Stainless steel square pipe

Stainless steel square tube is a hollow strip of steel, called a square tube because its cross-section is square.

A large number of pipelines are used for transporting fluids, such as petroleum, natural gas, water, gas, steam, etc. In addition, when the bending and torsional strength are the same, they are lighter in weight, so they are also widely used in the manufacturing of mechanical parts and engineering structures.

Classification of stainless steel square pipes: Square pipes are divided into two categories: seamless steel pipes and welded steel pipes (welded pipes). According to the cross-sectional shape, it can be divided into square and rectangular pipes. Circular steel pipes are widely used, but there are also some irregular steel pipes such as semi-circular, hexagonal, equilateral triangle, octagonal, etc.

For stainless steel square pipes that are subjected to fluid pressure, hydraulic tests must be conducted to verify their pressure resistance and quality. It is considered qualified if there is no leakage, wetting, or expansion under the specified pressure.

Some steel pipes also need to undergo edge rolling tests, expansion tests, flattening tests, etc. according to standards or the requirements of the purchaser.

Specification of square tube: 5 * 5~150 * 150mm Thickness: 0.4~6.0mm

Materials of square tubes: 304, 304L, TP304, TP316L, 316, 316L, 316Ti, 321, 347H, 310S