Hot Dipped Galvanized Steel Coils for Roofing Sheet SGCC (DX51D+Z)

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Loading Port:
Tianjin
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TT OR LC
Min Order Qty:
50 m.t.
Supply Capability:
1000 m.t./month

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1.Description of Hot Dipped Galvanized Steel Coils for Roofing Sheet -standard:

The hot dip galvanizing process is developed from old hot plating methods, and it has a history of over 140 years since its application to the industry of France in 1836. However, the hot dip galvanizing industry has been greatly developed in recent three decades with the quick development of cold-strip steel.


2.Main features of Hot Dipped Galvanized Steel Coils for Roofing Sheet -standard:

With excellent cold-rolling steel strips as a base material, it has the advantages of

.Passivation and oil coating treatment.

.Avoids deterioration after a short-term storage in a warehouse.

.After the surface is cleaned, the product is a good base material for manufacturing anti-corrosion coating plates.


3.Hot Dipped Galvanized Steel Coils for Roofing Sheet -standard Images:

Hot Dipped Galvanized Steel Coils for Roofing Sheet SGCC (DX51D+Z)

Hot Dipped Galvanized Steel Coils for Roofing Sheet SGCC (DX51D+Z)

Hot Dipped Galvanized Steel Coils for Roofing Sheet SGCC (DX51D+Z)

Hot Dipped Galvanized Steel Coils for Roofing Sheet SGCC (DX51D+Z)


4.Hot Dipped Galvanized Steel Coils for Roofing Sheet -standard Specification:

Hot Dipped Galvanized Steel Coils for Roofing Sheet SGCC (DX51D+Z)


Hot Dipped Galvanized Steel Coils for Roofing Sheet SGCC (DX51D+Z)  Hot Dipped Galvanized Steel Coils for Roofing Sheet SGCC (DX51D+Z)


5.FAQ

We have organized several common questions for our clients,may help you sincerely: 

①How about your company?

A world class manufacturer & supplier of castings forging in carbon steel and alloy steel,is 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 requirement.

②How to guarantee the quality of the products?

We have established the international advanced quality management system,every link from raw material to final product we have strict quality test;We 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:Measures to prevent cold rolling of packaged cold rolled steel coils? Who can give some professional opinions oh?
In order to prevent rusting in the process of storage or transportation of steel roll, steel mills generally take the following packing: inner gas antirust paper wrapped with tape wrapped in plastic film sealing, intermediate, involute cardboard seal lining, cardboard corner, with iron and steel outer package corner protector, strapping fixed. If the inner package seal, so the steel coil is sank into the water, will not rust out.
Q:Steel coil from vertical to horizontal, what sling needs?
Consider using the function with hydraulic prop hanging clamp from the coil center will hold tight after hanging up, then put in a L type hydraulic turnover device platform or unilateral double column loading platform, then L platform can realize 90 degrees down, vertical horizontal variable.
Q:What is the maximum width of galvanized steel strip, please? The galvanized coat is 275, and how long is one coil?
But this kind of steel coil is not well processed in the market. At the beginning of Wuhan, several processing plants are good at processing, and other processing plants usually process 1850 at most.
Q:What brand steel tapes are of good quality?
Personal feeling is also good for the Great Wall Seiko tape, upstairs several estimates are the production of steel tape manufacturers, of course, that their goods well. Our unit now buy all the Great Wall Seiko goods, said the tape is good, not because it is so durable
Q:How to solve steel plate storage
According to the principle of "first in first out" to carry out the turnover, organize the logistics, reduce the large amount of moving plate, reasonable arrangement, easy to steel coil into the use of state.
Q:The difference between aluminized color steel roll and ordinary color steel roll
Substrate selection: AZ150 (aluminum zinc content 150g/m2); G345A high strength galvanized steel sheet (55% aluminum, 43% zinc and 1.6% silicon) corrosion resistance data: 5%NaCL 35 DEG C, 1000Hrs, Field good, Scribe, No, Blister, 2mm belowQ.U.V: 2000hrs, MAX.2 color, light to keep the rate above 90%, the above data show that aluminum zinc coated board (AZ150, G345A, PVDF) is very suitable for the extreme environment of buildings or other facilities, highly corrosion resistance and weather resistance, and the major steel plate can ensure the service life of 20 years. In addition, high strength steel has been widely used abroad, and it has good economic performance, and it is also the domestic development trend.
Q:Cold rolled steel coil steel, what is the difference?
Cold: 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. Rolled hard rolls can be used as raw material for hot galvanizing plants. Because the hot galvanizing units are equipped with annealing lines, the steel coils are rolled continuously at room temperature. Its strength is very high, but toughness, weldability is slightly worse, bright surface, not easy to corrosion, in order to prevent rust, the factory surface is coated with a protective layer of oil (hot rolling did not). Because of the complexity of the process, the price is higher.
Q:Why can hot rolled coils be placed outside?
Because the stress of participation should be eliminated
Q:The strip tower height
Definition and appearance: the ends of the steel coils are uneven, one circle higher than the circle, showing a different degree of pagoda shape or bread shape.
Q:What is the difference between cold rolled strip and cold rolled steel coil?
Cold rolled steel strip: the width is below 900mm! Cold rolled steel coil: the width is above 1000mm! Materials and purposes are not very different, basically the same!

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