S250GD Galvanized Steel
When selecting a structural galvanized steel material for construction and industrial projects, buyers often seek a balance between mechanical performance, corrosion resistance, and overall cost efficiency. S250GD Galvanized Steel is one of the most widely used grades that meets these expectations. As a high-quality S250GD galvanized steel supplier, GNEE STEEL provides stable, well-controlled products designed to perform reliably across a wide range of structural applications.
S250GD is a structural-grade steel defined by its minimum yield strength of 250 MPa. It is commonly supplied in hot-dip galvanized condition, designated as S250GD+Z, where the zinc coating forms a protective barrier against corrosion. This combination makes the steel particularly suitable for environments exposed to moisture, changing temperatures, and outdoor conditions.
From a metallurgical perspective, S250GD offers a practical balance. It provides sufficient strength for load-bearing components while maintaining good formability for cold bending, roll forming, and profiling. Compared with higher-strength grades, S250GD reduces the risk of cracking during fabrication, which is especially important for complex structural shapes and mass production.
At GNEE STEEL, S250GD galvanized steel is produced under strict quality control procedures. From base steel selection to galvanizing and surface treatment, each step is monitored to ensure consistent mechanical properties, uniform zinc coating, and stable surface appearance. This attention to detail is a key reason why many customers choose GNEE STEEL as their long-term supplier.
Typical Product Specifications of S250GD Galvanized Steel
| Item | Specification |
|---|---|
| Steel Grade | S250GD |
| Standard Condition | Hot-dip galvanized (+Z) |
| Yield Strength | ≥ 250 MPa |
| Tensile Strength | 300–410 MPa |
| Zinc Coating Options | Z100 / Z140 / Z180 / Z220 |
| Thickness Range | 0.5 – 2.0 mm |
| Width Range | 800 – 1500 mm |
| Supply Form | Coil or sheet |
Surface quality is another critical factor in galvanized steel performance. Depending on project needs, S250GD galvanized steel can be supplied with regular spangle, minimized spangle, or near-zero spangle surfaces. Regular spangle is often selected for general construction where appearance is not critical, while minimized spangle is preferred for visible structures or applications requiring further painting or coating.
GNEE STEEL provides technical guidance to help customers choose the appropriate zinc coating weight and surface finish. For example, Z140 or Z180 coatings are commonly used for standard outdoor construction, offering sufficient corrosion protection without excessive material cost. In more aggressive environments, heavier zinc coatings can be recommended to extend service life.
From an application standpoint, S250GD galvanized steel is widely used for purlins, wall girts, light steel frames, support brackets, and auxiliary structural components in industrial buildings, warehouses, agricultural structures, and infrastructure projects.
S250GD Galvanized Steel Applications
| Industry | Applications |
| Construction | Structural framing, roofing, cladding, wall panels, exterior facades, support beams |
| Automotive | Body panels, chassis, underbody parts, bumpers, doors, roof frames |
| Home Appliances | Washing machines, refrigerators, dishwashers, ovens, air conditioners, water heaters |
| Agriculture | Agricultural machinery, storage tanks, silos, farm equipment, fencing materials |
| Transportation | Railcars, trailers, truck beds, bus components, cargo containers |
| Manufacturing | Industrial shelving, workstations, factory equipment, structural components |
| Energy | Power transmission towers, electrical enclosures, wind turbine frames, solar panel structures |
What distinguishes GNEE STEEL as a high-quality S250GD galvanized steel supplier is not only product conformity but also supply reliability. Stable production planning, standardized packaging, and thorough inspection processes help ensure that customers receive consistent materials across multiple batches. This consistency is particularly important for large projects that require uniform performance and appearance.
In addition, GNEE STEEL supports customization. Thickness, width, zinc coating weight, and surface treatment can be adjusted to align with project specifications and local standards. This flexibility allows customers to optimize material selection without compromising safety or durability.
Choosing a reliable supplier is as important as choosing the right steel grade. With proven experience in galvanized steel supply and a focus on long-term cooperation, GNEE STEEL continues to support customers with dependable S250GD Galvanized Steel solutions.
For detailed specifications, technical consultation, or quotations, customers are welcome to contact GNEE STEEL to discuss their project requirements.
|
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 |
