Hot-dip galvanized structural steel
What Is Hot-dip galvanized steel S320GD?
Hot-dip galvanized steel S320GD in accordance with the EN 10346 standard is a high-strength structural steel specially designed for demanding applications in structural engineering and building construction. With the material number 1.0250, S320GD has a minimum yield strength Rp0.2 of 320 N/mm² and is therefore one of the steels in the higher strength classes. Hot-dip galvanizing in accordance with EN 10346 ensures that a homogeneously applied zinc coating permanently protects the base material against corrosion. The available coatings +Z, +ZF, +ZA, +ZM, +AZ and +AS allow targeted adaptation to different environmental conditions and mechanical stresses, which means that S320GD achieves exceptional durability and cost-effectiveness in construction projects.
This grade is eminently superb with regard to mechanical performance and is, therefore, widely applicable in structural uses. With very high values of yield strength and tensile strength, it is durable and, therefore, able to resist stressed deformation. It also possesses good elongation properties, under dynamic stresses, so that the steel can maintain the integrity of its structure. In addition, its impact resistance holds out against the strain of harsh environmental conditions, which commonly renders it into a very versatile steel in construction.
Exploring the Yield Strength of S320GD
| Key Point | Details |
|---|---|
| Material Number | 1.0250 |
| Standard | EN 10346 |
| Yield Strength | ≥ 320 MPa |
| Tensile Strength | 390-530 MPa |
| Elongation at Break | ≥ 17% |
| Chemical Composition | C ≤ 0.20%, Si ≤ 0.60%, Mn ≤ 1.70% |
| Coating Options | Z, ZF, ZA, ZM, AZ, AS |
| Corrosion Resistance | Enhanced by zinc coating |
| Applications | Construction, automotive, appliances |
| Thickness Range | 0.40-4.00 mm |
| Width Range | Up to 1,620 mm |
S320GD Galvanized Steel Applications
GNEE STEEL supplies S320GD steel in coils and strips, ensuring reliable quality tailored to diverse industry needs. It combination of durability, strength, and cost efficiency.
Construction and Infrastructure: Roofing panels, wall cladding, structural frameworks, bridges, guardrails, and support beams.
Automotive Industry: Body panels, chassis components, reinforcements, crash-resistant structures.
Manufacturing and Engineering: Metal enclosures, HVAC ducts, electrical cabinets, storage systems, and machinery parts.
Agricultural Equipment: Silos, fencing, farm machinery, outdoor storage facilities.
Energy and Utilities: Power transmission towers, solar panel supports, wind turbine components, industrial pipelines, and water tanks.
S320GD Galvanized Steel Chemical Composition
| Element | Maximum Content (%) |
| Carbon (C) | 0.2 |
| Silicon (Si) | 0.6 |
| Manganese (Mn) | 1.7 |
| Phosphorus (P) | 0.1 |
| Sulfur (S) | 0.045 |
S320GD Galvanized Steel Mecahmical Properties
| Property | Value |
| Tensile Strength (Rm) | 290 – 390 MPa |
| 0.2% Proof Strength (Rp0.2) | ≥ 320 MPa |
| Minimum Elongation (Lo = 80 mm) (A) | ≥ 17% |
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 | -- |
