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Steel Structure with Hot-Dip Galvanizing / Duplex Coating

- Product Model: ASTM A36/ASTM A572GR50/EN S355JR/S355J2 Steel Structure
- Unit of Measurement: Ton
- Price Range: 1300—3000 USD/T.The specific price needs to be provided with drawings and calculated based on material requirements, processing requirements, paint requirements, etc. 
- MOQ: 100 Tons

  • Overview
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Product Overview

Our Steel Structures with Hot-Dip Galvanizing or Duplex Coating are engineered to withstand harsh environmental conditions while maintaining structural integrity. They are widely used in:

  • Industrial plants

  • Power and energy infrastructure

  • Wind and solar energy projects

  • Marine and coastal construction

  • Bridges, warehouses, and heavy-duty structures

Hot-dip galvanizing provides a metallurgically bonded zinc layer that prevents rust, while duplex coating (galvanizing + protective paint) significantly extends the lifespan of steel structures and enhances aesthetics. These steel structures combine high strength, excellent durability, and low maintenance requirements, making them ideal for both onshore and offshore projects.

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Key Advantages

Exceptional Corrosion Resistance

  • Hot-dip galvanizing protects against moisture, chemicals, and outdoor elements.

  • Duplex coating adds an extra protective layer for even longer service life.

Durable and Long-Lasting

  • Designed for 20–50 years of service in demanding industrial and marine environments.

High Load-Bearing Capacity

  • Made from high-strength structural steel suitable for heavy industrial applications.

Customizable Design

  • Dimensions, coating type, and structural configuration tailored to project specifications.

Low Maintenance

  • Reduced need for repainting and maintenance compared to ordinary painted steel.

International Standards Compliance

  • Coating and structural standards meet ISO, EN, ASTM requirements.

Product Attributes

After-sales Service On site installation or installation guidance
Warranty Period 1 year
Transportation Packaging Container or bulk carrier transportation
Specification Based on actual project products
Brand Guoshun
Place of Origin Jinan
Standard European, American, and National Standards
Surface Treatment Spray painting or galvanizing

Technical Features & Production Process

Corrosion Protection Options

  1. Hot-Dip Galvanizing: Steel is immersed in molten zinc to form a durable, bonded protective layer.

  2. Duplex Coating: Combines galvanizing with an epoxy or polyurethane topcoat for enhanced corrosion resistance and aesthetics.

Production Process

  1. Material Selection: High-quality Q235B / Q355B / S355 structural steel

  2. Cutting & Machining: CNC cutting, drilling, and plate preparation

  3. Fabrication & Welding: Automatic or semi-automatic welding to assemble structural members

  4. Surface Preparation: Degreasing, pickling, or sandblasting

  5. Coating: Hot-dip galvanizing and/or duplex coating

  6. Quality Inspection: Dimensional checks, coating thickness verification, structural integrity tests

  7. Packaging & Shipping: Export-ready packaging according to international standards

Technical Specifications (Customizable)

Feature Specification
Material Q235B / Q355B / S355 Structural Steel
Surface Treatment Hot-Dip Galvanized / Duplex Coating (Galvanized + Paint)
Coating Thickness Galvanized 80–120 μm, Paint 60–120 μm
Structural Type Beams, Columns, Trusses, Platforms, Custom Fabrications
Standards ISO 1461 / ISO 12944 / EN / ASTM
Load Capacity Project-Specific
Service Life 20–50 Years
Environment Coastal, Marine, Industrial, Harsh Outdoor

Application Scenarios

  • Offshore and onshore wind farm structures

  • Solar mounting and support structures

  • Industrial plant frameworks

  • Power transmission and substation structures

  • Bridge and infrastructure steel frameworks

  • Coastal and marine construction

These structures ensure safety, reliability, and long-term performance in highly corrosive environments.

Why Choose Us

Experienced Steel Structure Manufacturer – Years of fabrication and engineering expertise
Advanced Coating Technology – Consistent high-quality galvanizing and duplex coatings
Custom Engineering Support – Tailored solutions for structural optimization and corrosion protection
Strict Quality Control – Full inspection from raw materials to finished structures
Export-Ready Solutions – Professional packaging, documentation, and shipping worldwide
Competitive Pricing & Timely Delivery – Factory-direct supply with reliable production schedules

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