Galvanized Steel Coil

Galvanized Steel Coil (GI) | Anti-Corrosion Zinc Coated Steel

Galvanized steel coil is a premium steel product that has been coated with a protective layer of zinc to enhance its durability and resistance to corrosion. This process, known as galvanization, creates a robust barrier against rust and oxidation, making galvanized coils one of the most widely used materials in modern industries. Manufactured through either hot-dip galvanization or electro-galvanization, galvanized steel coils combine the mechanical strength of steel with the protective properties of zinc, ensuring long-lasting performance even in harsh environments.

The galvanized steel coil is available in a variety of surface treatments, including regular spangle, minimized spangle, and zero spangle, catering to diverse aesthetic and functional requirements. With its excellent adhesion, formability, and weldability, galvanized coil is suitable for applications that demand both strength and visual appeal.

product details

Key Features

Excellent corrosion resistance with zinc coating protection

High tensile strength combined with surface durability

Available in multiple surface finishes (regular, minimized, zero spangle)

Outstanding adhesion, formability, and weldability

Long service life, even in humid or outdoor environments

Cost-effective compared to stainless steel while offering strong protection

Technical Specifications

Product	Galvanized Steel Coil (GI Coil)
Material	Carbon Steel, Mild Steel
Grade	SGCC, SGCH, DX51D, DX52D, DX53D, S220GD, S250GD, S280GD, S320GD, S350GD, Q195, Q235
Thickness Range	0.12 – 3.0 mm
Width Range	600 – 1500 mm (customizable up to 2000 mm)
Zinc Coating (Z)	Z30 – Z600 g/m² (Single / Double Side)
Coil Weight	3 – 25 MT (customizable)
Surface Finish	Chromated, Oiled, Anti-Finger (AFP), Dry
Standards	ASTM A653, EN 10346, JIS G3302, GB/T 2518, ISO 3575， etc.

Applications

Construction, Roofing & Wall Cladding
Used for roofing sheets, wall panels, structural components, gutters, downpipes, and façade systems. Excellent corrosion resistance ensures long-term durability in residential, commercial, and industrial buildings.

Automotive Panels & Chassis Components
Applied in automotive body panels, chassis reinforcements, underbody parts, and safety components. The zinc coating provides enhanced rust protection and extends service life.

Home Appliances & Electrical Equipment
Used in the outer shells of refrigerators, washing machines, air conditioners, ventilation ducts, and electrical enclosures. Smooth and uniform surfaces support coating and painting processes.

Agriculture, Infrastructure & Utility Systems
Commonly used in grain storage facilities, greenhouses, guardrails, highway barriers, cable trays, ventilation systems, and outdoor utility structures requiring long-lasting corrosion protection.

Furniture Frames, Lighting Fixtures & General Fabrication
Ideal for furniture frames, shelves, lighting housings, HVAC equipment, and various fabricated components. Cost-effective, easy to process, and suitable for welding, bending, and forming.

Product Inspection

Our steel products undergo comprehensive inspection before delivery to ensure quality and compliance with international standards. Inspections include dimensional measurements such as length, diameter, wall thickness, and width, as well as surface quality and overall appearance. Mechanical properties and chemical composition can also be tested according to customer requirements.