1. Material Standards & Designation

Primary Standards:

• EN 10346 - Continuously hot-dip coated steel flat products

• EN 10169 - Continuously organic coated steel flat products

Designation Explanation:

• S280GD: Structural steel with minimum yield strength of 280 MPa

• +Z: Hot-dip zinc coating

• +PE/PVDF/SMP: Organic coating type

2. Chemical Composition (% by weight, Base Steel)

3. Mechanical Properties

4. Coating System Specifications

Zinc Coating (Substrate):

Organic Coating System:

5. Physical Properties

6. Product Specifications

7. Coating Performance Characteristics

Mechanical Performance:

Weathering Performance:

• PVDF: 20+ years color retention

• SMP: 15+ years color retention

• Polyester: 10+ years color retention

• High Durability PE: 15+ years color retention

8. Testing & Inspection

Mandatory Tests:

• Tensile test (EN ISO 6892-1)

• Bend test (EN ISO 7438)

• Impact test (EN 13523-5)

• Adhesion test (EN 13523-8)

• Color difference measurement (ΔE ≤ 1.0)

• Gloss measurement (±5%)

• Film thickness measurement

Optional Tests:

• Salt spray test (1000+ hours)

• QUV weathering test (2000+ hours)

• Humidity resistance test

• Chemical resistance test

• Third-party certification

9. Applications

Structural Applications:

• Structural roofing and wall panels

• Industrial building cladding

• Warehouse structures

• Factory buildings

• Agricultural buildings

Architectural Applications:

• Curtain wall systems

• Composite panels

• Standing seam roofs

• Architectural facades

• Canopies and sunshades

Special Applications:

• Clean room panels

• Cold storage buildings

• Sports facilities

• Exhibition structures

• Modular buildings