S280gd Z275 Galvanized Steel Coil Suppliers

Jan 14, 2026 Leave a message

Galvanized Steel Coil

 

S280GD galvanized steel is a structural hot-dip galvanized steel with a minimum yield strength of 280MPa. Produced under EN 10346, ASTM A653, and JIS G3302 standards, our range includes coils, roofing panels, appliance casings, structural tubes, and custom profiles.

 

Hot Dipped Galvanized Steel Sheet in Coil (GI coil) is produced by passing theFull Hard sheet which has undergone the acid washing process and rollingprocess through the zinc pot, thereby applying zinc film to the surface.


It has excellent corrosion resistance, paintability, and workability due toZinc's characteristic. Usually hot dipped galvanized steel sheet andgalvanized steel coil process and specifications are basically the same.

 

Galvanized Steel Coil

Specifications Table

 

Product Name galvanized steel coil
Width 600mm-1500mm,according to customer's requirement
Thickness 0.12-4.00mm,or customer's requirement
Steel Grade Q195,Q235,Q235B,Q345,Q345B,SGCH,JIS G3302, ASTM A653,S280GD+Z, S350GD+Z,
SGCC, DX51D/ DX52D, SGCC,DX51D+Z/ DX52D+Z
Zinc Coating 30-275g/m2
Coil Weight 2~ 6 tons per coil
Coil Inside Diameter(mm) 508/610
Surface Treatment Passivation(C),Oiling(O),Lacquer sealing(L),Phosphating(P),Untreated(U)
Spangle coating Big Spangle, small Spangle,Spangle-free
Surface Structure Normal spangle coating(NS),minimized spangle coating(MS),spangle-free(FS)
Advantages 1.low foundation cost 2.easy construction 3.time and labor saving
Type of Coating Hot Dipped Galvanized Steel(HDGI)/Electro-Galvanised Steel(EGI)
Tolerance +/- 1%
Application Building , Corrugated sheet Roofing, electrical, Appliances, Automobile industry,
Transport Packaging ,Machinery processing ,Interior decoration , Medical
Packing Steel inner and outside guard board,Circle Iron guard board for both side,Outside iron guard board, 3 Radial Strapping and 3 Latitude Strapping.

 

Mechanical Properties

 

Parameter Standard Requirement Typical Value
Yield Strength (Rp0.2) ≥280 MPa 300-330 MPa
Tensile Strength (Rm) 380-500 MPa 400-460 MPa
Elongation (A80mm) ≥12% 15-18%
Bendability 180° d=0a No cracking

 

Global Standard Grade Comparison

 

Property Europe EN 10346 China GB/T 2518 USA ASTM A653 Japan JIS G3302
Grade S280GD+Z S280GD+Z SS Grade 40 SGCC440
Yield Strength ≥280 MPa ≥280 MPa ≥275 MPa ≥440 MPa

 

S280GD Galvanized Steel price

 

The price of S280GD+Z galvanized steel coil depends on the material, specification, surface treatment and supplier, the minimum order price is 650-850USD per ton, the thicker the zinc layer, the higher the price. Meanwhile, the price for different surface effects such as zero zinc, small zinc, fingerprint resistance, chromate passivation, etc. is also different, if you need, you can leave a message to let us know, and we will give you a free quote.

 

Available Steel Grade

 

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

-

 

FAQ:

 

What does S280GD stand for?
S280GD is a structural grade galvanized steel under EN 10346 where "S" means structural steel, "280" indicates a minimum yield strength of 280 MPa, and "GD" means hot-dip galvanizing.

What standard does S280GD comply with?
It complies with the European standard EN 10346 for hot-dip metallic coated structural steels.

What is the material number for S280GD?
The steel number equivalent is 1.0244.

What are common coating types available on S280GD?
S280GD can be galvanized with pure zinc (+Z), zinc-iron (+ZF), zinc-aluminum (+ZA), zinc-magnesium (+ZM), aluminum-zinc (+AZ) and aluminum-silicon (+AS).

What is the minimum yield strength of S280GD?
Minimum yield strength (Rp0.2) is 280 MPa.

What is the typical tensile strength?
Minimum tensile strength is around 360 MPa.

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