S280GD Hot-dip Galvanized Steel Description
S280GD is a strong, low-alloy structural steel that's widely used in construction and manufacturing. With a minimum yield strength of 280 MPa, it's tough enough for demanding structural tasks. The hot-dip zinc coating provides superior protection against corrosion, guaranteeing extended durability. Thanks to this blend of strength and protection, the S280GD is perfect for structural frames, roofing systems, and other heavy-duty applications.
The name S280GD is derived from European standard EN 10346 and stands for:
- S: Structural grade steel.
- 280: Minimum yield strength of 280 MPa.
- GD: Suitable for continuous hot-dip galvanization.
GNEE STEEL offers S280GD galvanized steel in various forms, including coils, sheets, and strips. Each product supports a range of metal coatings such as Z275, Z100, and AZ150, meeting rigorous quality standards.
S280GD Steel Equivalent Grades
Under EN10346:2015, the equivalent grade for S280GD is 1.0244.
Additional Equivalent Materials (for reference only):
EN 10346: 1.0244
DIN 17162: StE280-3Z
ASTM A653: Grade 40 (structural)
JIS G3302: SGCC (structural use)
Specifications Table
| Quality | Standard | Material No. | Available coatings |
|---|---|---|---|
| S280GD | DIN EN 10346 | 1.0244 | +Z, +ZF, +ZA, +ZM, +AZ, +AS |
| Testing direction | Yield strengthRP02 (MPa) |
Tensil Strength Rm (MPa) |
Elongation A80 (in %) |
|---|---|---|---|
| L | ≥ 280 | ≥ 360 | ≥ 18 |
| C % |
Si % |
Mn % |
P % |
S % |
|---|---|---|---|---|
| ≤ 0,20 | ≤ 0,60 | ≤ 1,70 | ≤ 0,10 | ≤ 0,045 |
Applications
S280GD is used in a wide range of construction applications where high load-bearing capacity and long-lasting corrosion protection are required.
Typical areas of application are
- Roof and façade systems: trapezoidal and standing seam profiles for residential, commercial and industrial buildings.
- Drainage components: Gutters, downpipes and rainwater collectors.
- Lightweight steel construction: hall constructions, hall aprons, carports and roofing.
- Facade cladding: Profiled sheets and sandwich panels for wall and ceiling elements.
- Solar mounting systems: Frames and substructures with a long service life and low maintenance.
Thanks to the flexible overlay options, maintenance intervals can be extended and overall operating costs reduced, making the S280GD an economically attractive solution for modern construction projects.
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 | -- |