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Corrosion-Resistant Galvanized Steel Sheet Multiple Thicknesses Available
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Detail
Our galvanized steel products (including sheets and coils) are engineered to deliver exceptional durability, corrosion resistance, and versatility—making them the go-to choice for construction, manufacturing, automotive, and infrastructure projects worldwide. Leveraging advanced hot-dip galvanizing (HDG) or electro-galvanizing (EG) processes, each product undergoes strict quality control to meet international standards, ensuring long-term performance in harsh environments.

Key Features & Advantages

1. Superior Corrosion Resistance

  • Hot-Dip Galvanizing (HDG): Steel is fully immersed in molten zinc (500°C), forming a tight, multi-layer zinc-iron alloy coating (20-120μm thickness). This "sacrificial protection" shields the base steel from rust, even if the coating is scratched—ideal for outdoor / 湿态 (wet) environments (e.g., roofing, fencing, marine components).

  • Electro-Galvanizing (EG): A precise electrolytic process deposits a thin, uniform zinc layer (5-20μm) for aesthetically smooth surfaces. Perfect for indoor applications or parts requiring paint adhesion (e.g., appliance casings, automotive trim).

2. Exceptional Durability & Longevity

  • Coating adhesion meets ASTM A653 (U.S.) / EN 10346 (EU) standards, resisting peeling, cracking, or chipping under temperature fluctuations (-40°C to 120°C) and mechanical impact.

  • Average service life: 20-30 years for HDG products (outdoor) and 15-20 years for EG products (indoor), reducing maintenance and replacement costs.

3. Versatile for Multiple Applications

  • Easily cut, bent, welded, or punched without damaging the zinc coating—adaptable to custom designs (e.g., structural frames, ductwork, signage).

  • Available in various surface finishes: Regular Spangle, Minimized Spangle (for paint-ready surfaces), and Zero Spangle (for high-end decorative use).

4. Cost-Effective & Eco-Friendly

  • Galvanizing is 30-50% more cost-efficient than painting or other anti-corrosion treatments over the product’s lifecycle.

  • Zinc coating is 100% recyclable, aligning with green building standards (e.g., LEED) and sustainable manufacturing goals.

Technical Specifications

ParameterHot-Dip Galvanized (HDG)Electro-Galvanized (EG)
Base Steel GradeQ235, Q355, S235JR, A36SPCC, SPCD, DC01-DC06
Zinc Coating Thickness20-120μm (Coating Weight: 40-275g/m²)5-20μm (Coating Weight: 8-50g/m²)
Sheet DimensionsThickness: 0.15-6.0mm; Width: 600-1800mm; Length: 1000-6000mmThickness: 0.10-2.0mm; Width: 600-1500mm; Length: 1000-4000mm
Coil DimensionsThickness: 0.15-3.0mm; Width: 600-1800mm; Inner Diameter: 508/610mmThickness: 0.10-1.5mm; Width: 600-1500mm; Inner Diameter: 508/610mm
Surface FinishRegular/Minimized/Zero SpangleBright/Matte (Oil-Free/Anti-Fingerprint)
Standards ComplianceASTM A653, EN 10346, JIS G3302ASTM A591, EN 10152, JIS G3313

Application Scenarios

Our galvanized steel sheets/coils are widely used across industries, thanks to their balanced performance and adaptability:

  • Construction: Roofing/siding panels, steel frames, guardrails, scaffolding, and prefabricated houses.

  • Manufacturing: HVAC ductwork, electrical cabinets, storage racks, and agricultural equipment (e.g., grain silos).

  • Automotive: Chassis components, wheel wells, and underbody parts (HDG for corrosion protection; EG for interior trim).

  • Infrastructure: Bridges, street lamps, water pipelines, and telecommunication towers.

  • Home & Commercial: Fencing, gutters, downspouts, and decorative metal art.

Quality Control & Certification

We adhere to a strict 5-step quality inspection process to ensure every product meets your expectations:

  1. Raw Material Testing: Verify base steel grade and chemical composition (e.g., carbon, manganese content).

  2. Galvanizing Process Monitoring: Control zinc bath temperature (HDG) or current density (EG) to ensure uniform coating.

  3. Coating Inspection: Use a micrometer to measure thickness; perform adhesion tests (bending/impact) and salt spray tests (500-1000 hours for HDG).

  4. Dimensional Check: Confirm thickness, width, and length with precision tools (tolerance: ±0.02mm for thickness).

  5. Final Packaging: Wrap coils in moisture-proof film; bundle sheets with steel straps to prevent damage during shipping.


Our products are certified by ISO 9001 (Quality Management System) and ISO 14001 (Environmental Management System), ensuring compliance with global market requirements.

Customization & Service

We understand that every project has unique needs—we offer flexible customization options:

  • Dimensions: Cut-to-size sheets, custom coil widths/lengths.

  • Coating: Tailored zinc coating weight (e.g., G90/G115 for HDG; 20g/m² for EG).

  • Surface Treatment: Anti-fingerprint coating, passivation (for enhanced corrosion resistance), or pre-painting.

After-Sales Support

  • Provide technical data sheets (TDS) and material safety data sheets (MSDS) for each order.

  • Offer on-site installation guidance for large-scale projects.

  • 12-month warranty against manufacturing defects (coating peeling, uneven thickness, etc.).

Why Choose Us?

  • 15+ Years of Expertise: We are a leading galvanized steel manufacturer with advanced production lines (10 HDG lines, 6 EG lines) and a daily output of 500 tons.

  • Global Supply Capacity: Our products are exported to 50+ countries (U.S., EU, Southeast Asia, Middle East) with stable lead times (7-15 days for standard orders; 20-30 days for customization).

  • Customer-Centric Approach: We assign a dedicated sales engineer to each client, providing one-stop solutions from quotation to delivery.