HDGI/GI Hot-Dipped Galvanized Steel Sheet in Coil/GI Coil/G550/G90

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
10 m.t.
Supply Capability:
500 m.t./month

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Product Description:

We can supply prime quality,competitive price,timely delivery and various payment terms!

The main technology of Galvanized steel sheet is proceeding by the chemistry degrease and electroanalysis with the cold rolled steel coil and sheet ,clean the oils on the surface of steel, sufficiently heated to the proper temperature for zinc coating, pass by level up, strain rectify , and then passivation or annoit etc.. Hot dip zinc is in order to improve anti-erode and prolong the usage period of material, at the same time it can beautify the surface and add arty.

Our hot dip galvanized steel sheet is widely used in such field as light industry, electrical home appliances, motorcar and construction.

 

 

Base material:

 

cold rolled steel coil   hot roll steel coil

Steel type:

low carbon mild steel, extra lower carbon mild steel, low alloy steel, high strength steel

Zinc coating weight:

60-275g/m2, Al-Zn: 60-180g/m2

Thickness:

0.15-1.5mm

Width:

20-1250mm

Internal Diameter:

508mm, 610mm

Quality standard:

EN10142, EN10326, EN10169,JIS3302, ASTMA755M, GB/T12754

Steel Grade

DX51D, DX52D, DX53D, S220GD, S250GD, SGCC

Surface Finish:

Normal spangle, Minimized spangle ,Skin-passed spangle, No spangle

Surface Treatment:

Chromate-passivated (C),Oiled (O),Chromate-passivated + Oiled (C+O),Untreated (U),Anti-finger treatment,Phosphate treated(P)

Weight of coil:

1-8 MT

Package method

Vertical, Horizontal


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Q:what do you use (wet stone or steel) to sharpen a carbon knife blade?
There are many ways to sharpen knives. I guess your question is whether to use the steel that comes with knives, or a stone. Steels are only to straighten the edge, which is stropping. They won't sharpen a truly dull knife. For that you need a real sharpening system, of which a whet stone is one. The edge of a knife will get wavy with use - that's what the steel is for, to true it back up.
Q:How is steel coloured?
Steel can be plated(Chrome),Blackened(Black Oxide),Powder coated(color of your choose).All of this is done to prevent rust.All of these aforementioned processes can be worn off through being used.I suggest polished Stainless steel.
Q:I want to make a stainless steel chess set and need help...?
I'll buy one. You'll have to machine it from blocks... You could invest in a milling machine - they are like drill presses and lathes all together and more... If you hook it up to your computer, you can do a CNC milling, where you can get really creative and finely detailed. Stainless is heavy and hard, so it'll go through your bits, and you should use the super duty bits as well. I have always wanted an SS chess set, I made a board out of leather. It's really super awesome, just need your pieces now. Or make mine from Plutonium, or Tungsten Carbide.
Q:Stretching Ears: Acrylic vs Steel?
Steel is much better because acrylic can't be sterilized. If you have the option, titanium is much better because steel can cause nickle allergies, which can get pretty irritating.
Q:What is the history of steel?
There's wide history of steel, you can read different tutorials online to know more about it. Check wiki for detailed information.
Q:Steel Buildings?
Yes you can have a steel structure building, as if it is more economical than RCC, I think it is , and it is much faster in completion than RCC, For such area steel structure is less in time than the RCC by 30% to 40%, my experience could estimate 6months to 8 months duration for steel structure
Q:what is the chemical composition of the steel material to be used for steel tube ferules?
I don't know your application, but here is some advice. Case hard provides a hard shell around soft steel, depending on the bake, the case is usually .002-.008 thick. (thousands of an inch) Heat treated steel or tool steel is hard all the way thru. Case hardening, provides toughness with flexibility, however, once it's compromised, the part is scrap. Hardend tool steel is extreemly hard throughout and the harder it is, the more brittle it becomes. The application of the part will help you to determine the material needed. For instance; Plastic injection molds are very hard so the hot plastic wont erode them over years of use. Punch Press dies aren't as hard but are tougher to withstand the shock. Machine bolts are case hardened so they can last, but soft enough to allow some stretching during tightening. Either way, the time in mfg will be about the same. Most tool steels today cut like cheese, but take time to be heat treated. Tool steel will cost a bit more than low carbon steel. Low carbon steel is as machinable, and cheaper, but, again, the baking period is as long or longer than tool steel. There are a lot of materials on the market today that maintain the durability of heatreated steel without having to go thru that process. 4140, ( or chrome/moly) comes to mind. There are also some 400 series stainless that work as well, and others. You need to determine strength, flexibility, ease of mfg, cost and repairability when considering which steel to use.
Q:Can fire resistant building materials burn hot enough to melt steel columns?
they shouldn't, provided that they are properly fireproofed. in the case of the wtc the explosion of the plane instantaneously removed the spray on fireproofing in the members. the unprotected members then melted. had the fireproofing remained on the members the office equipment etc most likely would have burnt itself out before the members became comprimised.
Q:is steel is natural content of earth.?
Steel is not elemental, if that's what you mean. It's a metal alloy, a combination of mostly iron and some carbon. Iron and carbon both occur naturally on the Earth, but you have to melt them together to make steel.
Q:Several reading methods of steel tape measure
Precise steel tape factory and after a period of time must go through the verification and indicate the verification of temperature, tension and feet. Feet marked on the length of its nominal length, and the difference between the actual length is called length correction delta l ruler by different tension will make feet long. To avoid this change requires the use of steel tape according to the scale mark force of steel tape. At different temperature the foot will change with the temperature so it is necessary to use t as variable function to represent the feet long, this is the ruler length equation, its general form:

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