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High Weldability Zinc-Iron Alloy Coated Coil | China Suppliers & Factory for Durable Galvanneal Solutions
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High Weldability Zinc-Iron Alloy Coated Coil | China Suppliers & Factory for Durable Galvanneal Solutions

Introducing our premium Zinc-iron (Galvanneal) coils, expertly crafted in our advanced factory in China. These coils uniquely combine hot-dip galvanizing with in-line annealing, resulting in a high-quality Fe-Zn alloy coating (Γ-phase: Fe3Zn10). With a 10–12% iron content, our product significantly enhances spot welding performance, extending electrode life by over 300% while ensuring effective cathodic protection. Our innovative gas-jet cooling technique achieves a Vickers hardness gradient ranging from 150 HV on the surface to 220 HV in the substrate, perfectly balancing formability and dent resistance. As a leading supplier in the industry, we are committed to providing top-notch materials for all your manufacturing needs. Discover the difference with our trusted Zinc-iron coils today!

    Applications

    Automotive door inners, agricultural tillage tools, and warehouse racking systems.
    High Weldability Zinc-Iron Alloy Coated Coil (1)
    High Weldability Zinc-Iron Alloy Coated Coil (2)
    High Weldability Zinc-Iron Alloy Coated Coil (3)

    Key Advantages

    High Weldability Zinc-Iron Alloy Coated Coil
    Weldability
    Contact resistance ≤1.5 mΩ enables high-speed robotic welding (120 spots/min).
    High Weldability Zinc-Iron Alloy Coated Coil
    Phosphatability
    Coating porosity <2% ensures uniform phosphate crystal growth (1.5–3.0 g/m²).
    High Weldability Zinc-Iron Alloy Coated Coil
    Eco-Friendly
    Halogen-free post-treatment options meet ELV/IMDS protocols.

    Frequently Asked Questions (FAQ)

    What are the primary applications of these coated coils?
    They are widely used in manufacturing automotive door inners, agricultural tillage tools, and warehouse racking systems.
    How does the weldability of this coil benefit high-speed production?
    With a low contact resistance of ≤1.5 mΩ, the coil enables efficient, high-speed robotic welding at rates up to 120 spots per minute.
    Why is the low coating porosity important for phosphatability?
    A coating porosity of less than 2% ensures uniform and consistent phosphate crystal growth (1.5–3.0 g/m²), which optimizes subsequent coating adhesion.
    Are the post-treatment options environmentally friendly?
    Yes, the post-treatment options are halogen-free, ensuring full compliance with international ELV and IMDS environmental protocols.
    What makes this zinc-iron alloy coated coil stand out?
    It offers a perfect balance of excellent weldability, superior phosphatability, and eco-friendly compliance, making it ideal for demanding industrial applications.