Galvanized Coil

Galvanized coil is steel coil coated with zinc by hot-dip or electro-galvanizing to enhance corrosion resistance. It is widely used in roofing, wall panels, and manufacturing due to its durability and formability.
PRODUCTS INTRODUCTION

Technical & Material Properties


  • Base Steel: DX51D, SGCC, ASTM A653 CS Type B.

  • Coating Weight: Z40–Z275 g/m².

  • Width: 600–1250 mm; Thickness: 0.2–3.0 mm.

  • Surface Finish: Regular spangle, minimized spangle, zero spangle.

  • Corrosion Resistance: Neutral salt spray up to 720 hours for Z275.


Applications & Advantages


  • Applications: Roofing and cladding panels, ducts, steel furniture, automotive body parts, appliances.

  • Advantages:

    • Excellent rust protection at a lower cost than stainless steel

    • Easy to paint and form

    • Long service life in outdoor conditions

  • Example: Z275 galvanized coil used for agricultural barn roofing lasts 20+ years without major rust.


Manufacturing Process & Standards


  • Process:

    1. Cold rolled coil cleaning and annealing

    2. Hot-dip galvanizing in molten zinc at 460–480°C

    3. Passivation/oiling

    4. Tension leveling and coiling

  • Standards: ASTM A653, EN 10346, JIS G3302.

  • Inspection: Coating weight test, bend test, adhesion check.

  • Packaging: Steel straps, protective wrapping, coil eye protection.


Product Real Shot


Packaging and Shipping



FAQ


Q1: What product information must I provide before making a purchase?
A: Please provide the grade, width, thickness, surface treatment requirements, and the quantities you need.

Q2: What about product pricing information?
A: Prices may vary due to fluctuations in raw material costs.

Q3: Is it possible to send samples?
A: Yes, we offer free samples with express shipping worldwide.

Q4: Do you offer a service for customized products?
A: Yes, we can supply according to your specific requirements.

Q5: Can I visit you in person?
A: Customers from all over the world are welcome to meet with us.

Q6: Can you assist me in importing steel products for the first time?
A: Yes, we can provide support through our experienced shipping agents.



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