S320GD+Z160 Zinc Coated Galvanised Steel Sheet In Structural Applications

Jan 23, 2026 Leave a message

S320GD galvanized steel

 

S320GD galvanized steel

S320GD galvanized steel

 

Need reliable S320GD galvanized steel sheets for structural projects that demand both strength and corrosion resistance? Unlike generic suppliers, GNEE focuses on structural-grade galvanized products with project-specific customization.

We can produce S320GD+Z160 galvanized steel sheets in tailored thickness (1.0-12.0mm for structural use), width (up to 3000mm), and cut-to-length sizes-matching your blueprints and load requirements.

 

Read on to learn how S320GD+Z160 galvanized steel sheets enhance structural performance, and our quality assurance for critical infrastructure projects.

 

Galvanized steel sheets are carbon steel panels coated with zinc to prevent rust, essential for structural applications exposed to weather.

Common structural uses include roofing frameworks, wall supports, and temporary structures. S320GD galvanized steel is a high-strength structural grade-with the Z160 coating (160g/m² zinc per side) delivering long-term protection for outdoor and high-humidity environments.

 

Chemical Composition of S320GD+Z160 for Structural Use

 

The chemical composition of S320GD+Z160 galvanized steel sheets is engineered to meet structural load and durability requirements:

 

Element Symbol Content (Max. %) Role in Structural Performance
Carbon C 0.12 Balances strength and weldability for joints
Manganese Mn 1.60 Enhances load-bearing capacity without brittleness
Phosphorus P 0.035 Minimized to prevent cracking under structural stress
Sulfur S 0.030 Reduced to avoid weak points in load-bearing areas
Silicon Si 0.50 Improves zinc coating adhesion for long-term protection
Titanium Ti 0.22 Refines grain structure for consistent load distribution
Niobium Nb 0.09 Enhances creep resistance under sustained loads

 

Mechanical Properties of S320GD+Z160 Structural Steel Sheets

 

S320GD+Z160 galvanized steel sheets deliver the mechanical performance required for structural safety, as shown below:

Property Standard Value Structural Significance
Yield Strength (Min.) MPa 320 Resists permanent deformation under design loads
Tensile Strength MPa 400-510 Withstands peak loads during construction/use
Elongation (Min.) % 22 Allows minor flexing without breaking
Bending Strength MPa ≥380 Handles stress from structural deflection
Impact Energy (0°C) J ≥27 Resists sudden load changes (e.g., wind, snow)
Zinc Coating Hardness HV ≥80 Prevents coating damage during installation

 

Size Specifications of S320GD+Z160 Structural Sheets

 

GNEE provides S320GD+Z160 galvanized steel sheets in sizes optimized for structural applications:

Sheet Type Thickness Range Width Range Length Range Typical Structural Applications
Standard Sheets 1.0-6.0mm 1000-2000mm 2000-6000mm Roof purlins, wall studs
Heavy-Duty Sheets 6.0-12.0mm 1200-3000mm 3000-12000mm Floor joists, support beams
Custom-Cut Sheets 1.5-10.0mm Custom (per blueprint) Custom (per blueprint) Specialized structural components

All sheets meet structural tolerance standards (±0.05mm thickness, ±2mm length/width) for precise assembly.

 

Key Structural Applications of S320GD+Z160 Galvanized Sheets

 

S320GD+Z160 galvanized steel sheets excel in various structural scenarios due to their balanced properties:

 

  • Roofing Frameworks: The Z160 coating resists rain and UV damage, while 320MPa yield strength supports snow loads.
  • Wall Cladding Supports: Formability allows bending for custom profiles, with corrosion resistance for exterior use.
  • Temporary Structures: Lightweight yet strong, ideal for construction site offices and storage facilities.
  • Agricultural Buildings: Withstands farm chemicals and humidity, requiring minimal maintenance.
  • Industrial Warehouses: Handles heavy ceiling loads while resisting interior moisture and chemical exposure.

 

S320GD galvanized steel sheets with Z160 coating are a reliable choice for structural applications, combining high strength, corrosion resistance, and formability.

 

Their consistent mechanical properties and durable zinc coating ensure long-term structural safety and reduced maintenance costs.

At GNEE, we supply S320GD+Z160 galvanized steel sheets with full structural certification. Contact us today to request load calculation reports and a customized S320GD galvanized steel quotation for your structural project.

 

  • Available Steel Grade

 

(Ensure weight and support third-party testing)

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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