What Is S320GD Galvanized Steel Sheet? Properties And Typical Applications

Jan 22, 2026 Leave a message

Galvanized steel sheet

 

Galvanized steel sheet is a metal product formed by coating a zinc layer on the surface of carbon steel. It effectively isolates air and moisture, achieving excellent corrosion resistance.

 

It is widely used in automotive manufacturing, construction, home appliances, and industrial equipment. The S320GD galvanized steel sheet is a high-strength structural variant with outstanding performance.

 

Looking for trusted S320GD galvanized steel sheet suppliers? You've come to the right place. As a direct factory with 20 years of structural steel experience, GNEE Steel supplies EN 10346 compliant S320GD+Z sheets at factory prices. In this guide, we'll detail its properties, specs, and typical applications.

 

 S320GD galvanized steel sheet

S320GD galvanized steel sheet

 

Definition and Core Characteristics of S320GD Galvanized Steel Sheet

 

S320GD belongs to the structural galvanized steel series, designed for load-bearing and structural applications.

 

The "S" denotes structural use, "320" refers to minimum yield strength of 320MPa, and "GD" means it's suitable for hot-dip galvanizing.

Compared with ordinary galvanized sheets, it balances strength, formability, and corrosion resistance, ideal for demanding scenarios.

Its zinc coating adheres firmly, ensuring durability in indoor and outdoor environments.

 

Chemical Composition and Mechanical Properties of S320GD

 

The performance of S320GD galvanized steel sheet is determined by its precise chemical配比 and mechanical indicators.

Chemical Element (Wt%)

Standard Range

Carbon (C)

≤0.25%

Silicon (Si)

≤0.60%

Manganese (Mn)

≤1.70%

Phosphorus (P)

≤0.10%

Sulfur (S)

≤0.045%

 

Mechanical Property

Test Standard Value

Minimum Yield Strength

≥320MPa

Tensile Strength

360-510MPa

Elongation (A80mm)

≥20%

 

Common Sizes of S320GD Galvanized Steel Sheet

 

GNEE Steel provides S320GD galvanized steel sheets in standard and custom sizes to meet diverse project needs.

 

Thickness (mm)

Width (mm)

Length (mm)

Zinc Coating (g/㎡)

0.3-0.5

800-1500

1000-2000

Z60-Z275

0.6-1.2

800-1800

1000-2500

Z60-Z275

1.3-3.0

800-1800

1000-3000

Z60-Z275

Custom cutting and slitting services are available for specific project dimensions.

 

Typical Applications of S320GD Galvanized Steel Sheet

 

  • Automotive Manufacturing

It is widely used in automotive body panels, chassis parts, and collision beams.

The high strength of S320GD ensures driving safety, while corrosion resistance extends vehicle service life.

Its excellent formability adapts to complex stamping and bending processes.

 

  • Construction Industry

It is applied in roof panels, wall cladding, and structural supports for buildings.

Outdoor structures using S320GD can resist rain, snow, and humidity without rusting.

It balances structural stability and aesthetic performance for modern buildings.

 

  • Home Appliances and Industrial Equipment

It is used for casings of refrigerators, washing machines, and industrial control cabinets.

The smooth surface and corrosion resistance meet appliance appearance and durability requirements.

It also serves as material for cable trays and ventilation ducts in industrial settings.

 

The S320GD galvanized steel sheet is a high-performance structural material with excellent strength and corrosion resistance. It fits multiple industries from automotive to construction. Check our S320GD galvanized steel sheet specs for detailed parameters, or contact us now to get a 2026 factory price quote and customized supply plan!

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