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Hot dip galvanizing is the process of applying a zinc coating to Cold rolled steel strip by immersing the material in a bath consisting primarily of molten zinc. The simplicity of the galvanizing process is a distinct advantage over other methods of providing corrosion protection.

Galvanizing forms a metallurgical bond between the zinc and the underlying steel , creating a barrier that is part of the metal itself. In India Galvanized steel is generally used in Roofing, Refrigerator door & body panels and manufacture of various parts Home appliances.

 

Product Name	Galvanized Gi Steel Coil
Standard	JIS G3302 1998, ASTM A653M/A924M 2004,A792/A792M, JIS G 3321, EN 10346 or at your request
Grade	SGHC, SGCC, DX51D, Q195,DX51D+AZ ASTM a792 or at your request
Thickness	From 0.12mm to 5.0mm
Width	From 100mm to 1250mm
Zinc coating weight	17-600gsm, double side, equal thickness
Spangle	big spangle, normal spangle, small spangle, zero spangle
Hardness	Normal (HRB70±5), Full hard (HRB90±5)
Surface treatment	Chemical passivating, oiled,unoiled, passivating + oils,Anti-Fingerprint ,Chromated,Skin passed, high weather resistance,etc
Edge	slit edge, mill edge (for splitted coil)
Coil ID	508mm/610mm
Coil weight	3-10 tons, at your request
Delivery time	within 7 days after receipt of deposit or L/C,T/T
Business type	Supplier and manufacturer

 

 

GI (Galvanised Steel) & PPGL (Pre Painted Galvalume Steel) & Galvanized lron Coil are some of the most popular materials in home and abroad,available in a variety of specifications.

 

 

(1)Normal spangle coating

During the normal solidification process of the zinc layer, the zinc grains grow freely to form a coating with obvious zinc flower morphology.

 

(2)minimized spangle coating

During the solidification process of the zinc layer, the zinc grains are artificially restricted to form the tiniest possible zinc flower coating.

 

(3)Spangle-free coating

By adjusting the chemical composition of the plating solution, a coating with a uniform surface without visible spangles is obtained.

 

(4) zinc-iron alloy coating

The steel strip after passing through the galvanizing bath is heat treated so that the entire coating forms an alloy layer of zinc and iron. This coating has a dark gray appearance with no metallic luster and is easily powdered during the violent forming process. It is suitable for use in addition to general A coating that can be painted directly without further processing other than cleaning.

 

(5) Differential coating differential coating

For both sides of the galvanized steel sheet, coatings with different zinc layer weights are required.

 

(6)Skin pass

Finishing is a cold rolling process with slight deformation on galvanized steel sheets for one or more of the following purposes.

 

 

Step 1:

Pre-treatment: When the cold rolled coil arrives at the workshop,firstly going through the uncoiler machine, through the degreasing section and the reduction furnace, the steel coil surface is cleaned and the components are adjusted to the proper ratio for the next galvanizing procedure.

Step 2:

Core section: The uncoiled steel sheet goes into the molten zinc pot. After the zinc pot, dense zinc layer adhere to the surface of the steel sheet. Then it is cooled and shaped by the cooling tower.

Step 3:

Post-processing: The steel sheet comes into the post-processing stage. Going through procedures including finishing, straightening and passivation, finally recoiling. At this point, the well known silver shining galvanized steel coil is done.

 

 

 

 

 

 

 

GNEE has a number of factories with about 15 years of experience in this field, focusing on coils, rounds, plates, pipes and warehousing processing. It has a large number of high-quality management, technical and sales professionals, and has introduced a series of advanced processing equipment. Our products are produced in strict accordance with national standards GB, ASTM, EN and JIS.

 

 

 

1. Which payment method can I choose?

GNEE Steel accepts all types of secured payment methods. We can provide bank transactions, Alibaba transaction guarantee, Paypal, etc. Please feel free to contact us to learn about your preferred payment method.

 

2. Do you provide sample service?

GNEE Steel provides free samples to customers. We usually also bear the sample shipping cost. Please feel free to order samples from us.

 

3. Can it be customized?

GNEE Steel has professional equipment and well-trained workers, with the ability to manufacture highly customized products. Please feel free to discuss your custom requirements with us and we will be sure to meet your needs.

 

4. What products and materials do you supply?

GNEE Steel mainly supplies all varieties and grades of steel and gi steel products. Customized products such as coils, strips, plates, and pipes. Surface treatments such as tin plating, titanium plating, and zinc plating are also available. In addition to steel products, GNEE Steel also has high production capacity and a large inventory of various types of galvanized steel coil products. Please feel free to consult us for any of the above related products, we will definitely meet your requirements.

 

http://www.steelgalvanized.com/