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Galvanized Steel Sheet

Galvanized Steel Sheet

 

 

Galvanized steel sheet is produced by immersing cold-rolled steel in a bath of molten zinc, forming a protective coating that guards against rust and corrosion. This zinc layer acts both as a physical shield and provides cathodic protection, significantly enhancing the material’s durability in harsh environments—all while retaining its magnetic properties.

 

Widely utilized across industries such as construction, automotive, and solar energy, galvanized steel sheet is valued for its strength and excellent weather resistance. Its combination of long lifespan and cost-efficiency makes it a popular choice for structural components and outdoor applications alike.

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Company Advantages
1

Professional team

A 200-person professional service team, with strong company strength.

2

Many years of experience

With many years of industry export experience, with complete product specifications and types.

3

Satisfaction first

24-hour rapid response, transparent and reasonable prices.

4

Perfect after-sales service

Comprehensive and considerate service, with thoughtful after-sales support.

 

Product Name

Galvanized Steel Sheet/Plate

Type

Coil/Sheet/Plate/Strip

Thickness

Hot Rolled Thickness:0.12 ~ 3.00 mmCold Rolled Thickness:1.20 ~ 4.60 mm
As Your Request

Surface

Mild steel plain finish, hot dip galvanized, color coated, ect.

Internatioanal Standard

ISO 9001-2008 / ISO 630 / JIS / ASTM2.0mm-6.0mm

Standards

ASTMA53/ASTM A573/ASTM A283/Gr.D/BS1387-1985/ GB/T3091- 2001,GB/T13793-92, ISO630/E235B/JIS G3101/JIS G3131/JIS G3106/

Materials

SGCC/ CGCC/ DX51D+Z DX52D+Z DX53D+Z

Type of Coating

Cold Rolled/Hot Dipped Galvanized Steel(HDGI)

Zinc Coating

30-275g/m2

Surface Treatment

Passivation(C), Oiling(O), Lacquer sealing(L), Phosphating(P), Untreated(U)

Surface Structure

Normal spangle coating(NS), minimized spangle coating(MS), spangle-free(FS)

Width

600mm-1500mm, according to customer's requirement

ID

508mm/610mm

Coil Weight

3-20 metric ton per coil

Package

Clients' requirement and Standard export sea-worthy packing

Another Name

Hot rolled mild steel I beam , I beam , H beam ,steel beam ,beam

MOQ

1tons.We also can accept sample order.

Shipment time

Within 7-15 workdays after receiving deposit or L/C

 

Low Price High Quality SPCC Dx51d Dx52D Dx53D Z100 Z150 Z275 Cold Rolled Zinc Coated Galvanized Steel Sheet

 

The Advantage of Galvanized Steel Sheet

1.Excellent corrosion resistance: In the case of the same coating is 5-10 times of the ordinary hot dip galvanized steel plate.


2.Self-healing abilities: The cutting end face of Zinc-aluminum-magnesium steel plate and around the punching incision will be dissolved with the passage of time, forming a dense protective film composed of zinc hydroxide, acid zinc chloride and magnesium hydroxide. This protective film has low electrical conductivity and has obvious inhibitory effect on the corrosion of the section.


3.Excellent workability and damage resistance: Because zinc, aluminum and magnesium coating is very dense, smooth, coating surface hardness is 2.5 times that of ordinary galvanized, so that it has excellent tensile, stamping, bending, welding and other processing properties and excellent scratch resistance and wear resistance.


4.The environmental protection: Zinc, aluminum and magnesium surface treatment does not contain three, six valent Ming and other heavy metal ions, in line with international environmental protection (ROHS), is currently internationally recognized environmental products, in the field of environmental protection favored.

 

Hot-dip galvanizing process
 
 

Hot-dip galvanizing is to immerse the steel material in molten zinc liquid so that a layer of zinc is attached to its surface. This process includes the following steps:

 

Pretreatment

Clean and degrease the steel surface to ensure that the zinc layer can be firmly attached to the steel.

 
 

Dip plating

Immerse the treated steel in molten zinc liquid, and the zinc in the zinc liquid reacts with the steel to form an alloy layer.

 
 

Cooling and solidification

The workpiece after dip plating needs to be cooled and solidified to form a continuous zinc layer.

 
 

Post-treatment

Trim and inspect the galvanized workpiece to ensure that the quality meets the requirements

 

 

 

Electrogalvanizing (cold galvanizing)

The process of depositing a layer of zinc on the surface of steel through the principle of electrolysis. The specific steps are as follows:


Electrolyte preparation: Prepare an electrolyte containing zinc ions.

 

Electroplating: Use steel as the cathode, and through the action of electric current, zinc ions are reduced to metallic zinc on the surface of steel to form a coating.


Post-treatment: After electroplating, clean and dry the workpiece to ensure that the coating is uniform and flawless

productcate-501-512

 

Advantages of galvanized sheet
 
 

Strong anti-corrosion

The galvanized layer can effectively prevent steel oxidation and corrosion, extending the service life.

 
 
 

High cost-effectiveness

Galvanizing is an economical and effective rust prevention method, widely used in various fields.

 
 
 

Widely used

Applicable to construction, home appliances, automobiles, and other industries to meet different needs

 

 

Elements

Chemical Composition %

Mechanical Property

Material

C%

Mn%

S%

P%

Si%

Yield Point (Mpa)

Tensile Strength
(Mpa)

Elongation
(%)

Q235

<0.22

-

<0.030

<0.045

<0.30

245

400-500

26

Q235B

<0.14

<0.3

<0.030

<0.045

<0.30

235

375-460

21-26

A36

<0.24

-

<0.030

<0.045

<0.40

250

400-520

26

 

Certificates

 

productcate-1-1

 

FAQ

 

Q: What's your delivery time?

A: Our normal delivery time is 7-20 days, and it depends on your quantity and items. Of course, if you need products urgently, we also will consider arranging it firstly.

Q: What's the price of your product?

A: Our prices are based on the material grade, size, quantity and physical performance etc. So if you can offer us the detailed information, then we can give you the best reasonable price. Also, we can do special size and color for customers.

Q: Why do you think I will want to buy from you?

A: We have advantages with 20 years of professional experiences in manufacturing & designing, advanced technology & the first-class equipment, perfect logistics management, high-quality after-sales service and competitive price.

Q: What's your after-sales service?

A: We have two ways to handle claims by replacement and deduction. Of course, if the materialis not good used by wrong parameter from customer, we won't be responsible.

Q: Can I get some samples?

A: Yes. We can provide samples, you need to pay the sample fee and shipping cost in advance. We will refund the sample fee after you place your order. Please let us know your courier account or send us your fees and we will arrange to send you a sample.

Q: Can we visit your factory?

A: Warmly welcome. Once we have your schedule, we will arrange for the professional sales team to follow up on your case.

Gnee Steel (Tianjin) Co., Ltd. is one of the most professional galvanized steel sheet manufacturers and suppliers in China, specialized in providing high quality products with low price. We warmly welcome you to wholesale cheap galvanized steel sheet in stock here and get free sample from our factory. Also, customized service is available.

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