Electro Galvanized Steel Tube with 60–275 g/m² Zinc Coating for Cold Rolled ERW Tube Applications

Electro Galvanized Square Tubes and Rectangular Tubes are precision cold-formed hollow steel sections manufactured from high-quality carbon steel and coated with a uniform zinc layer through an electro-galvanizing process. The smooth, bright surface provides excellent appearance, dimensional consistency, and moderate corrosion protection, making these tubes particularly suitable for indoor applications and light structural fabrication.​

Compared with hot-dip galvanized products, electro galvanized tubes feature a finer surface finish, tighter dimensional tolerances, and easier post-processing, making them an ideal choice for furniture manufacturing, display systems, electrical enclosures, shelving, light steel structures, and decorative engineering.

For many indoor or controlled-environment projects, appearance, processing efficiency, and dimensional precision are often more important than an extremely thick zinc coating.​

Electro galvanized hollow sections provide several practical advantages:​

• Bright and uniform surface finish​
• Excellent dimensional accuracy​
• Easy welding, laser cutting, and bending​
• Lower processing cost​
• Suitable for powder coating and painting​
• Clean appearance for decorative applications​

These characteristics make electro galvanized tubing a preferred material for manufacturers requiring both functionality and aesthetics.

Electro galvanizing produces a clean and uniform metallic finish, reducing the need for additional surface preparation before painting or powder coating.​

The production process ensures stable dimensions and accurate corner geometry, improving assembly efficiency for fabricated products.​

Although the zinc layer is thinner than hot-dip galvanizing, it provides reliable protection in dry indoor environments and lightly corrosive conditions.​

The material can be processed using laser cutting, CNC punching, bending, welding, and robotic fabrication with excellent consistency.

• Desk frames​
• Cabinet structures​
• Storage racks​
• Office partitions​

• Supermarket shelving​
• Retail display stands​
• Exhibition booths​
• Product display frames​

• Ceiling support systems​
• Partition wall framing​
• Cable management structures​
• Interior steel frameworks​

• Control cabinets​
• Electrical enclosures​
• Equipment housings​
• Machine support frames​

• Handrails​
• Indoor railings​
• Metal furniture​
• Architectural decoration​

Electro galvanizing deposits a controlled layer of zinc onto the steel surface through an electrolytic process.​

The zinc coating serves two primary functions:​

The coating separates the steel substrate from moisture and oxygen under normal indoor conditions.​

The zinc layer slows oxidation and helps maintain the appearance of the steel during long-term service.​

Because the coating thickness is precisely controlled, electro galvanized tubing also provides excellent consistency for secondary finishing processes such as painting or powder coating.

• Smooth surface quality​
• Decorative appearance​
• Precision fabrication​
• Indoor structural applications​
• Cost-effective corrosion protection​

• Outdoor installation​
• Marine environments​
• Heavy industrial exposure​
• Long-term weather resistance​
• Thick zinc coating protection​

Selecting the appropriate galvanizing process according to the service environment helps optimize both performance and project cost.​