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Galvanized Steel Zero Spangle Dx51d+Z and S350gd+Z for Construction

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Galvanized Steel Zero Spangle Dx51d+Z and S350gd+Z for Construction
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Features
Specifications
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Galvanized Steel Coil for Construction

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Zero Spangle Dx51d+Z Steel Coil

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S350gd+Z Galvanized Steel Coil

Basic Infomation
Place of Origin: China
Brand Name: GNEE
Certification: SGS
Payment & Shipping Terms
Packaging Details: Sea-worthy packing, ie wooden or steel tray with steel strip,etc
Delivery Time: 5-9 working days
Payment Terms: Negotiable
Supply Ability: 100 ton/week
Product Description
Galvanized Steel Zero Spangle Dx51d+Z and S350gd+Z for Construction
Product Description

Galvanized Steel Coil Hot Dipped Galvanized Steel Sheet in Coil (GI) is produced by passing the Full Hard sheet which has undergone the acid washing process and rolling process through the zinc pot, thereby applying zinc film to the surface. It has excellent corrosion resistance, paintability, and workability due to Zinc's characteristics. Usually, hot-dipped galvanized steel sheet and galvanized steel coil process and specifications are basically the same.

Hot-dip galvanizing is the process of applying a protective zinc coating to a steel sheet or iron sheet, to prevent rusting.

  • Excellent anti-corrosion, paintability, and processability due to the self-sacrificing characteristic of zinc.
  • Available to select and produce the desired amount of zinc gilded and in particular enables thick zinc layers(maximum 120g/m²).
  • Classified as either zero spangle or extra smooth depending on whether the sheet undergoes skin pass treatment.
Galvanized Steel Zero Spangle Dx51d+Z and S350gd+Z for Construction 0
Performance Characteristics
Property Technical Parameters Competitive Advantage
Corrosion Resistance ≥1500h salt spray test (55% Al-Zn coating) 3-6× longer lifespan vs. galvanized steel (GI)
Heat Resistance Sustains 315°C long-term (400°C short-term peak) Outperforms GI (fails at 200°C)
Solar Reflectivity ≥75% sunlight reflectivity 20% higher than pre-painted steel
Formability Elongation ≥20% (ASTM A792) Better stamping performance than stainless
Eco-Friendliness Chromium-free passivation (RoHS compliant) Meets EU ELV directives
Galvanized Steel Zero Spangle Dx51d+Z and S350gd+Z for Construction 1
Application Cases
Industry Applications Recommended Grade Benefits
Building Envelope Airport terminals Industrial cladding AZ150 (150g/m² coating) 25-year maintenance-free, 40% lifecycle cost reduction
Appliances AC outdoor units, oven interiors AZ100 (100g/m² coating) 50% cost saving vs. stainless steel
Automotive Exhaust heat shields, fuel tank brackets AZ180 + passivation 30% weight reduction, passes 2000h salt spray
Solar Mounting Ground-mounted PV structures (desert environments) AZ200 + S550GD Sand erosion resistance, 30+ year lifespan
Agriculture Livestock barn roofs, grain silos AZ120 + PE film lamination 3× longer maintenance cycles
Key Features
Corrosion Resistance: The zinc layer acts as a barrier against oxygen and moisture in the air, preventing rust. Coating thickness ≥20g/m² significantly enhances durability.
Superior Surface Quality: Smooth and flawless surface, free from zinc spangles or burrs, enabling direct painting or printing for enhanced aesthetics.
Excellent Processability: Suitable for cold bending, stamping, and welding. The coating adheres firmly to the base steel, resisting peeling during forming.
Eco-Friendly: Some processes adopt chromium-free passivation to reduce environmental impact.
Galvanized Steel Zero Spangle Dx51d+Z and S350gd+Z for Construction 2
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Contact Person : Ms. Kelly Zhang
Tel : +8615824687445
Fax : 86-372-5055135
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