Premium Quality Corrugated Galvanized Steel Sheet

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
50 m.t.
Supply Capability:
2000 m.t./month

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Item specifice:

Standard: AISI,JIS,GB,ASTM Technique: Hot Rolled,Saw Shape: Square,Rectangular
Surface Treatment: Galvanized,Coated,Color Coated Steel Grade: Q195,Q215,Q235,Q215B,Q235B,200 Series Certification: ISO,SGS,BV,IBR
Thickness: 0.2 Length: 1500 Net Weight: 0.2MT

Product Description:

 

Product Brief Introduction

 

 Premium Quality Corrugated Galvanized Steel Sheet

Galvanized Corrugated Steel Roofing Sheet is formed by cold roll machine, using galvanized steel sheet or aluminum steel as the base material .Galvanized corrugated steel roofing sheet is featured with easy installation ,high  strength ,more economic .(and  low cost )

 

Product Features

 .Surface have been treated as galvanized and color coated.so it can anti-rain,anti- fire,anti-quake,So it has a long term life as 20-30 year and color just not fade.

. Light weight: easy to transport the material,short the time to finish the building,reduce  worker's hard work,save much time and energy for human beings.

 .Smooth surface treatment,the dust will be easy taken off by the rain.

. Environmental material,can be used many times,will do no hard to the our environment.

 

Product Specification 

 Premium Corrugated GI Galvanized Steel Sheet

 

Packing Information (For 27.5 Tons heavy 20’Fcl)

 . water proof paper packing inside

. plastic film Packing in middle

. steel sheet Packing outside

.several steel strip packing to fix the packing

 

Production Line & Package 

 

 

FAQ

 

1.    how many wave for per pcs

—— some wave is 8 ,same wave is 9 ,save wave is 11 ,it is up to your request

2.    What is the MOQ for this products ?

—— Normally the MOQ is 25mt per size and per color .

 

 Premium Quality Corrugated  Galvanized Steel Sheet

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Q:What are the categories of strip steel? How do you distinguish it?
Steel is iron, carbon as the main component of the alloy, its carbon content is generally less than 2.11%. Steel is one of the most important metal materials in economic construction.
Q:What is the difference between galvanized steel cold base galvanized steel strip and hot galvanized steel strip?
The soaking process is mainly used in electroplating process, some appearance of repairing damaged more, a large number of plates or on the hot dip galvanizing process implementation. Cold is the use of zinc plating on the surface of the steel plate with filler replacement attached to a layer of zinc to the surface of the steel plate, the plating thickness is very small, generally between 10-50g/ square meters, anti-corrosion performance is poor, and its effect and general coating, sometimes as coated with a layer of anti rust oil in key parts this method should not be used so as not to affect the structure and properties of corrosion. The above is hot dip galvanized plate is heated to 500 DEG C into liquid zinc (zinc liquid temperature about 470 degrees Celsius), the formation of Zn Fe alloy coating and zinc layer, this method is the most commonly used, and the thickness of zinc can be controlled in more than 20 mu, ranging from 60g-275g/ square meters, even more thick, far better than cold plating process.
Q:What is the difference between strip and coil?
Coil generally refers to the strip width not less than 600mm, can generally be divided into Kaiping steel plate or longitudinal strip, standard and plate together, such as: carbon and low alloy structural steel plates and strips. Strip width is generally less than 600mm.
Q:Hot rolled strip, the theory of the thinnest, how thin rolling, why not rolling too thin, is the material or the reasons for plate shape?
Tangshan Iron and steel production line design capacity of 0.8mm, the thin can be rolled to 1.8 or limited production, steel level, the purity of molten steel are related, and also there is a certain relationship between the plate width.
Q:Can the tension leveller eliminate the wave shape of strip steel completely?
Deformation of strip in tension and bending. There are two sides of the strip wave, the edge of the long fiber and short fiber into the middle; stretching and straightening machine Zhang Ligun, high tension length of the fiber are elastic deformation, the deformation is in the same length; bending roll, tensile and bending interaction length of the fiber plastic the deformation happened, Wuxi Tiangong metallurgical production straightening machine total length is still the same, which is different from the original long fiber produced by plastic deformation is small, the original short fiber produced by large plastic deformation; tension and bending stress to remove all strip elastic deformation recovery, leaving only the plastic deformation, then the original short fiber than long fibers obtained permanent large plastic deformation, long fiber length and narrow the gap, but still a long long fiber, short fiber is still relatively short.
Q:The degreasing time is too long, will the strip surface be oxidized?
Sheet metal pretreatment, degreasing total alkalinity is recommended in 15-20, alkali spent large, must be short time processing, for a long time will make the metal crystal nucleus passivation, influence phosphating film. Sheet metal general oil should not be cleaned, especially stamping parts, etc., it is recommended to use degreasing temperature, the temperature can be 65-75 degrees.
Q:What's the difference between hot rolled strip and cold rolled strip? What's the difference between hot rolled coil and cold rolled coil?
The term "steel coil" is strip steel whose width is greater than 600mm and its width is less than 600mm. It is called "narrow band", so hot rolled coil is called hot rolled strip steel. As for the difference between hot rolled coil and cold rolled sheet, it is aimed at the rolling state of the steel plate. The hot rolled coil is made by rolling the hot rolled slab.
Q:Causes of zinc removal in hot rolled strip
The Al content in the alloy layer is little, and the Fe2Al5 alloy layer which is decisive to the adhesion of the zinc layer is not generated, or the alloy layer is damaged by the excessive growth of the iron zinc alloy layer.
Q:What about the strip scraping in the annealing furnace?
Thus forming an air knife scratch. This kind of defect causes the product to be wasted because the coating is scratched. Proper control of strip tension in productionForce and adjust the nozzle distance, can avoid this kind of defect happen.
Q:What is the difference between cold plate and strip steel?
The strip is supplied in general, and has the advantages of high dimensional accuracy, good surface quality, easy processing and material saving. Same as steel plate, strip steel is divided into two kinds of ordinary strip steel and high quality strip steel according to the material used. Two kinds of hot-rolled strip steel and cold rolled strip steel are processed according to processing method.

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