q:Will this steel rust?
stainless steel also rusts it just takes longer to. what you have is just a higher grade of steel, which isn't stainless anyways so yeah wipe it clean when you're done.
Q:Red steel games don't look alike...?
Red Steel 2 isn't really a sequel to Red Steel 1 in a normal sense. The reason the new one is named Red Steel 2 is because of the Sword + Gun combat, which was also in the first game (even though the sword part wasn't good in the first one). Other than that, I'm guessing Ubisoft just wanted to take a different, less realistic approach with it.
Q:What knife steel will last the longest?
Hard okorder.com/: The nature, composition, and thickness of the protective surface oxides that form on titanium alloys depend on environmental conditions. In most aqueous environments, the oxide is typically TiO2, but may consist of mixtures of other titanium oxides, including TiO2, Ti2O3, and TiO. High-temperature oxidation tends to promote the formation of the chemically resistant, highly crystalline form of TiO, known as rutile, whereas lower temperatures often generate the more amorphous form of TiO, anatase, or a mixture of rutile and anatase. Although these naturally formed films are typically less than 10 nm thick and are invisible to the eye, the TiO; oxide is highly chemically resistant and is attacked by very few substances, including hot, concentrated HCl, H2SO4, NaOH, and (most notably) HF. This thin surface oxide is also a highly effective barrier to hydrogen.
Q:Is VG-1 Stainless Steel any good in a folding knife?
I carry a french knife that has been made the same way for 400 years , the manufacturer is called Opinel,...they fold up and are carbon steel and for what I do are very period correct for anything from 1700's through 1800's...any way they are very good and come in like 5 different sizes.... check and see if they have a web site....
Q:why use brass sell casings? why not steel?
Brass has a natural lubricity that makes easier to extract after firing. It also can easily be resized for reloading. Steel offers neither of these properties. It cannot be reloaded so is good for only one single use. Brass has simply shown, by virtue of its metallic characteristics, to be the best choice for manufacturing cartridges.
Q:are surgical stainless steel and surgical steel the same thing?
There are several different grades and specifications that are referred to collectively as surgical steel, or Surgical stainless steel Non-stainless steel is not used for piercings and sutures and the like, because of the obvious reason that it tends to rust. The most common grade referred to as surgical is 316L, which is also used for food handling equipment. 316L is tough and very durable and has outstanding corrosion resistance. But it is moderately expensive. Very cheap body jewelry may be made out of cheaper grades of stainless steel like 304 or even the dirt-cheap 409. 304 is less corrosion resistant than 316L ; Almost nothing good can be said of type 409, except that's it cheap. 409 is not technically known as surgical, but some manufacturers may claim it is, to increase their asking price and also to cause buyer confusion. Surgical tools, which are not meant to be implanted, are usually made of the well known 440C, which is extremely strong and excellent at holding and edge, but it is not very corrosion resistant and it is brittle. 440C is not usually considered surgical. It's also used to make kitchen knives.
Q:What is the difference between steel and iron?
Steel is a refined, alloyed metal that is mostly iron. Iron, in a chemistry sense os simply Fe. In an industrial sense iron is pig iron commonly saturated with carbon, up to 4.5% and has other impurities like sulfur. Pig iron is brittle and should break rather easily, and bend very little. After a piece is broken look at the crystal structure, you should see rather small crystals. Most steel made for car body's, washing machines, file cabinets, low grade bolts and nuts etc. should flex and bend before breaking. Most steel made for things like cutting tools, axles, etc, is hardened and will chip and break rather than bend. Also you can try to heat the piece to a glowing orange temperature. It must be very hot. Cool it. If there is a lot of white flake scale on the piece it is impure and probably iron of some sort. In the end the only way exactly tell is have an analysis done and look at the chemistry.

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