PRODUCTS

Product Introduction

Galvanized Steel Square Tube: A general-purpose galvanized square tube suitable for building structures and decorative framing.

Designed for applications requiring a regular appearance and moderate strength, such as building framing, guardrail systems, and display shelving, it combines structural functionality with decorative effects, and offers comprehensive corrosion protection through a hot-dip galvanizing process.

Galvanized Steel Square Tube is manufactured from high-quality carbon steel through a cold-bending process and high-temperature galvanizing, resulting in a regular, aesthetically pleasing appearance and a uniform internal structure. Combining the structural efficiency of square tubes with the long-lasting protection of a galvanized coating, this product is an ideal choice for building, decorative, and lightweight structures.

Certifications and Key Benefits

GB/T 3094, ASTM A500 Certification: Compliant with ISO 1461 standards.

Structural Advantages: 30% lighter than square steel and easier to install than angle steel.

Customized Sizes: Side lengths range from 10×10 to 400×400 mm (±0.5 mm), wall thicknesses from 0.8 to 16 mm.

Minimum order quantity 1 ton: Hot dip galvanized or pre-galvanized treatment available.

Technical SpecificationsMechanical Properties

Material Composition:

Carbon (C): 0.12-0.20%

Manganese (Mn): 0.30-0.65%

Silicon (Si): ≤0.30%

Phosphorus (P): ≤0.045%

Sulfur (S): ≤0.045%

Galvanizing Process Options:

Hot-dip galvanizing: 50-130μm zinc layer, all-round protection

Pre-galvanizing: galvanizing the substrate before forming, resulting in a uniform zinc layer

Dimensional Tolerances

Applications

Building Structures: Lightweight steel structures, roof purlins, wall beams

Decorative Frames: Glass curtain wall supports, handrails, decorative grilles

Display Equipment: Mall shelves, booth frames, warehouse racks

Furniture Manufacturing: Office partitions, table and chair frames, locker frames

Machinery Protection: Equipment guardrails, safety fences, ventilation ducts

Processing Guidelines

Cutting: Band saw cutting is recommended to ensure a smooth cut.

Welding: Galvanized layer polished and welded using J422 welding rods.

Punching: CNC punching machine, hole spacing accuracy ±0.2mm

Bending: Dedicated square tube bending machine, minimum radius = 4 times the side length.

Quality Assurance

Zinc Coating Inspection: Zinc coating weight ≥ 275g/m² (GB/T 13912)

Uniformity Test: No exposed iron after four copper sulfate tests

Dimensional Inspection: Full-size sampling measurement

Surface Quality: Continuous zinc coating, no missing plating, and no burrs

Certifications: ISO 9001:2015, CE, Green Building Material Certification

Competitive Advantages

Aesthetics and Practicality: Regular appearance requires no additional decoration

Corrosion Resistance and Durability: Galvanized coating offers a service life of 15-25 years

Easy Installation: Standardized connectors ensure efficient installation

Fast Delivery: 7-12 days (Minimum Order Quantity 1 ton)

Logistics and Compliance

Standard Packaging: Strapping + Corner Protectors + Anti-Rust Paper

Special Requirements: Cut-to-length and end protection available

Compliance Certification: Conforms to safety standards for structural steel products

Comparative Analysis

Chuang Fu Yuan Steel Co., Ltd. is a multi-ISO-certified steel manufacturer specializing in carbon, stainless, and galvanized steel. We offer competitive pricing and meet ASTM/JIS standards. Receive instant quotes for bulk orders, and we offer global shipping support.

Tel: +86 18963548770

Email: info@cfysteel.com

WhatsApp: +86 18963548770

WeChat: +86 18963548770