Q345 SS400 Electro Galvanized Steel Coil 0.63mm EGI Coil for Construction and

Product Specification

Q345 SS400 Electro Galvanized Steel Coil 0.63mm EGI Coil for Construction and Industrial Equipment

１．Product Overview

Electro Galvanized Steel Coil (EGI) combines the dimensional precision of cold rolled steel with a uniform zinc coating applied through galvanizing processes. The product provides reliable corrosion resistance, excellent surface quality, and good formability for industrial manufacturing and construction applications.

With phosphate surface treatment and a high zinc coating level, this EGI coil is suitable for equipment housings, electrical cabinets, transportation components, building materials, and metal fabrication projects that require both durability and appearance quality.

２．Technical Solution

The steel substrate is coated with zinc to create a protective barrier against corrosion and environmental exposure. The phosphate treatment further enhances surface stability and improves paint adhesion for secondary finishing processes.

The combination of controlled coating thickness, smooth surface quality, and stable mechanical properties allows the material to perform well in stamping, bending, roll forming, welding, and fabrication operations.

３．Specifications

４．Application

• Building materials
• Industrial buildings
• Roofing accessories
• Transportation equipment
• Electrical control cabinets
• Industrial refrigeration equipment
• Household appliances
• Ventilation systems
• Automotive components
• Metal furniture
• Lighting fixtures
• Engineering fabrication projects

５．Processing

• Cut-to-length processing
• Slitting
• Stamping
• Punching
• Bending
• Roll forming
• Welding
• Painting
• Powder coating
• Custom fabrication

６．Advantages

• High zinc coating for enhanced corrosion protection
• Uniform surface quality
• Good paint adhesion after phosphate treatment
• Suitable for forming and fabrication
• Reliable dimensional consistency
• Compatible with automated manufacturing lines
• Wide range of industrial applications
• Stable quality for long-term service performance

７．How to Choose

• Choose zinc coating levels according to environmental conditions and corrosion resistance requirements.
• Select thickness based on load-bearing and fabrication requirements.
• Specify phosphate treatment for painting or powder coating applications.
• Confirm coil width according to processing equipment and production needs.
• Evaluate forming requirements to select the most suitable steel grade.

８．FAQ

Q1．What is EGI steel coil?

EGI stands for Electro Galvanized Iron or Electro Galvanized Steel. It is steel coated with zinc to improve corrosion resistance and surface quality.

Q2．What is the benefit of phosphate treatment?

Phosphate treatment improves paint adhesion, enhances corrosion resistance, and prepares the surface for secondary finishing processes.

Q3．Can this material be used for equipment manufacturing?

Yes. It is widely used in electrical cabinets, industrial refrigeration equipment, machinery housings, and transportation components.

Q4．Is the coil suitable for painting?

Yes. The phosphate-treated surface provides excellent adhesion for paint and powder coating systems.

Q5．What industries commonly use electro galvanized steel coils?

Construction, transportation, household appliances, industrial equipment, electrical manufacturing, furniture production, and general metal fabrication industries.