Structural Sections Galvanized Steel Pipe Square Carbon Steel Tube

Galvanized Square Tube Product Introduction

Galvanized square tubes are square cross-section steel pipes made from high-quality carbon steel or low-alloy steel, formed through cold bending and then processed with hot-dip galvanizing. The zinc coating provides excellent corrosion resistance, making them widely used in construction, municipal engineering, machinery, and other industries.

Galvanized Square Tube Specification

Galvanized Square Tube Features & Advantages

1. Superior Corrosion Resistance
Hot-dip galvanized coating provides 20-30 years of protection, suitable for humid and acidic/alkaline environments.

2. High Strength & Lightweight
Square cross-section offers excellent bending resistance, 30%-50% lighter than solid steel.

3. Easy Installation
Can be directly welded, bolted, or assembled into frameworks, improving construction efficiency.

4. Aesthetic & Durable
Smooth, uniform zinc coating requires no additional painting, reducing maintenance costs.

5. Eco-Friendly & Cost-Effective
100% recyclable, long service life, and lower total cost compared to untreated steel pipes.

Galvanized Square Tube Applications

Construction: Steel structures, stair handrails, curtain wall supports

Municipal Engineering: Streetlight poles, guardrails, drainage systems

Machinery Manufacturing: Equipment frames, conveyor tracks, storage racks

Agricultural Facilities: Greenhouse frameworks, livestock fencing

Power & Telecom: Cable trays, signal tower supports

Frequently Asked Questions (FAQ)

Q1: What’s the difference between galvanized and regular square tubes?
A1: Galvanized tubes have a zinc coating, offering 5-8 times better corrosion resistance, ideal for outdoor or humid environments.

Q2: Will zinc coating peeling affect performance?
A2: Minor peeling can be repaired with zinc-rich paint; large-scale peeling requires replacement. We recommend ≥80g/m² zinc coating for critical applications.

Q3: Can they be cut or welded on-site?
A3: Yes, but cut edges must be painted with zinc-rich primer, and welding areas should be cleaned and rust-proofed.

Q4: How to identify high-quality galvanized tubes?
A4: ① Check for uniform, defect-free coating; ② Verify zinc thickness (≥60g/m²); ③ Request compliance certificates with national standards.

Q5: How often is maintenance needed for outdoor use?
A5: Inspect every 5 years in normal conditions; industrial/coastal areas require checks every 2-3 years for zinc layer integrity.

SHANGHAI HUIYI INTERNATIONAL CO., LTD is a trading company dealing with all kinds of steel products and construction materials. 

We build long-term relationships with many factories in China since our team has dealt with trading business for many years. Our main products are Galvanized Steel, Galvalume Steel, Pre-painted Galvanized Steel, pre-painted galvalume steel, corrugated steel, cold roll steel, hot roll steel, angle bar, c channel, aluminum bubble foil, fiber cement....

Our products are mainly exported to Africa, Southeast Asia, the Middle East, Europe, which are used in projects and the construction field.

We have been continuing to supply superior products, services and solutions to customers based on our competitive advantages in brand, technology, innovation and ability.

SHANGHAI HUIYI INTERNATIONAL CO., LTD has got huge support and help from our customers and suppliers. We have been growing up at a rapid and steadily pace. We will do our best to give our customers a better price, better quality and better service.