NEWS
As infrastructure construction and industrial manufacturing continue to expand worldwide, the demand for structural-grade galvanized steel remains strong. S250GD+Z galvanized steel, specified under EN 10346, is widely recognized for its excellent balance between mechanical strength and corrosion resistance. GNEE STEEL supplies S250GD+Z galvanized steel coils and sheets to customers across construction, steel fabrication, and machinery industries.
S250GD+Z belongs to structural quality hot dip galvanized steel, where "S" indicates structural steel, "250" refers to the minimum yield strength of 250 MPa, and "+Z" confirms zinc coating protection. This grade is designed for load-bearing applications while maintaining good processing performance.
Compared to drawing-grade galvanized steel, S250GD+Z focuses more on strength and dimensional stability. It provides reliable mechanical performance under static and dynamic loads, making it suitable for long-term structural use.
| Mechanical Property | Requirement |
|---|---|
| Yield Strength | ≥ 250 MPa |
| Tensile Strength | 330 – 410 MPa |
| Elongation | ≥ 19% |
| Standard | EN 10346 |
These properties allow S250GD+Z galvanized steel to be formed, welded, and assembled efficiently without compromising structural safety.
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Zinc Coating and Corrosion Protection
Hot dip galvanizing provides a uniform zinc layer that protects steel substrates from corrosion in humid and outdoor environments. S250GD+Z is commonly supplied with Z180 or Z275 coating for construction and infrastructure projects.
| Coating Type | Corrosion Resistance Level |
|---|---|
| Z180 | Moderate outdoor exposure |
| Z275 | Harsh or coastal environments |
The zinc coating not only extends service life but also reduces long-term maintenance costs, a key consideration for large-scale projects.
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Key Application Areas
S250GD+Z galvanized steel sheets and coils are widely used in steel structures, purlins, roofing systems, guardrails, cable trays, and agricultural equipment. In recent years, demand has also increased in solar mounting systems and light steel framing, where strength and corrosion resistance are equally important.
GNEE STEEL ensures stable chemical composition, accurate coating weight control, and consistent mechanical properties across every production batch. Our export-oriented packaging, flexible specifications, and technical documentation help customers streamline import processes.
In addition to S250GD+Z, GNEE STEEL offers DX54D+Z for deep drawing, S280GD+Z and S350GD+Z for higher strength requirements, and pre-painted galvanized steel (PPGI). By providing a full range of galvanized steel solutions, GNEE STEEL strengthens customer confidence and long-term cooperation.
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Available Steel Grade(Ensure weight and support third-party testing) |
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|
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 |
-- |
|
Select type Galvanized Steel based on requirements |
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