Rectangular pipe
POSTDATE:2020.03.07 VIEWS:772 FROM:Rectangular pipe
National standard stainless steel rectangular tube is a kind of hollow long steel, because the section is square, it is called square tube. A large number of pipelines are used to transport fluid, such as oil, natural gas, water, gas, steam, etc. in addition, when bending and torsional strength are the same, the weight is lighter, so it is also widely used to manufacture mechanical parts and engineering structures.
National standard stainless steel rectangular pipe classification: square pipe is divided into seamless steel pipe and welded steel pipe (seam pipe). According to the section shape, it can be divided into square and rectangular pipes, which are widely used in circular steel pipes, but there are also some semicircle, hexagon, equilateral triangle, octagon and other special-shaped steel pipes.
For stainless steel square pipes under fluid pressure, hydraulic test shall be carried out to check their pressure resistance and quality. If there is no leakage, wetting or expansion under the specified pressure, it is qualified. Some steel pipes shall be subject to crimping test, expanding test, flattening test, etc. according to the standards or the requirements of the demander.
Specification: 5 * 5 ~ 150 * 150 mm thickness: 0.4 ~ 6.0 mm
Material: 304, 304L, TP304, TP316L, 316, 316L, 316Ti, 321, 347h, 310S
