S280gd Z275 Z180 Structural Material Gi Steel Strip

Jan 14, 2026 Leave a message

galvanized steel strip

 

GNEE STEEL are the leading galvanized steel strip manufacturer and distributor in China which have been engaging in the field produced for 20 years with 20 years export experience.Our main products cover galvanized steel strip, galvanized steel coil, galvanized steel sheet, galvanized corrugated sheet,etc.

For galvanized steel, we have more than 10 production lines, thickness from 0.11-4mm. We can produce the zero spangle/Minimum spangle/ regular spangle/ large spangle. We can also offer the service of cutting and punching. We are very capable to custom make for you.

 

Galvanized Steel Strip

  • OEM/ODM order are accepted. Any logo printing or design are free of charges

 

Production: Galvanized steel strip
Grade: DX51D+Z, DX52D+Z, DX53D+Z, DX54D+Z, DX56D+Z, DX57D+Z, DC51D+Z, SGCC, SGCD, S220GD+Z, S250GD+Z, S280GD+Z, S320GD+Z, S350GD+Z, S550GD+Z
Types: Commercial / Drawing / Deep Drawing / Structural quality
Width: 20-600mm
Thickness: 0.11-4mm
Type of coating: galvanized
Zinc coating: 30-400gsm
Surface treatment: Oil,Passivation,chromium-free passivating,passivation+oil,chromium-free passivation+oil
Surface structure: zero spangle / minimized spangle / regular spangle/ big spangle
Package: Standard export package (Plastic film in the first layer,second layer is Kraft paper. Third layer is the tray)

 

  • Available Steel Grade

 

Steel grades Chemical composition%
Residual Element
>
Tensile strength
(MPa)
Yield strength
(MPa)
C%
<
Si%
<
Mn%
<
P%
<
S%
<
Alt
<
SGCC, DX51D+Z 0.07 0.03 0.50 0.025 0.025 0.020
Cu<0.10
Ni<0.08
Cr<0.10
As<0.05
Sn<0.05
270-500 140-280
DX52D+Z 0.06 0.03 0.45 0.025 0.025 0.020 270-420 140-300
DX53D+Z 0.03 0.03 0.40 0.020 0.020 0.020 270-380 140-260
S220GD+Z 0.17 0.30 1.00 0.035 0.30 0.020 300-440 >220
S250GD+Z 0.17 0.30 1.00 0.035 0.30 0.020 330-470 >250
S350GD+Z 0.20 0.55 1.60 0.035 0.30 0.020 420-560 >350

 

  • 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

-

 

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