Difference between galvanized square tube and rectangular tube

Galvanized square tubes and rectangular tubes are common materials in the construction field, and there are some differences in their use. This article will introduce the differences between the two in detail from three aspects: material properties, structural shape and application scenarios.

1. Material properties

Galvanized square pipes are mainly made of ordinary carbon steel materials, and the outer surface is galvanized to improve its corrosion resistance. The galvanized layer can effectively prevent the square pipe from being oxidized and corroded during use, greatly extending the service life of the square pipe and making it more suitable for use in outdoor environments. Rectangular tubes can be made of different materials, such as ordinary carbon steel, stainless steel, etc. Rectangular tubes of different materials can be selected according to different use scenarios.

2. Structural shape

The cross-sectional shape of the galvanized square pipe is square, and the four corners are exactly equal. The cross-sectional shape of a rectangular tube is rectangular, usually with two equal long sides and two equal short sides. The cross-sectional shapes of square tubes and rectangular tubes make them structurally different and play different roles in specific application scenarios.

3. Application scenarios

Because galvanized square pipes have good anti-corrosion properties, they are often used in outdoor drainage and roof ventilation ducts of buildings. Square pipes are also relatively small in size and suitable for piping systems in some small buildings. Due to its structural characteristics, rectangular tubes are often used in larger engineering projects such as building trusses and support structures. The specifications of the rectangular pipe are larger and can meet the engineering needs.

To sum up, there are some obvious differences in material properties, structural shapes and application scenarios between galvanized square tubes and rectangular tubes. Galvanized square pipes have good anti-corrosion properties and are suitable for small building piping systems in outdoor environments; while rectangular pipes are suitable for larger engineering projects, such as building trusses, support structures, etc. Whether you choose galvanized square pipes or rectangular pipes, you need to make a reasonable choice based on actual needs to ensure that the materials can play their advantages and improve the quality of the project.

Tips: ASTM A500 — Carbon steel cold-formed round and special-shaped cross-section welded square tubes and seamless square tubes for structural use