Today, let's learn about what kinds of stainless steel pipes are there

Stainless steel pipes are classified according to their material into ordinary carbon steel pipes, high-quality carbon structural steel pipes, alloy structural pipes, alloy steel pipes, bearing steel pipes, stainless steel pipes, as well as double-metal composite pipes, coated and coated pipes, etc., which are designed to save precious metals and meet special requirements. The types of stainless steel pipes are numerous and their uses vary, with different technical requirements and production methods. Currently, the outer diameter range of the produced steel pipes is 0.1 - 4500mm, and the wall thickness range is 0.01 - 250mm. To distinguish their characteristics, steel pipes are usually classified in the following way. 

2. Production Method Stainless steel pipes are classified into two major categories based on production methods: seamless pipes and welded pipes. Seamless pipes can be further divided into hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, and extruded pipes, etc. Cold drawing and cold rolling are the secondary processing of steel pipes; welded pipes include straight seam welded pipes and spiral welded pipes, etc. 

3. Cross-sectional shape Stainless steel pipes are classified into round pipes and special-shaped pipes based on their cross-sectional shapes. Special-shaped pipes include rectangular pipes, rhombic pipes, elliptical pipes, hexagonal pipes, octagonal pipes, and various asymmetrical cross-section pipes. These special-shaped pipes are widely used in various structural components, tools, and mechanical parts. Compared with round pipes, special-shaped pipes generally have larger moment of inertia and cross-sectional modulus, and greater bending and torsion resistance, which can significantly reduce the structural weight and save steel. Shaanxi Huailite Trading Co., Ltd. mainly deals in high-quality seamless steel pipes, alloy pipes, etc. from various national steel mills such as Baosteel and Baogang. It is particularly renowned in the industry for its business in thick-walled pipes, special pipes, high-pressure boiler pipes, and alloy pipes. Stainless steel pipes can also be classified into equal-section pipes and variable-section pipes based on their longitudinal cross-sectional shapes. Variable-section pipes include conical pipes, stepped pipes, and periodic section pipes, etc. 

4. Pipe end shape Stainless steel pipes can be classified into smooth pipes and threaded pipes (pipes with threads) based on their pipe end conditions. Threaded pipes can further be divided into ordinary threaded pipes (used for low-pressure purposes such as water and gas transmission, with ordinary cylindrical or conical pipe threads for connection) and special threaded pipes (used for petroleum and geological drilling, for important threaded pipes, special thread connections are adopted). For some special-purpose pipes, to compensate for the impact of threads on the strength of the pipe end, it is common to increase the thickness of the pipe end before threading (internal thickening, external thickening, or both internal and external thickening).