Zinc Coating Steel Building Roof Walls Steel Coil ASTM 615-009

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1.Structure of Hot-Dip Galvanized Steel Sheet Description

Hot-dip galvanized steel coils are available with a pure zinc coating through the hot-dip galvanizing process. It offers the economy, strength and formability of steel combined with the corrosion resistance of zinc. The hot-dip process is the process by which steel gets coated in layers of zinc to protect against rust. It is especially useful for countless outdoor and industrial applications. Production of cold formed corrugated sheets and profiles for roofing, cladding, decking, tiles, sandwich walls, rainwater protective systems, air conditioning duct as well as electrical appliances and engineering.tungsten, carbon and so on. Basically, steel is an iron-carbon alloy that does not undergo eutectic reaction. In contrast,cast iron does undergo eutectic reaction, juveniles and non-breeding males have predominantly grey-brown plumage, but breeding males adopt brilliant colours, with an iridescent silvery-blue crown and upper back, red-brown shoulders, a black throat, grey-brown wings and pale underparts. Though the red-winged fairywren is locally common, there is evidence of a decline in numbers. Primarily insectivorous, it forages and lives in the shelter of scrubby vegetation in China.

2.Main Features of the Hot-Dip Galvanized Steel Sheet

• Excellent process capability

• Smooth and flat surface

• Workability, durability 

• Excellent anticorrosive property

• High strength

• Good formability

• Good visual effect

3.Hot-Dip Galvanized Steel Sheet Images

Zinc Coating Steel Building Roof Walls  Steel Coil ASTM 615-009

4.Hot-Dip Galvanized Steel Sheet Specification

Standard: ASTM, JIS,EN

Grade: CS, DX51D+Z,SGCC, SS 230~550,S220GD+Z~S550GD+Z, SGC340~SGC570

Thickness: 0.1mm~5mm

Width: max 2000mm

Coil weight:3-12 MT

Coil ID:508/610mm

Surface structure: zero spangle, regular spangle or minimum spangle

Surface treatment: Chromate treatment, Oiled/dry, skinpassed/non-skinpassed

Packing: Standard seaworthy export package

Technology test results:

Processability

Yield strength

Tensile strength

Elongation %

180°cold-bending

Common PV

-

270-500

-

d=0,intact,no zinc removal

Mechanical interlocking JY

-

270-500

-

d=0,intact,no zinc removal

Structure JG

>=240

>=370

>=18

d=0,intact,no zinc removal

Deep drawn SC

-

270-380

>=30

d=0,intact,no zinc removal

EDDQ SC

-

270-380

>=30

d=0,intact,no zinc removal

 

5.FAQ of Hot-Dip Galvanized Steel Sheet 

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

1.How about your company

A world class manufacturer & supplier of castings forging in carbon steel and alloy steelis one of the large-scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirements.

2.How to guarantee the quality of the products

We have established the international advanced quality management systemevery 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.

3. 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 15-30 days, but the shipment will depend on the vessel situation.

 

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Q:Why does the strip bend when it is rolled?
In the rolling process of strip tension is too large or too small will bring many adverse effects on the operation, including in the choice of a plan, must be properly chosen at each strip tension, if the improper selection of strip tension, will affect the quality of strip steel and the actual operation, when the strip coiler tension before and after the selection is too large that will cause the broken belt or rolled steel coil is heart-shaped, tension is too small will cause damage to roll off with Le roll or strip.
Q:What are the advantages of cold rolling and cold rolling strip steel?
What to do with cold rolling is better than that of hot rolling, which is the main one because cold rolling is processed by hot rollingCold: hot rolled steel coil as raw material by pickling descaling after cold rolling, the finished rolling hard volumes, due to continuous deformation caused by cold hardening the volume rolling hard strength, hardness, toughness index rise decline, so the stamping performance will deteriorate, only for a simple deformation of parts.Cold rolled steel strip and sheet thickness is generally 0.1 ~ 3mm, width 100 ~ 2000mm in hot strip steel or timber as raw material, under normal temperature after cold rolling, cold rolled steel strip and sheet has the advantages of smooth surface, smooth, high precision and good mechanical properties.
Q:What's the reason for the strip after pickling?
Will it use a strong acid wash, and the temperature is too high to destroy the ductility of steel?.
Q:Why is strip heat cheap?
The strip is a narrow strip of steel that can be used in a refinery, or not. This is the answer you need
Q:What's the difference between cold rolled strip and cold rolled strip?
The term "steel coil" is strip steel, whose width is less than 600mm. It is called "narrow band", so cold rolled coil is called cold-rolled strip
Q:Reasons for black side of hot strip galvanizing
Solution: contains too much impurity in the bath can use saline and Potassium Permanganate rushed ang impurity, or adding zinc chloride solution to current economic treatment; the strict monitoring of the production process to prevent the emergence of this phenomenon; low content of zinc chloride can be solved by adding zinc chloride.
Q:What is the difference between steel strip and coil?
What do you think of rolling mills, not money ah, rolling strip is a small rolling opportunities, can be cheaper than rolling coil, and this cost should be spread to each product above, there are other what, like the cost of sharing ah.
Q:Can the tension leveller eliminate the wave shape of strip steel completely?
Reflecting the shape of the board, the wave height is reduced or the wavelength is lengthened. That is, the tension straightener can only reduce the wave and improve the shape of the plate, but can not fundamentally eliminate the wave, and get an ideal smooth strip steel. There is an old saying called "correction must be positive". That is to completely eliminate the wave must be of short fiber than long fiber tension and bending is greater, elastic and plastic deformation of the original long fiber length is greater than a certain amount, resulting in the removal of external force, elastic recovery, length of fiber length, so as to obtain the shape completely flat the. However, in the current conditions of the straightening machine equipment, do not have such a function.
Q:What are the sectors in which galvanized steel strips can be used?
Galvanized steel strip is no exception. The production process of wire and cable is also improving, the quality of continuous progress, and give full play to the unique characteristics of galvanized steel strip. Considering that the cable is often subjected to radial external force during use, a galvanized steel pin mounting layer is added outside the cable shielding layer (between the shielding layer and the steel pin mounting layer). Galvanized steel is mainly used as the radial mechanical cable protection layer, at the same time, it also plays additional total shielding effect, especially steel tape and copper wire, copper tape shielding, adopts two different shielding materials, play a complementary role in electromagnetic shielding, shielding effect will be better. From this we can see that the quality of galvanized steel strip industry is continuously improving, and the application is also developing in a broad and meticulous way.
Q:How to distinguish cold strip steel and cold rolled silicon steel sheet by simple and practical methods
If it is 0.5, you can see the coating, the silicon steel sheet is coated, cold rolling is not.

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