Hot Dipped Galvanized prepainted steel coils

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25 m.t.
Supply Capability:
300000 m.t./month

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Product Description:



1,Base Metal:COLD ROLLED(CR)

2,Zinc Coating: z40-z275



5,Length: according to your requirement (unit of measurement: Ton)

6,Minimum order:25Tons

7,Packaging Details: Fully seaworthy export packing

8,Price Terms:FOB,CIF,CF 

9, Terms of payment:T/T 30% in Advance,70%T/T after the copy of B/L or L/C at sight.

10, Coil weight:3-10 ton or client's suggestion

11, Width tolerance:±10mm

12, Spangle:zero spangle , min spangle , regular spangle, big spangle

 13.Hot dipped galvanized steel coil & opened sheets


Hot Dipped Galvanized Steel Coil


Range and Production Capacity


  Unit type

1# hot dip galvanizing unit

2# hot dip galvanizing unit

3# hot dip galvanizing unit

4# hot dip 

galvanizing unit

Highest process speed m/min



GI 160


GA 60











Mass of coating g/m²





Steel coil inner diameter (mm)





Production capacity 





Surface structure

Smooth, zero spangle


Surface treatment

Oiling, passivation or non-chrome passivation, passivation plus oiling, non-chrome passivation plus oiling, fingerprint resistance or non-chrome fingerprint resistance.


Number and Standard



No.,standard,   variety


Executive standard

Application and characteristics

Stamping steel


GB/T 2518

Ordinary use, mechanical seaming, deep punching, and ultra-deep punching. Coating and welding performances of alloying hot galvanizing are better.




Structural steel


GB/T 2518

Used for structure. Good corrosion resistance and processability.








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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:desnity of steel?
First you have to convert the coefficient of linear expansion to a coefficient of volumetric expansion. Multiply the coefficient of linear expansion by 3: Coefficient of expansion of steel,β:12E-6/°K x 3 = 36E-6/°K Difference in temperature: 480°K ΔV = VoβΔT ΔV = Vo x (0.000036) x 480 ΔV = 1m³ x 0.017 ΔV = 0.017m³ Originally, the steel was at 7800 kg/m³ Now, the steel was at 7800 kg/ 1.017m³, or 7670 kg/m³ Change in density = 7670 - 7800 = -130kg/m³
Q:Is this guitar steel string or nylon?
if you can get a good picture of the bridge i can tell for sure i thing steel
Q:Does stainless steel cookware really cause cancer?
Hi, I think that Stainless Steel is one of the safest ways to cook food. Glassware is also safe, but you must be careful not to drop the stuff, it can break and leave small pieces on the floor. Yes non-stick cookware can harm small fast breathing animals like birds in your house if the cookware overheats, but by keeping water or moisture in the bottom of the pan, and not using supper high heat, you can avoid overheating a non-stick surface. This also includes not scraping the surface with the utensils. Aluminum cookware, especially cast aluminum is considered by many as more than average toxic to many. Test for alltimers is that they contain aluminum in their bodies, and many owned aluminum cookware too. To kill cancer, look to Dr. Otto Warburg, who did win a Noble Prize for discovering how to kill the cancer cells.
Q:Thermal expansion of steel?
? got me is that the whole problem or is there more?
Q:working load of steel anchor ?
Assuming that the chain can take the breaking load of the plate, the plate will fail at the area between the hole and the end, in double shear. The shear strength of the material should therefore be known for us to be able to calculate the breaking force. Approximately, the shear strength of steel is about 60% of the tensile strength. For ordinary mild steel the tensile strength is about 60,000 psi, not 38,000 psi. 38,000 psi is just about the yield point of mild steel. Using 60,000 psi tensile strength, the approximate shear strength of steel therefore is 36.000 psi. The net area between the hole and the end of the plate is: A = 3/16(3/4 - 1/4) = 0.09375 in^2 The force necessary to rip through the area which is also the tension on the chain is: T = 2 x 0.09375 x 36,000 = 6750 lbs
Q:Danielle steel..................................................................?
Wait until you are eighty, the dementia will make the process less painful Otherwise, you know best how mature you are and Danielle Steel is sugary romance, not really sex.
Q:What is the steel industry?
The steel industry is an industry that produces steel. It is one of the largest industries in the world, with China as the leading steel producer
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.
Q:Steel Estimating Question?
That is a little tough to answer given the details. I will try to answer it as best I can. You can send me a message if you need further help and I can get some more details from you. If it is a 6 million dollar project, that is about $428/sf - (6 million divided by 14,000 sf). $428 is a little bit higher end then say, just a Walmart which is a block and steel box. Assuming you have a concrete slab on the first floor, metal deck on the second floor, with steel beams and open web joists framing, steel columns and steel roof framing with a metal deck roof.... you could be approx 10-15% of the total 6 million. Now, this would include the structural steel, not light gauge steel framing for walls. It sounds like you are looking for structural steel, not metal stud framing. Hopefully this helps, I can check back to this thread later to see if you've had to add any more details.

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