hot-dip galvanized steel
The hot-dip galvanized steel S280GD in accordance with EN 10346 combines a high minimum yield strength of 280 N/mm² with first-class corrosion protection and excellent ease of processing. With its wide range of coating variants, it covers a broad spectrum of environmental and operating conditions – from moderate to extremely corrosive or thermally stressed environments. Whether roof and façade systems, drainage components or lightweight steel structures: S280GD offers construction companies and planners a durable, reliable and economical material solution for demanding construction projects.
S280GD impresses with a balanced combination of high strength and good formability. The minimum yield strength Rp0.2 of 280 N/mm² and a characteristic tensile strength of at least 360 N/mm² ensure reliable load-bearing capacity even under dynamic load conditions. At the same time, the hot-dip galvanized surface enables an extended service life in corrosive environments.
What Makes S280GD Galvanized Steel Practical?
S280GD Galvanized Steel combines structural strength with corrosion resistance, making it one of the most versatile galvanized steel grades in modern construction and manufacturing.
The grade designation reflects its performance:
- Structural reliability
- Minimum 280 MPa yield strength
- Hot-dip galvanized protection
This combination allows S280GD to perform well in both load-bearing and exposed environments.
Structural Applications
In structural applications, S280GD Galvanized Steel provides sufficient strength while reducing overall steel consumption.
| Application | Performance Advantage |
|---|---|
| Light steel frames | Weight reduction |
| Purlins & girts | High stiffness |
| Modular buildings | Easy assembly |
| Support structures | Long service life |
By using S280GD instead of lower-grade steel, designers can reduce thickness while maintaining safety.
Industrial and Infrastructure Uses
S280GD Galvanized Steel is also commonly used in industrial systems where durability is essential.
| Industry | Typical Products |
|---|---|
| Energy | Cable trays, supports |
| Transportation | Guardrails, brackets |
| Agriculture | Sheds, frames |
| Manufacturing | Equipment housings |
The zinc coating ensures reliable performance even in humid or semi-corrosive environments.
S280GD vs S250GD in Applications
Understanding application differences helps buyers make informed decisions.
| Criteria | S250GD | S280GD |
|---|---|---|
| Strength | Lower | Higher |
| Material Efficiency | Standard | Improved |
| Cost per Ton | Slightly lower | Moderate |
| Cost per Project | Comparable | Optimized |
Although S280GD may have a slightly higher unit price, its improved strength often reduces total project cost.
Long-Term Performance and Maintenance
S280GD Galvanized Steel offers:
- Reduced maintenance frequency
- Stable coating performance
- Resistance to rust and weathering
These advantages are critical for outdoor structures and long-term infrastructure investments.
Available Steel Grade
| Steel grade | Coating | Yield(MPA) | Tensile(MPA) | Elongation(%) |
| DX51D | Z,ZF | -- | 270-500 | 20 |
| DX52D | Z,ZF | 140-300 | 270-420 | 22 |
| DX53D | Z,ZF | 140-260 | 270-380 | 26 |
| DX54D | Z,ZF | 140-220 | 270-350 | 30 |
| S220GD | Z,ZF | 220 | 300 | 18 |
| S250GD | Z,ZF | 250 | 330 | 17 |
| S280GD | Z,ZF | 280 | 360 | 16 |
| S320GD | Z,ZF | 320 | 390 | 15 |
| S350GD | Z,ZF | 350 | 420 | 14 |
| S400GD | Z,ZF | 400 | 470 | -- |
| S450GD | Z,ZF | 450 | 530 | -- |
| S500GD | Z,ZF | 500 | 560 | -- |
For projects that demand strength, durability, and cost efficiency, S280GD Galvanized Steel is a proven solution. With controlled production standards and strict quality inspection, GNEE STEEL ensures every coil and sheet meets the required mechanical and surface performance.
By selecting S280GD Galvanized Steel, buyers gain a material that balances performance and economy, supporting safe, durable, and efficient structures worldwide.