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Galvanized Color Coil | Anti-Corrosion Steel Coil | Cost-Effective Construction Material

Galvanized Color Coil | Anti-Corrosion Steel Coil | Cost-Effective Construction Material

MOQ: 1 tonelada
Preço: 400-700 USD/Ton
Delivery period: 7 - 15 dias
Método do pagamento: L/C,T/T
Supply Capacity: 20000tons/mês
Informações detalhadas
Lugar de origem
China
Marca
ZHONGQIANG
Certificação
ISO
Número do modelo
0,23*1000 RAL3011
Espessura da tinta:
PE PVDF
diâmetro interno:
508mm/610mm
Técnica:
Laminado a alta temperatura, Prepainted
Aplicação:
Construção, Eletrodomésticos, Automotivo, Móveis
Metal base:
Aço galvanizado de mergulho quente
Revestimento de zinco:
30-275g/m2
Recurso:
Modelagem fácil
Pintura superior:
15-25μm
Material Básico:
Bobinas de aço galvnizado
Vantagem:
Resistência à corrosão
Descrição do produto

Galvanized Color Coated Coil: Features, Production Process & Industry Prospect

I. Core Features of Galvanized Color Coated Coil

Galvanized color coated coil is a metal sheet made by applying a colored coating to a galvanized steel coil base. It combines the corrosion resistance of the galvanized layer and the decorative properties of the color coating, with the following core features:
  • Dual Corrosion Protection

    The base galvanized layer (hot-dip/electro-galvanized) isolates the steel substrate from air, while the color coating further blocks moisture, acid, and alkali erosion. Its salt spray resistance can reach 500-1000 hours, making it suitable for corrosive environments like humid areas and coastal regions.
  • High Cost-Effectiveness & Easy Processing

    Its cost is only 1/3 to 1/2 of high-end materials (e.g., aluminum-magnesium-manganese). It also has excellent bending, stamping, and cutting performance, and can be processed into roof tiles, wall panels, and other shapes.
  • Strong Decorativeness & Versatility

    It supports full-color customization (RAL/Pantone color systems) with optional surface effects (matte, glossy, wood-grain/stone-grain embossing), meeting appearance needs in construction, home appliances, and other scenarios.
  • Lightweight & Easy Installation

    With a thickness of 0.2-1.2mm, it weighs only 2-9kg per square meter. It can be installed easily with buckles or screws, significantly reducing construction costs.

II. Production Process of Galvanized Color Coated Coil

The production process consists of 4 core stages: Base Preparation → Surface Pretreatment → Coating Processing → Post-Processing
  1. Base Preparation: Galvanized Steel Coil Production
    • Hot-dip galvanizing: Immerse cold-rolled steel coils in molten zinc (≈450℃) to form a zinc-iron alloy layer (80-275g/m² thickness);
    • Electro-galvanizing: Deposit a pure zinc layer (10-50g/m² thickness) on the steel substrate via electrolysis, resulting in a smoother surface.
  2. Surface Pretreatment
    • Degreasing: Remove oil stains and dust from the coil surface with alkaline solution;
    • Phosphating/Passivation: Form a chemical conversion film to enhance adhesion between the color coating and the base;
    • Washing & Drying: Ensure no residual impurities on the surface.
  3. Coating Processing
    • Primer roller coating: 5-10μm thickness, improving corrosion resistance and adhesion;
    • Topcoat roller coating: 15-25μm thickness, optional materials include PE (general-purpose) and PVDF (high-weatherability);
    • Back coating (optional): Protects the coil’s backside from rust during storage and transportation.
  4. Post-Processing
    • High-temperature curing (200-250℃): Cross-links and cures the coating;
    • Cooling & Slitting: Cut to the required width and wind into finished coils for packaging.

III. Industry Prospect of Galvanized Color Coated Coil

1. Sustained Growth in Market Demand

  • Construction sector: As the most cost-effective roofing/wall material, it is widely used in industrial plants, affordable housing, and rural self-built houses. The global construction industry’s 5% annual growth drives steady demand.
  • Home appliance sector: A key material for refrigerator and washing machine casings, with stable demand supported by the home appliance replacement cycle.
  • Transportation sector: Commonly used for truck bodies and container side panels; logistics industry expansion further broadens its application scenarios.

2. Driven by Policies & Technological Upgrades

  • Policy side: Global environmental policies promote "steel replacing wood/plastic". As a recyclable metal material, galvanized color coated coil aligns with low-carbon trends.
  • Technology side: New technologies (e.g., high-weatherability PVDF coatings, self-cleaning coatings, thermal insulation coatings) increase product value, gradually replacing low-end traditional materials.

3. Differentiated Potential in Regional Markets

  • Europe & North America: Stable demand, focusing on high-weatherability and eco-friendly products;
  • Emerging markets: Infrastructure booms in Southeast Asia, the Middle East, and Africa drive demand for mid-low-end galvanized color coated coils, with an annual growth rate of over 8%;
  • Domestic market (China): Demand continues to release from old renovation and new infrastructure projects, while "Belt and Road" export orders grow significantly.

4. Coexisting Challenges & Opportunities

  • Challenges: Fluctuations in raw material (steel, zinc) prices affect costs; fierce competition in the mid-low-end market.
  • Opportunities: High-end (e.g., high-weatherability coatings) and customized (e.g., special textures) products have large profit margins; leading enterprises seize market share through technological upgrades.
produtos
Detalhes dos produtos
Galvanized Color Coil | Anti-Corrosion Steel Coil | Cost-Effective Construction Material
MOQ: 1 tonelada
Preço: 400-700 USD/Ton
Delivery period: 7 - 15 dias
Método do pagamento: L/C,T/T
Supply Capacity: 20000tons/mês
Informações detalhadas
Lugar de origem
China
Marca
ZHONGQIANG
Certificação
ISO
Número do modelo
0,23*1000 RAL3011
Espessura da tinta:
PE PVDF
diâmetro interno:
508mm/610mm
Técnica:
Laminado a alta temperatura, Prepainted
Aplicação:
Construção, Eletrodomésticos, Automotivo, Móveis
Metal base:
Aço galvanizado de mergulho quente
Revestimento de zinco:
30-275g/m2
Recurso:
Modelagem fácil
Pintura superior:
15-25μm
Material Básico:
Bobinas de aço galvnizado
Vantagem:
Resistência à corrosão
Quantidade de ordem mínima:
1 tonelada
Preço:
400-700 USD/Ton
Tempo de entrega:
7 - 15 dias
Termos de pagamento:
L/C,T/T
Habilidade da fonte:
20000tons/mês
Descrição do produto

Galvanized Color Coated Coil: Features, Production Process & Industry Prospect

I. Core Features of Galvanized Color Coated Coil

Galvanized color coated coil is a metal sheet made by applying a colored coating to a galvanized steel coil base. It combines the corrosion resistance of the galvanized layer and the decorative properties of the color coating, with the following core features:
  • Dual Corrosion Protection

    The base galvanized layer (hot-dip/electro-galvanized) isolates the steel substrate from air, while the color coating further blocks moisture, acid, and alkali erosion. Its salt spray resistance can reach 500-1000 hours, making it suitable for corrosive environments like humid areas and coastal regions.
  • High Cost-Effectiveness & Easy Processing

    Its cost is only 1/3 to 1/2 of high-end materials (e.g., aluminum-magnesium-manganese). It also has excellent bending, stamping, and cutting performance, and can be processed into roof tiles, wall panels, and other shapes.
  • Strong Decorativeness & Versatility

    It supports full-color customization (RAL/Pantone color systems) with optional surface effects (matte, glossy, wood-grain/stone-grain embossing), meeting appearance needs in construction, home appliances, and other scenarios.
  • Lightweight & Easy Installation

    With a thickness of 0.2-1.2mm, it weighs only 2-9kg per square meter. It can be installed easily with buckles or screws, significantly reducing construction costs.

II. Production Process of Galvanized Color Coated Coil

The production process consists of 4 core stages: Base Preparation → Surface Pretreatment → Coating Processing → Post-Processing
  1. Base Preparation: Galvanized Steel Coil Production
    • Hot-dip galvanizing: Immerse cold-rolled steel coils in molten zinc (≈450℃) to form a zinc-iron alloy layer (80-275g/m² thickness);
    • Electro-galvanizing: Deposit a pure zinc layer (10-50g/m² thickness) on the steel substrate via electrolysis, resulting in a smoother surface.
  2. Surface Pretreatment
    • Degreasing: Remove oil stains and dust from the coil surface with alkaline solution;
    • Phosphating/Passivation: Form a chemical conversion film to enhance adhesion between the color coating and the base;
    • Washing & Drying: Ensure no residual impurities on the surface.
  3. Coating Processing
    • Primer roller coating: 5-10μm thickness, improving corrosion resistance and adhesion;
    • Topcoat roller coating: 15-25μm thickness, optional materials include PE (general-purpose) and PVDF (high-weatherability);
    • Back coating (optional): Protects the coil’s backside from rust during storage and transportation.
  4. Post-Processing
    • High-temperature curing (200-250℃): Cross-links and cures the coating;
    • Cooling & Slitting: Cut to the required width and wind into finished coils for packaging.

III. Industry Prospect of Galvanized Color Coated Coil

1. Sustained Growth in Market Demand

  • Construction sector: As the most cost-effective roofing/wall material, it is widely used in industrial plants, affordable housing, and rural self-built houses. The global construction industry’s 5% annual growth drives steady demand.
  • Home appliance sector: A key material for refrigerator and washing machine casings, with stable demand supported by the home appliance replacement cycle.
  • Transportation sector: Commonly used for truck bodies and container side panels; logistics industry expansion further broadens its application scenarios.

2. Driven by Policies & Technological Upgrades

  • Policy side: Global environmental policies promote "steel replacing wood/plastic". As a recyclable metal material, galvanized color coated coil aligns with low-carbon trends.
  • Technology side: New technologies (e.g., high-weatherability PVDF coatings, self-cleaning coatings, thermal insulation coatings) increase product value, gradually replacing low-end traditional materials.

3. Differentiated Potential in Regional Markets

  • Europe & North America: Stable demand, focusing on high-weatherability and eco-friendly products;
  • Emerging markets: Infrastructure booms in Southeast Asia, the Middle East, and Africa drive demand for mid-low-end galvanized color coated coils, with an annual growth rate of over 8%;
  • Domestic market (China): Demand continues to release from old renovation and new infrastructure projects, while "Belt and Road" export orders grow significantly.

4. Coexisting Challenges & Opportunities

  • Challenges: Fluctuations in raw material (steel, zinc) prices affect costs; fierce competition in the mid-low-end market.
  • Opportunities: High-end (e.g., high-weatherability coatings) and customized (e.g., special textures) products have large profit margins; leading enterprises seize market share through technological upgrades.