There are various categories of stainless steel pipes available, each serving different purposes and having distinct technical specifications and production methods. These categories include ordinary carbon steel pipes, high-quality carbon structural steel pipes, alloy structural pipes, alloy steel pipes, bearing steel pipes, stainless steel pipes, and bimetal composite pipes. Additionally, there are plating and coating pipes that aim to conserve precious metals and fulfill specific requirements. The outer diameter of these pipes can range from 0.1mm to 4500mm, while the wall thickness can vary from 0.01mm to 250mm. To differentiate these pipes based on their characteristics, they are typically classified as follows.
There are two types of stainless steel pipes: seamless pipes and welded pipes. The production method determines the category of the pipe. Seamless steel pipes come in various forms like hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, and extruded pipes. Cold-drawn and cold-rolled pipes are considered the secondary categorization of these steel pipes. Welded pipes are bifurcated into two types- straight seam welded pipe and spiral welded pipe.
Stainless Steel Round Seamless Pipe
According to the shape of the cross-section, stainless steel pipes can be categorized into two types: round pipes and special-shaped pipes. The special-shaped pipes encompass rectangular tubes, rhombus tubes, oval tubes, hexagonal tubes, octagonal tubes, and various asymmetrical cross-section tubes. These special-shaped tubes find extensive application in structural components, mechanical parts, and tools. Unlike round pipes, the special-shaped pipes demonstrate larger moments of inertia and section modulus. This attribute confers enhanced resistance to bending and torsion, leading to significant reduction in structural weight and steel consumption.