Galvanized Steel Coil
Hot-dip galvanized steel S250GD in accordance with the EN 10346 standard is a high-quality structural steel that has been specially developed for use in the construction industry. With the material number 1.0242, S250GD has a minimum yield strength Rp0.2 of 250 N/mm² and is therefore classified in the medium strength classes of hot-dip galvanized structural steels. The EN 10346 standard not only specifies the chemical composition and mechanical properties, but also defines the hot-dip galvanizing process that creates a uniformly protective zinc coating on the steel surface. The available coatings +Z, +ZF, +ZA, +ZM, +AZ and +AS enable precise adaptation to different environmental conditions and load scenarios.
S250GD | 1.0242 Chemical Composition
| Element | Maximum Content (%) |
| Carbon (C) | 0.2 |
| Manganese (Mn) | 1.7 |
| Silicon (Si) | 0.5 |
| Phosphorus (P) | 0.1 |
| Sulfur (S) | 0.045 |
| Nitrogen (N) | 0.012 |
| Aluminum (Al) | 0.015 |
S250GD Steel Mechanical Properties
| Steel Grade | Yield Strength MPa ≥ | Tensile Strength MPa ≥ | After Breakage Percent Elongation % ≥ | Coating Adhesion | |
| Nominal Thickness mm ≤ 0.7 | Nominal Thickness mm > 0.7 | Bending Center Diameter (a = plate thickness) | |||
| S250GD+Z, S250GD+ZF, S250GD+ZA, S250GD+ZM, S250GD+AZ, S250GD+AS | 250 | 330 | 17 | 19 | 1a |
S250GD Steel Equivalent Grade
| Standard | Equivalent Grade |
| BS | FeE250G |
| ASTM | Grade B (ASTM A 466 M) |
| GB | Q235 |
| JIS | SGC340 |
S250GD Galvanized Steel Advantages
Our S250GD galvanized steel excels in strength, durability and processability, helping customers easily meet various needs in the construction and manufacturing fields with high performance and cost-effectiveness:
- High strength and good stability: S250GD guarantees a yield strength of at least 250 MPa, which can maintain structural stability under high loads, while many similar products are slightly lacking in strength.
- Excellent ductility and suitable for forming: S250GD has a higher elongation after fracture than ordinary steel on the market, and is not easy to crack during the forming process, making it very suitable for complex processing.
- Excellent corrosion resistance: We have optimized the galvanizing process to ensure that the steel can be used for a long time in humid or highly polluted environments, reducing corrosion losses, while other products have a relatively short service life in these environments.
- Good weldability and more convenient construction: It can be easily welded without preheating, saving construction time and cost, while other materials usually require more processes.
- Environmentally sustainable: S250GD has a high recycling rate and meets green manufacturing standards, making it an ideal choice for environmentally friendly 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 | -- |
Frequently Asked Questions (FAQ)
Q: What is the chemical composition of S250GD steel?
A: The chemical composition of S250GD steel typically includes carbon, manganese, phosphorus, sulfur, and a zinc coating. The specific composition balances strength, ductility, and corrosion resistance.
Q: What is the minimum yield strength of S250GD steel?
A: The minimum yield strength of S250GD steel is 250 MPa. This property ensures the steel can withstand significant stress and strain without deforming, making it a reliable choice for structural applications.
Q: How is the thickness of the steel sheet relevant to its application?
A: The thickness of the steel sheet affects its strength, weight, and flexibility. Thicker sheets offer more strength and are used in heavy-duty applications, while thinner sheets are lighter and used in applications where weight is a concern, such as automotive parts.
Q: Can S250GD steel be welded?
A: Yes, S250GD steel can be welded. However, appropriate welding techniques are important to maintain the integrity of the galvanized coating and prevent corrosion at the weld joints.
Q: What standards govern the production of S250GD galvanized steel?
A: The production of S250GD galvanized steel is governed by ASTM and EN standards, which ensure consistent quality, thickness, and properties across different batches and manufacturers.
