High Weldability Zinc-Iron Alloy Coated Coil by China Suppliers & Factory for Superior Spot Welding Performance
Applications
Automotive door inners, agricultural tillage tools, and warehouse racking systems.
Key Advantages
Weldability
Contact resistance ≤1.5 mΩ enables high-speed robotic welding (120 spots/min).
Phosphatability
Coating porosity <2% ensures uniform phosphate crystal growth (1.5–3.0 g/m²).
Eco-Friendly
Halogen-free post-treatment options meet ELV/IMDS protocols.
Frequently Asked Questions
What are the primary applications for these coated coils?
They are widely used in automotive door inners, agricultural tillage tools, and warehouse racking systems.
How does the coil achieve high-speed robotic welding?
With a contact resistance of ≤1.5 mΩ, the material facilitates seamless, high-speed robotic welding at rates of up to 120 spots per minute.
What is the benefit of the low coating porosity?
The coating porosity is kept under 2%, which guarantees uniform phosphate crystal growth ranging from 1.5 to 3.0 g/m² for enhanced surface protection.
Are these zinc-iron alloy coated coils environmentally friendly?
Yes, they feature halogen-free post-treatment options that fully comply with ELV and IMDS environmental standards.
What makes the zinc-iron alloy coating superior for manufacturing?
It uniquely combines excellent weldability, superior phosphatability, and eco-friendly post-treatment options, making it ideal for structural and automotive components.

