Galvanized Coil
Galvanized Coil

Galvanized Coil

Galvanized steel is a type of steel that is coated with zinc for protection by an electroplating process. The galvanized layer is applied to cold rolled steel at low temperatures. So EG steel is also known as cold galvanized steel. Through electrolytic galvanizing, a uniform and dense zinc layer is finally formed on the surface of the steel, but the mechanical properties of the material are still maintained. Electrogalvanized steel is usually sold in coil or sheet form. EG coil is a kind of material that can be cut, slitted and profiled for other purposes.

Classification :

Galvanized Steel Coil

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Galvanized Coil Description

Galvanized steel is a type of steel that is coated with zinc for protection by an electroplating process. The galvanized layer is applied to cold rolled steel at low temperatures. So EG steel is also known as cold galvanized steel. Through electrolytic galvanizing, a uniform and dense zinc layer is finally formed on the surface of the steel, but the mechanical properties of the material are still maintained. Electrogalvanized steel is usually sold in coil or sheet form. EG coil is a kind of material that can be cut, slitted and profiled for other purposes.
The steel grade of galvanized steel consists of base metal grade, galvanized (E), galvanized layer type and weight. The electro-galvanized products based on SPCC, SPCD, SPCE, SPCF and SPCG are named SECC, SECD, SECE, SECF and SECG respectively.
Full cold galvanizing process:

Chemical degreasing → hot water washing → water washing → electrolytic degreasing → water washing → acid washing → rust removal → water washing → electrogalvanizing process → water washing → passivation → hot water washing → drying → quality inspection → packaging and sales


Scope of Application

Building Materials Field
Electrogalvanizing has a wide range of applications in the field of building materials. First of all, electro-galvanizing can be used to manufacture construction steel, which not only prevents metal oxidation and prolongs its service life, but also enhances the toughness, strength and corrosion resistance of steel, and improves the performance of steel. Secondly, in the decoration of building exterior walls, electro-galvanized aluminum alloy, electro-galvanized iron alloy and other materials are also widely used, which can protect the steel structure and prevent oxidation, but also has the characteristics of beauty and fire prevention.
Automobile Manufacturing Field
Electrogalvanizing is also a commonly used material in the field of automobile manufacturing. Electro-galvanized coating can be used for surface protection and repair of automobile parts to avoid oxidation corrosion and damage, and to improve the service life of automobiles. The electro-galvanized coating can also be used in the manufacture of parts such as car frames and casings to avoid oxidation and corrosion, and improve the overall quality and durability of the car.
Home Appliance Manufacturing Field
In the field of home appliance manufacturing, galvanizing also has its important applications. For example, the manufacture of refrigerators, washing machines and other household appliances shell, lining, refrigerator and other parts, usually need to use electro-galvanized material for surface coating, to prevent metal oxidation, improve appearance and performance.
 

Product Parameters

Product Name

Galvanized Coil

Thickness

0.12mm-3.5mm

Width

600mm-1500mm

Length

508mm/610mm, Support Customization

Standard

AISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, etc.

Zinc Layer

Hot Galvanizing: 60-275g/m²

Pre-galvanized: 80-275g/m²

 

Chemical Composition

Standard

Grade

C

Si

Mn

P

S

Ti

Forcold Forming

Chinese Standard

DX51D+Z

0.12

0.50

0.60

0.100

0.045

0.30

DX52D+Z

0.12

0.50

0.60

0.100

0.045

0.30

DX53D+Z

0.12

0.50

0.60

0.100

0.045

0.30

DX54D+Z

0.12

0.50

0.60

0.100

0.045

0.30

DX56D+Z

0.12

0.50

0.60

0.100

0.045

0.30

DX57D+Z

0.12

0.50

0.60

0.100

0.045

0.30

Forcold Forming

Japanese Standard

SGCC

0.15

0.50

0.80

0.050

0.030

0.025

SGCD1
SGCD2

0.12
0.10

0.50
0.50

0.60
0.45

0.040
0.030

0.030
0.030

0.025
0.025

SGCD3

0.08

0.50

0.45

0.030

0.030

0.025

SGCD4

0.06

0.50

0.45

0.030

0.030

0.025

For Structure

Japanese Standard

SGC340

0.25

0.50

1.70

0.200

0.035

0.025

SGC400
SGC440

0.25
0.25

0.50
0.50

1.70
2.00

0.200
0.200

0.035
0.035

0.150
0.150

SGC490

0.30

0.50

2.00

0.200

0.035

0.025

SGC510

0.30

0.50

2.50

0.200

0.035

0.025

For Structure

AISI Standard

S220GD+Z

0.20

0.60

0.70

0.100

0.045

0.025

S250GD+Z

0.20

0.60

0.70

0.100

0.045

0.025

S280GD+Z

0.20

0.60

0.70

0.100

0.045

0.025

S320GD+Z

0.20

0.60

0.70

0.100

0.045

0.025

S350GD+Z

0.20

0.60

0.70

0.100

0.045

0.150

S550GD+Z

0.20

0.60

0.70

0.100

0.045

0.150

 

Mechanical Properties

Grade

Yield Strength MPa≥

Tensile Strength MPa≥

Elongation A%≥

DX51D Z/ZM/AZ/AM

240-380

270-500

22

DX52D Z/ZM/AZ/AM

140-300

270-420

26

DX53D Z/ZM/AZ/AM

140-260

270-380

30

DX54D Z/ZM/AZ/AM

120-220

260-350

36

S220GD Z/ZM/AM

220

300

20

S250GD Z/ZM/AZ/AM

250

330

19

S280GD Z/ZM/AM

280

360

18

S300GD A/AM

300

380

18

S320GD Z/ZM/AM

320

390

17

S350GD Z/ZM/AZ/AM

350

420

16

S450GD A/AM

450

480

15

S550GD Z/ZM/AZ/AM

550

550

-

 

Galvanized Surface Selection

Zero Spangle

Minimized Spangle

Normal Spangle

Large Spangle

 

Use of The Environment

Recommended Zinc Thickness

Indoor Use

Z10 or Z12 (100g/㎡or 120g/㎡)

Suburbs

Z20 and Painting (200g/㎡)

Urban or Industrial Area

Z27 (270g/㎡) or G90 (US Standard) and painted

Coastal Area

Thicker than Z27 (270g/㎡) or G90 (US Standard) and painted

Punch or Deep Drawing Application

Thicker than Z27 (270grams/㎡) or G90 (US Standard) avoid coating peeling after stamping

 

Surface Treatment Type

Code

Features

Chromic Acid Treatment

C

Good corrosion resistance, suitable for bare state

Chromic Acid Treatment+Oiling

S

Good corrosion resistance

Phosphoric Acid Treatment (Including Sealing Treatment)

P

Have a certain corrosion resistance, good paint performance

Phosphoric Acid Treatment (Including Sealing Treatment)+Oiling

Q

Has a certain corrosion resistance, good paint performance, prevent rust during transportation and storage

Phosphoric Acid Treatment (Excluding Sealing Treatment)

T

Have a certain corrosion resistance, good paint performance

Phosphoric Acid Treatment (Excluding Sealing Treatment)+Oiling

V

Has a certain corrosion resistance, good paint performance, and prevent rust

Oiling

O

Prevent rust during transportation and storage

No Treatment

M

Suitable for immediate painting

 

Material Comparison

Chinese Standard

Japan Standard

European Standard

DX51D Z/DC51D Z (CR)

SGCC

DX51D Z

DX52D Z/DC52D Z

SGCD1

DX52D With

DX53D Z/DC53D Z/DX54D Z/DC54D Z

SGCD2/SGCD3

DX53D Z/DX54D Z

S220/250/280/320/350/550GD Z

SGC340/400/440/490/570

S220/250/280/320/350GD Z

DX51D Z/DD51D Z (HR)

SGHC

DX51D Z

Packing and delivery

We have established a professional international trade service team with a sales network all over the world. With cooperation with North America, South America, Europe
We have many advantages in cooperating with many customers in Asia, Southeast Asia, the Middle East and Africa, and have established cooperative relationships in more than 50 countries including Peru, the Philippines, Russia, Ukraine, Pakistan, Indonesia, Malaysia, South Africa, Sri Lanka, Turkey, Vietnam, Laos, Brazil, Thailand, the Middle East, the United Arab Emirates, Morocco, Spain, the United States, New Zealand, and Iran.

 

QUALITY INSPECTION

The company is equipped with a complete production line, including cutting machines, bending machines, punching machines, waterjet cutting machines, polishing machines, shearing machines, and wire drawing machines.

CUSTOMER VISIT

Our products are well sold in China and exported to many countries, such as South Korea, Japan, Russia, Germany, Britain, Austria, Czech Republic, Hungary, Netherlands, Slovenia, Bulgaria, Egypt, Saudi Arabia, Iran, Kuwait, UAE, Turkey, Israel, Syria, Lebanon, Jordan, Yemen, Cyprus, Philippines, Vietnam, and Malaysia...

Australian customers visited our factory.

Australian customers visited our factory.

South African customers visited our factory.

South African customers visited our factory.

Russian customers visited our factory.

Russian customers visited our factory.

Malaysian customers visited our factory.

Malaysian customers visited our factory.

Singaporean customers visited our factory.

Singaporean customers visited our factory.

European customers visited our factory.

European customers visited our factory.

FACTORY WORKSHOP

Factory workshop
Factory workshop
Factory workshop
Factory workshop
Factory workshop
Factory workshop
Factory workshop
Factory workshop

APPLICATION FIELD

Galvanized Accessories

Galvanized Accessories

Industrial Ladder

Industrial Ladder

Infrastructure steel

Infrastructure steel

Stair Guardrail

Stair Guardrail

Automobile Manufacturing

Automobile Manufacturing

Bridge Construction

Bridge Construction

FAQ

Q: Are you manufacturer?

Q: Are you manufacturer?

A:Yes, we are a professional steel manufacturer, specializing in the production ofvarious steel products for over a decade. We possess core advantages such asadvanced prolduction lines, comprehensive certifications, and strong R&Dcapabilities. We have in-depth partnerships with many high-quality steel mills inChina (such as Baosteel, Wuhan lron and Steel, and Ansteel), enabling us to provideyou with a more comprehensive product selection, flexible supply chain solutions,and more competitive prices. Many clients choose us precisely because we canmatch their needs in a 'one-stop' manner, saving you the costs of dealing withmultiple intermediaries.
A:Yes, we are a professional steel manufacturer, specializing in the production ofvarious steel products for over a decade. We possess core advantages such asadvanced prolduction lines, comprehensive certifications, and strong R&Dcapabilities. We have in-depth partnerships with many high-quality steel mills inChina (such as Baosteel, Wuhan lron and Steel, and Ansteel), enabling us to provideyou with a more comprehensive product selection, flexible supply chain solutions,and more competitive prices. Many clients choose us precisely because we canmatch their needs in a 'one-stop' manner, saving you the costs of dealing withmultiple intermediaries.
Q:Whereisyourcompany?Whereistheloadingport?

Q:Whereisyourcompany?Whereistheloadingport?

A: Our company's foreign trade department is located in Wuxi, and we offercustomers a variety of shipping ports to choose from, such as Shanghai Port Qingdao Port, Tianjin Port, etc.
A: Our company's foreign trade department is located in Wuxi, and we offercustomers a variety of shipping ports to choose from, such as Shanghai Port Qingdao Port, Tianjin Port, etc.
Q:What certificates do you have?

Q:What certificates do you have?

A: Our certification system is mainly divided into the following categories, which lcategorize as product access certification, management system certification, anddedicated customer certification.
A: Our certification system is mainly divided into the following categories, which lcategorize as product access certification, management system certification, anddedicated customer certification.
Q:How many countries have you exported? do you have service there?

Q:How many countries have you exported? do you have service there?

A:Thank you for your interest. We possess a mature global supply chain system, andour products are stably exported to over 50 countries and regions worldwide.covering major industrial and emerging markets across six continents. Our businessprimarily focuses on the following segments, reflecting our adaptability to differentmarket standards: 1. High-end markets: such as the EU, North America, Japan, and South Korea. Wehave extensive experience in certifying and implementing standards such as CE.ASTM, and JlS, serving local infrastructure and manufacturing projects.2. Strategic project markets: We are deeply involved in key projects along the Beltand Road initiative, such as [exmples: a petrochemical project in the Middle East, abridge project in Southeast Asia], and are familiar with the stringent requirements of these projects. 3. Emerging growth markets: We have established a stable distribution network inSoutheast Asia, the Middle East, and Africa, enabling us to flexibly respond to thediverse needs oflocal markets.
A:Thank you for your interest. We possess a mature global supply chain system, andour products are stably exported to over 50 countries and regions worldwide.covering major industrial and emerging markets across six continents. Our businessprimarily focuses on the following segments, reflecting our adaptability to differentmarket standards: 1. High-end markets: such as the EU, North America, Japan, and South Korea. Wehave extensive experience in certifying and implementing standards such as CE.ASTM, and JlS, serving local infrastructure and manufacturing projects.2. Strategic project markets: We are deeply involved in key projects along the Beltand Road initiative, such as [exmples: a petrochemical project in the Middle East, abridge project in Southeast Asia], and are familiar with the stringent requirements of these projects. 3. Emerging growth markets: We have established a stable distribution network inSoutheast Asia, the Middle East, and Africa, enabling us to flexibly respond to thediverse needs oflocal markets.
Q: How to pack?

Q: How to pack?

A: Can be packaged according to customer's needs
A: Can be packaged according to customer's needs
Q: What are your payment terms?

Q: What are your payment terms?

A: New customers usually have two payment terms: 1) 30% T/T as deposit, 70% balance against copy of B/L; 2)100% irrevocable L/C at sight; lf you need any other terms, please feel free to contact us and we will try ourbest.
A: New customers usually have two payment terms: 1) 30% T/T as deposit, 70% balance against copy of B/L; 2)100% irrevocable L/C at sight; lf you need any other terms, please feel free to contact us and we will try ourbest.

Galvanized Steel Coil

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