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Product Description

   Product Overview


Galvanized steel sheet is a steel sheet that forms an anti-corrosion zinc layer on the surface of the steel sheet through hot-dip or electroplating process. It has excellent rust resistance, high cost performance and good processability.


   Product Process


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



   Product Specification


Product Name

Hot Dip Galvanized Sheet

Thickness

0.12mm-6.00mm

Width

600mm-1500mm

Length

1m-12m, 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 FormingChinese 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 FormingJapanese 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 StructureJapanese 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 StructureAISI 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

-


   Product Advantages


Super strong rust resistance - zinc layer protection, corrosion resistance increased by 5-10 times


Durable - outdoor service life can reach 15-25 years


Maintenance-free - no additional anti-corrosion treatment is required, saving worry and cost


High cost performance - the price is only 1/3 of stainless steel, the performance is equivalent


Easy to process - can be stamped, bent, welded, and adapted to a variety of processes


   Factory Appearance


As a professional manufacturer with modern galvanizing lines and strict quality control system, we are committed to producing high-quality hot-dip galvanized steel sheets (GI), electrogalvanized steel sheets (EG) and galvanized steel sheets (GL). Our products are ISO certified and exported to more than 30 countries around the world. We can provide customized solutions with different zinc layer thickness, specifications and surface treatments according to customer needs.


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   Packing And Shipping


Our geographical location has convenient transportation, developed logistics, and professional logistics and shipping. We provide customers with convenient, cost-reducing, and value-added services; we have won the recognition and trust of many customers.


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   Application Areas


Galvanized sheet is widely used in roof and wall enclosure systems and steel structures in the construction industry, refrigerator and air conditioner shells and internal components in home appliance manufacturing, body sheet metal and chassis parts in the automotive industry, cable trays and cabinets in the power communication field, greenhouse frames and granaries in agricultural facilities, industrial tank conveying equipment, and filing cabinets and shelves for household items due to its excellent corrosion resistance, high strength and good processing performance. Differentiated zinc layer thickness of 40-275g/m² and special surface treatment solutions can be provided according to the requirements of different application environments.


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   Why Choose Us?


Shandong Zhongji Metal Products Co., Ltd. is a comprehensive steel enterprise integrating steel research and development, production, processing and trade. The company has a diversified product matrix, which is widely used in dozens of industries and exported to more than 50 countries and regions around the world, including Southeast Asia, the Middle East, Europe, Africa, and the Americas, and has established a good reputation in many international projects.

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