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Premium Galvanized Steel Coils - Construction Grade

Compliance Standards: ASTM A653/A653M, EN 10346, JIS G3302

Material Specifications:

• Base Steel: DX51D to DX56D (structural grades available)
• Coating Type: Hot-dip galvanized (Zinc + Aluminum alloy options)
• Coating Weight:
  • Standard: Z60-Z275 (60-275 g/m²)
  • Heavy-duty: Z350-Z600 (marine/industrial use)
• Thickness Range: 0.3mm to 6.0mm (±0.03mm tolerance)
• Width Options: 600mm to 2000mm (custom slitting available)

Key Performance Features:

1. Corrosion Protection:
   • Salt spray resistance: 500-2000 hours (ASTM B117)
   • Optional chromate passivation for enhanced protection
2. Mechanical Properties:
   • Yield strength: 220-550 MPa (multiple grades available)
   • Elongation: 12-30% (depending on thickness)
3. Surface Finish:
   • Regular spangle/zero spangle options
   • Skin-passed for improved paint adhesion

Quality Assurance:

• Mill test certificates with full chemical analysis
• Third-party inspection available (SGS/TÜV)
• Continuous thickness monitoring (X-ray gauges)

Packaging & Logistics:

• Waterproof wrapping + edge protectors
• Max coil weight: 30MT (standard), ID: 508/610mm
• Container loading optimization diagrams provided