NEWS
S280GD is widely recognized as a structural galvanized steel grade developed for construction and industrial applications that require a stable balance between mechanical strength and corrosion resistance. Under EN 10346, this grade is designed for structural use, offering a minimum yield strength of 280 MPa while maintaining good forming performance after galvanizing.
In recent years, the application of S280GD steel in building systems has shown steady growth. Contractors and project designers increasingly prefer galvanized structural steel solutions that can reduce long-term maintenance while remaining cost-efficient during fabrication and installation. As a result, S280GD has become a common material choice for secondary load-bearing structures, roofing systems, wall frames, and industrial support components.
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Material Characteristics Suitable for Structural Use
S280GD belongs to the structural steel category, which means it is designed to carry load while maintaining predictable mechanical behavior. Compared with lower-strength forming grades, this material provides improved stiffness, allowing designers to optimize section thickness without excessive weight increase.
| Property | Typical Performance of S280GD |
|---|---|
| Standard | EN 10346 |
| Yield strength | ≥ 280 MPa |
| Tensile strength | 360–480 MPa |
| Elongation | ≥ 18% |
| Zinc coating | Z100–Z275 |
The hot-dip galvanizing process creates a metallurgically bonded zinc layer on the steel surface, providing effective protection against corrosion in outdoor and semi-industrial environments.
The construction industry increasingly favors galvanized steel for structural applications because it eliminates the need for frequent repainting or surface treatment. Compared with painted carbon steel, galvanized structural steel offers more consistent protection and predictable service life.
S280GD structural galvanized steel fits well into this trend, especially in projects where medium load capacity and long-term durability are required. It is frequently used in modular buildings, warehouses, agricultural facilities, and infrastructure-related structures.
GNEE STEEL supplies S280GD structural galvanized steel in coil and sheet forms, with flexible thickness and coating options. With stable quality control and practical application experience, GNEE STEEL supports customers seeking reliable structural steel solutions for long-term projects.
- 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 |
0.12 |
0.50 |
0.60 |
0.040 |
0.030 |
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 |
0.25 |
0.50 |
1.70 |
0.200 |
0.035 |
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 |
