galvanized steel coil supplier

Metal in China®(XINTUOYUAN) chooses high-quality hot-rolled carbon steel or cold-rolled carbon steel as the base material, and manufactures galvanized steel coils by hot-dipping or electroplating. The end result of this process is a layer of zinc on each side of the steel sheet or coil that adheres tightly to the steel through the formation of an iron-zinc alloy bond.We also offer processing services of cutting large coils into smaller coils or strips and opening flat coils into steel plates.
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hot-rolled-galvanized-steel-coil-supplier

Hot Rolled Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Hot Rolled
Surface
Hot Dipped
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cold-rolled-galvanized-steel-coil-supplier

Cold Rolled Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
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regular-spangle-galvanized-steel-coil-factory

Regular Spangle Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
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small-spangle-galvanized-steel-coil-supplier

Small Spangle Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
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zero-spangle-galvanized-steel-coil-supplier

Zero Spangle Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
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large-spangle-galvanized-steel-coil-supplier

Large Spangle Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
Read MoreGet Quote
dx51d-z20-z275-galvanized-steel-coil-factory-in-stock-800x800-5

DX51D+Z Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
Read MoreGet Quote
dx52d-z20-z275-galvanized-steel-coil-supplier-12

DX52D+Z Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
Read MoreGet Quote
s350gd-galvanized-steel-coil-for-sale

S350GD Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
Read MoreGet Quote
g40-g60-g90-galvanized-steel-coil-supplier-800x800-1

G40 G60 G90 Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
Read MoreGet Quote
dx52d-z20-z275-galvanized-steel-coil-supplier-10

S220GD+Z Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
Read MoreGet Quote
g300-g350-g500-galvanized-steel-coil-factory

G300 G350 G550 Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
Read MoreGet Quote
……
View more related products

Routinely Stocked In Standard Lengths

StandardZinc CoatingTechnologyThickness (mm)Width (mm)Custom Size
DX51DZ40-Z270Hot Rolled or Cold Rolled0.30-10720~1860Contact us
DX52DZ40-Z270Hot Rolled or Cold Rolled0.30-10720~1860Contact us
DX54DZ40-Z270Hot Rolled or Cold Rolled0.30-10720~1860Contact us
A36Z40-Z270Hot Rolled0.30-10720~1860Contact us
A653Z40-Z270Cold Rolled0.30-10720~1860Contact us
A569Z40-Z270Hot Rolled0.30-10720~1860Contact us
A635Z40-Z270Hot Rolled0.30-10720~1860Contact us
A659Z40-Z270Hot Rolled0.30-10720~1860Contact us
A622Z40-Z270Hot Rolled0.30-10720~1860Contact us
A1011Z40-Z270Hot Rolled0.30-10720~1860Contact us
A283Z40-Z270Hot Rolled0.30-10720~1860Contact us
A570Z40-Z270Hot Rolled0.30-10720~1860Contact us
A1001Z40-Z270Hot Rolled0.30-10720~1860Contact us
A570Z40-Z270Hot Rolled0.30-10720~1860Contact us
A607Z40-Z270Hot Rolled0.30-10720~1860Contact us

inform

The grade products in the above table are our regular inventory products. If you do not find the grade or size of product you need, please CONTACT US NOW to get a one-to-one exclusive quotation service.

Product Description

Types of Galvanized steel coil

According to the base material,  galvanized coils are divided into hot-rolled galvanized coils and cold-rolled galvanized coils in Metal in China® (XINTUOYUAN). Hot-rolled galvanized coils are coated with a zinc layer on the surface of hot-rolled carbon-coated steel coils, and are tightly adhered to the steel through the formation of an iron-zinc alloy bonding layer; cold-rolled galvanized coils are the opposite of hot-rolled galvanized coils , the base material is a cold-rolled carbon steel coil coated with zinc. At Metal in China®(XINTUOYUAN), you can also choose cold rolled carbon steel coil and hot rolled carbon steel coil.

hot-rolled-galvanized-steel-coil

hot Rolled galvanized coil

Cold Rolled Galvanized-Steel Coil

cold Rolled galvanized coil

According to the surface process, Metal in China® (XINTUOYUAN) manufactures hot-dipped galvanized coils and electro-galvanized coils.Hot-dip galvanizing (HDG) is the process of coating fabricated steel by immersing it in a bath of molten zinc.Electro galvanized steel(EGI) is carbon steel with a corrosion-resistant zinc coating applied to one or both of its sides by electro-deposition.

hot-dipped-galvanized-steel-coil-factory

hot dipped galvanized coil

Electro-Galvanized-Steel-Coil

Electro Galvanized Coil

Galvanized-steel-coil-production-line

galvanized coil production line

As a Galvanized Steel Coil supplier, Metal in China®(XINTUOYUAN) has a large inventory of hot dipped and  electro Galvanized Steel Coil in Liaocheng and Wuxi, China, to meet the needs of buyers around the world.Contact us now to get the best factory quote.

Schematic Diagram of Layer Structure

Galvanized steel coil consists of basic steel (cold-rolled or hot-rolled steel), zinc coating (20-275g/m2-single side, surface treatment layer (passivation, oil coating, lacquer, phosphorous, etc.)

Feature of Spangle

Metal in China®(XINTUOYUAN) has a large inventory of regular spangle, small spangle and zero spangle galvanized coils, and large spangle galvanized coils need to be customized. If you have special purchasing requirements, please contact our factory consultants immediately, and we will give you corresponding solutions within 4 hours.

regular-spangle-coating

regular spangle

small-spangle-coating

small spangle

zero-spangle-coating

zero spangle

large-spangle-coating

large spangle

production process of Galvanized steel coil

Galvanized Steel Coils is specially designed steel sheets that are employed in several furbishing and manufacturing purposes. Steel coils are thin sheets that can be rolled up into incessant coils.
With the most advanced facilities and technology, Metal in China®(XINTUOYUAN) has a set of manual and automatic production system for galvanized coils, which can meet customers’ requirements for different parameters and high performance of products.

production-process-of-Galvanized-steel-coil

1. Pre-Treatment Process

Some rolling oil and other contaminants remain on the surface of cold rolled steel sheets following processing. These are removed by passing the electrically charged sheet through an alkaline solution which induces an electrochemical reaction.

2. Annealing

The material properties of the pre-treated steel sheet can be altered and improved through recrystallization during the annealing process.

3. Hot-Dip Galvanizing

After passing through the annealing furnace, steel sheets are dipped into a zinc pot where molten Zn is coated onto the surface. The desired coating weight is achieved by removing excess zinc before solidification with high-pressure air from an air knife.

4. Galvannealing

The surface of a steel sheet, after the air knife, can be coated with a zinc compound prior to reheating in an annealing process. Zn atoms diffuse into the Fe to create a Zn-Fe series alloy.

5. SPM & Chemical Treatment

In order to achieve a flat surface and an elegant finish, the steel sheet is processed with a skin pass mill. In order to prevent the white rust, which often forms on the surface of activated zinc, and to improve corrosion resistance, the surface is coated with a Cr-free resin.

6. Inspection & Coiling

Located at the line’s exit section are a side trimmer, inspection table, oil coating machine and coiling equipment. At this station, all products are inspected and judged relative to material specifications required by the customer.

Galvanized Steel Coil Applications

We offer a wide range of galvanized steel products according to our customers’ needs in terms of plating, quantity, lubrication and post-processing. Galvanized steel offers good corrosion resistance, formability, weldability, paintability and other useful properties and is increasingly used in many fields including civil engineering, construction and automotive.

coil-calculator

Galvanized steel coil are mainly applies in some professions, such as constructions.For the constructions, it mainly used as roofs of some industrial, residential constructions to preventing from corrosion.For the light industry, it used to produce outer cover of electrical appliances, chimney, kitchen utensil and corrosion-proved parts of automobiles.And it is also used as storage and transport in farming, animal husbandry, fishery area.

Construction-Industry

Construction Industry

Automotive-Industry

Automotive Industry

Electric Equipment box

Additional steel processing services

Cut large coils into small coils or Strip

For carbon steel coils, we offer the additional service of cutting large coils into smaller coils or strips.For container transportation, the loading weight of each container usually cannot exceed 26 tons, and each large roll is usually around 28 tons.

At seaports, each large steel coil is usually cut into 3 smaller coils for easy loading into containers. For bulk carrier transportation, the roll weight is usually required to be less than 18 tons, so most of the time, it is also necessary to cut a large roll into 2 small rolls.

slitting line process

flat coils into steel plate

For the final application, the coil needs to be flattened and cut into steel plates, so we flatten the coil and cut the coil into the required size of steel plate. In order to save the cost of container loading, it is loaded into a 20-foot container, so the cutting length is below 5800mm, usually cut into lengths of 2440mm and 5800mm according to requirements, and the width is usually 1220mm and 1500mm. After cutting the steel coil into steel plates, we can do black paint on the surface of the plates to make the plates rust-proof.

Coil cut into strip service
Steel coil cut into plate service

frequently asked questions

What is galvanized steel coil used for?

How is galvanized steel coil made?

What is the difference between galvanized steel and carbon steel?

The galvanized coil is employed outdoor, as it shows anti rusting tendencies. Most significantly, it is used in constructing strong roofing system. Galvanized steel coil can be used outside because of its natural ability to avoid rust or corrosion. The coil itself is usually available in different dimensions.

Galvanized steel products are made by cleansing and heat-treating rolled coils before dipping them into a bath of molten zinc. Through this process, the coils are plated with zinc only (GI), zinc and iron (GA) or zinc, aluminum and magnesium (PosMAC).

Galvanized steel is a carbon steel that has been coated with zinc. The most common method of zinc coating is the hot-dip process. The hot-dip process consists of submerging the carbon steel into a molten zinc bath (approximately 680 degrees Fahrenheit).

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hot-rolled-galvanized-steel-coil-supplier

Hot Rolled Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Hot Rolled
Surface
Hot Dipped
Read moreget quote
cold-rolled-galvanized-steel-coil-supplier

Cold Rolled Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
Read moreget quote
regular-spangle-galvanized-steel-coil-factory

Regular Spangle Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
Read moreget quote
small-spangle-galvanized-steel-coil-supplier

Small Spangle Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
Read moreget quote
zero-spangle-galvanized-steel-coil-supplier

Zero Spangle Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
Read moreget quote
large-spangle-galvanized-steel-coil-supplier

Large Spangle Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
Read moreget quote
dx51d-z20-z275-galvanized-steel-coil-factory-in-stock-800x800-5

DX51D+Z Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
Read moreget quote
dx52d-z20-z275-galvanized-steel-coil-supplier-12

DX52D+Z Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
Read moreget quote
s350gd-galvanized-steel-coil-for-sale

S350GD Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
Read moreget quote
g40-g60-g90-galvanized-steel-coil-supplier-800x800-1

G40 G60 G90 Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
Read moreget quote
dx52d-z20-z275-galvanized-steel-coil-supplier-10

S220GD+Z Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
Read moreget quote
g300-g350-g500-galvanized-steel-coil-factory

G300 G350 G550 Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
Read moreget quote
full-hard-galvanized-steel-coil-supplier

Full Hard Galvanized Steel Coil

Alloy
A36
Certification
ASTM
Method
Cold Rolled
Surface
Hot Dipped
Read moreget quote
steel-factory-worker

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