Electro Galvanized Steel Sheet

Electro-galvanized steel is a plating process where the steel is placed in an electrically charged solution of zinc and saline. This causes the zinc to chemically bond to the conductive steel. Electro-plating is frequently used for coiled sheet steel, which is later formed into shapes such as c-purloins, and corrugated sheets or can be formed and welded into pipes and tubes.
Products Description

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



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 With

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

ForStructure

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

ForStructure

AISI Standard

S220GD Z

0.20

0.60

0.70

0.100

0.045

0.025

S250GD With

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

Hebei Yehui Metal Materials Co., Ltd.

Hebei Yehui Metal Materials Co., Ltd.

Hebei Yehui Metal Materials Co., Ltd.

Hebei Yehui Metal Materials Co., Ltd.


 

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