High Coating Sph440 Steel Coil G450 Galvanized Steel Coil

Product Description

 

Product Description

Galvanized coil is a thin steel sheet that is immersed in a molten zinc bath to make a layer of zinc adhere to its surface. It is mainly produced by continuous galvanizing process.

It is made by hot dip method, but it is heated to about 500°C immediately after it comes out of the tank, so that it can form an alloy film of zinc and iron. This galvanized coil has good paint adhesion and weldability.
 

Standard	ASTM, AISI, DIN, GB, EN, JIS etc
Grade	SGCC, DC51D, DX51D, DX52D, SGCD, SGHC, DX54D, S350GD, S450GD, S550GD etc
Thickness	0.12mm-4.0mm or 0.8mm/1.0mm/1.2mm/1.5mm/2.0mm,etc
Width	600mm, 762mm, 914mm, 1000mm, 1200mm, 1219mm, 1250mm, 1500mm
Zinc Coating	Z40-Z275g/m2, or as clients required
Spangle	Big,regular,mini or zero spangle
Hardness	Soft or hardness, as clients required
Packing	Waterproof paper+plastic film+iron packing+bundling or as per customers request
Application	Ceiling channel,industrial refrigeration,cold storage,sandwich panel,PU panel,writing board,PCM steel plate
Delivery time	In 15-30 after receipt advance or LC
Payment	T/T or L/C at sight
Min order	25 Mt (one 20ft FCL)

 

GALVANIZED STEEL COIL STOCK LIST
DATE:2023.04.10
PRODUCT	COLOR	SIZE	WEIGHT	WAREHOUSE
GI	Zinc coating 40-100	0.15*1250*C	6.65	Tianjin
GI		0.15*1250*C	6.22	Tianjin
GI		0.2*1250*C	6.05	Tianjin
GI		0.2*1250*C	6.05	Tianjin
GI		0.25*1250*C	6.25	Tianjin
GI		0.25*1250*C	5.65	Tianjin
GI		0.28*1250*C	5.12	Tianjin
GI		0.28*1250*C	5.24	Tianjin
GI		0.28*1250*C	5.33	Tianjin
GI		0.3*1250*C	5.63	Tianjin
GI		0.3*1250*C	6.32	Tianjin
GI		0.3*1250*C	4.56	Tianjin
GI		0.45*1250*C	6.32	Tianjin
GI		0.45*1250*C	4.21	Tianjin
GI		0.45*1250*C	5.68	Tianjin
GI		0.45*1250*C	5.09	Tianjin
GI		0.5*1250*C	5.56	Tianjin
GI		0.5*1250*C	5.63	Tianjin
GI		0.5*1250*C	5.11	Tianjin
GI		0.5*1250*C	5.98	Tianjin
GI		0.5*1250*C	5.86	Tianjin
		0.5*1250*C

 

There are two main types of galvanizing processes: hot-dip galvanized and cold-dip galvanized.
Cold galvanized is also called electro galvanizied.The fields involved in electro-galvanizing are becoming more and more extensive. The application of fastener products has been widely used in machinery manufacturing, making galvanized chain link fences, electronics, precision instruments, chemicals, transportation, aerospace, etc., which are of great significance in the national economy. Hot-dip galvanizing is especially suitable for strong corrosive environments such as various strong acids and alkali fog.

Detailed Photos

Why is galvanized anti-rust?
Zinc has anti-rust and anti-corrosion effects, and galvanized steel can prevent rust. Galvanized steel includes galvanized sheets, galvanized pipes, etc., which are made of low-carbon steel plates and pipes. Low-carbon steel is an iron-carbon alloy, which is easy to rust. The surface is coated with a thin layer of zinc. Zinc is a non-ferrous metal. It has good anti-rust and anti-corrosion properties, which can isolate carbon steel from air, zinc does not contain iron, and galvanized carbon steel does not undergo oxidation reaction and will not rust.


What is galvanized steel coil used for?
Galvanized steel coil and sheet products are now being used for a wide range of electric appliances, automobiles and other industrial machinery as well as for civil engineering and architectural purposes.

Is galvanized steel spark resistant?
Yes, hot-dip galvanized coatings are anti-sparking and non-incendiary as are most zinc coatings.

Why can't you heat galvanized steel?
High temperatures above 480 F (250 C) will accelerate peeling and continued exposure can result in the zinc-iron alloy layers cracking and separating from the steel. Temperature applications of hot-dip galvanized steel above 480 F (250 C) are not recommended.

Does fire damage galvanized steel?
Temperatures in fires can easily exceed 1,000 F. There is a potential for coating damage but many have found fire damage to minimal on galvanized steel. Often a layer of carbon dust coats the galvanized surface and under this layer the coating is intact.

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What is the difference between galvanized and stainless steel?
The concepts of galvanizing and stainless steel are different. Galvanizing is a layer of metal zinc coated on the surface of the steel plate to prevent corrosion of the steel plate surface and prolong the service life; stainless steel refers to the resistance to weak corrosive media such as air, steam, water, and acids, alkalis, Steel corroded by chemically corrosive media such as salt, also known as stainless acid-resistant steel.

Galvanizing refers to a surface treatment technology that coats a layer of zinc on the surface of metals, alloys or other materials for aesthetics and anti-rust effects. The main method used is hot-dip galvanizing.

Advantages and disadvantages of galvanized steel compared with stainless steel: zinc steel has corrosion resistance, enhanced strength, steel deformation is not easy to break and environmental protection, and is not easy to rust. It is suitable for some public environmental hardware facilities used in harsh environments (wet, acid-base and other indoor and outdoor environments), and if the surface is sprayed and colored, the adhesion strength will be higher, but the corrosion resistance will disappear after the surface zinc layer is damaged. Stainless steel will not corrode, pit, rust or wear, and can achieve the highest strength of the two, but it is also expensive and difficult to weld. The biggest advantage of zinc steel is that it is cheap, and the biggest disadvantage is that it is not corrosion resistant.
 

Galvanized Chemical Composition

Metal type	Grade	CHEMICAL COMPOSITION %
		C	Si	Mn	P
cold rolled steel sheet	DC51D+Z (St01Z, St02Z, St03Z) , DC51D+ZF	≤0.10	-	≤0.50	≤0.035
	DC52D+Z (St04Z), DC52D+ZF	≤0.08	-	≤0.45	≤0.030
	DC53D+Z (St05Z), DC53D+ZF	≤0.08	-	≤0.40	≤0.030
	DC54D+Z (St06Z), DC54D+ZF	≤0.01	≤0.10	≤0.30	≤0.025
	DC56D+Z (St07Z), DC56D+ZF	≤0.01	≤0.10	≤0.30	≤0.025
hot rolled steel sheet	DD51D+Z (St01ZR, St02ZR)	≤0.10	-	≤0.50	≤0.035
	DD54D+Z (St06ZR)	≤0.01	≤0.10	≤0.30	≤0.025

Galvanized Coil is very versatile,such as fire building engineering,power construction project,machine made, automobile industry and etc.

Quality Testing

 

Packaging & Shipping

1.Packing :3 layers of packaging, kraft paper inside, water plastic film in the middle, the outermost GI steel plate tied with steel belt or as required.
2.Shipping port: Tianjin/Shanghai/Qingdao
3.Shipment:
a. Length: ≤6m, loaded in 20GP Container.
b. Length: ≤12m, loaded in 40GP Container.
Remark: Size of 20GP Container (inside :5898*2352*2393mm)
Size of 40GP Container (inside:12032*2352*2393mm)
Size of 40HQ Container (inside:12032*2352*2698mm)
4.Delivery time: Within 7-15 days, depending on the situation

About us

Jinan Zunkai Group founded in 2002, with five branch companies and is well-funded. Our annual sales nearly one billion, about 300,000 tons steel. Our company is located in Jinan City, Shandong Province. We entered into a strategic partnership with Bao Steel, Laiwu Steel, Rizhao Steel, Handan Steel, Anyang Steel, Maanshan Steel and other domestic large steel companies. Zunkai is the largest steel agent in Shandong Province, we also have ourselves steel process factory with 100000 Square meter for steel laser cutting,surface treatment and other further processing , and our stock always more than 20,000tons.Zunkai Group mainly engaged in : PPGI ,galvanized steel , steel plate , round bar, steel pipe ,Stainless steel product ,angle bar, steel pile ,H beam ,l beam, angle, Channel flat steel and etc . Our good quality and reliable service will be your best trusted partner.Sincerely wish to building long and regular business with you forever!!! 

 

Certifications

 

FAQ

1. Who are we?
We are based in Shandong, China, start from 2016,sell to South America(20.00%),Africa(20.00%),Southeast Asia(15.00%),Central America(10.00%),North America(5.00%),Oceania(5.00%),Mid East(5.00%),Eastern Asia(5.00%),Western Europe(5.00%),South Asia(5.00%),Domestic Market(5.00%). There are total about 11-50 people in our office.

2. What can you buy from us?
Galvanized Steel,Corrugated Roofing Sheet,Galvanized Coil,PPGI,PPGL,Steel Plate,Steel Stainless and etc.

3. What services can we provide?
Accepted Delivery Terms: FOB, CFR, CIF, EXW, FCA;
Accepted Payment Currency:USD, EUR, JPY, HKD, CHF;
Accepted Payment Type: T/T, L/C, MoneyGram, Credit Card, PayPal, Western Union, Cash.

4.Are you a factory or a trading company?
We have both factory and trading company,own branch factory and warehouse in Shandong Province to provide you nice goods with best price and good quality.