Recently a client from Europe sends a quote to us about the Seamless steel tube. So, today I will share some information about the seamless steel tube with you.
Otai company export steel arrange from the alloy steel to tool steel. The seamless steel tube is also included. ASTM A53/ASTM A106/s355/s752/st37 ,etc. If you have a need, you can choose us as your steel provider.
A steel pipe made of a single piece of metal without seams on the surface is called a seamless steel pipe. According to the production method, seamless tubes are divided into hot-rolled tubes, cold-rolled tubes, cold drawn tubes, extruded tubes, and jacked tubes.
Depending on the application, there are thick-walled pipes and thin-walled pipes. Seamless steel pipes are mainly used for petroleum geological drilling pipes, cracking pipes for the petrochemical industry, boiler pipes, bearing pipes, and high-precision structural steel pipes for automobiles, tractors, and aviation.
Classification of Seamless steel tube
Jointless steel pipe along the perimeter of its cross-section. According to different production methods, it is divided into hot-rolled pipe, cold-rolled pipe, cold-drawn pipe, extruded pipe, pipe jack, etc., all have their own process regulations. Materials are ordinary and high-quality carbon structural steel, low alloy steel, alloy steel, stainless acid-resistant steel, etc. According to the purpose, it is divided into two types: general-purpose (for water transmission, gas pipelines and structural parts, mechanical parts) and special purpose (for boilers, geological exploration, bearings, acid resistance, etc.).
Use of Seamless steel tube
- 1 Seamless steel tubes are widely used. General-purpose seamless steel tubes are rolled from ordinary carbon structural steel, low-alloy structural steel or alloy structural steel with the largest output, and are mainly used as pipelines or structural parts for conveying fluids.
- 2 It is divided into three categories according to different uses:
- Supply according to chemical composition and mechanical properties;
- Supply according to mechanical properties;
- Supply according to the hydrostatic test.
3 For steel pipes supplied according to categories a and b, if they are used to withstand liquid pressure, hydraulic tests are also required.
Special-purpose seamless pipes include boiler seamless pipes, chemical and electric power, geological seamless steel pipes and petroleum seamless pipes.
