The difference between carbon steel pipe and stainless steel pipe and seamless steel pipe
What is the difference between carbon steel pipe and stainless steel pipe and seamless steel pipe?
Different Nature
Carbon steel pipe: It is made of ingot or solid round steel by perforation, and then hot rolling, cold rolling or cold dialing.
Stainless steel pipe: It is a hollow strip of round steel pipe. Stainless steel pipe can be divided into equal section pipe and variable section pipe according to longitudinal section shape. Variable section pipe has conical pipe, step pipe and periodic section pipe, etc.
Seamless steel pipe: It is made of a whole piece of metal, no joints on the surface of the steel pipe.
Different Characteristics
Carbon steel pipe: Carbon steel pipe is divided into hot rolled and cold rolled (drawn) steel pipe. Hot rolled carbon steel pipe is divided into general steel pipe, low and medium pressure boiler steel pipe, high pressure boiler steel pipe, alloy steel pipe, stainless steel pipe, petroleum cracking pipe, geological steel pipe and other steel pipe.
Stainless steel pipe: Stainless steel pipe according to the material is divided into ordinary carbon steel pipe, high quality carbon structure steel pipe, alloy structure pipe, alloy steel pipe, bearing steel pipe, stainless steel pipe and to save precious metal and meet the special requirements of bimetal composite pipe, coating and coating pipe. In the stainless steel pipe standard, brinell hardness is the most widely used, often to indentation diameter to represent the hardness of the material, both intuitive and convenient. However, it is not suitable for steel pipes of stiffer or thinner steel pipes.
Seamless steel pipe: According to the production method, seamless steel pipe is divided into hot rolled pipe, cold rolled pipe, cold drawn pipe, extrusion pipe, pipe jacking, etc. According to the shape of the section, seamless steel pipe can be divided into two kinds: round steel pipe and special-shaped steel pipe. Special-shaped pipe has square, oval, triangle, hexagonal, melon seed shape, star shape and many complex shapes with wings. The maximum diameter is up to 650mm and the minimum diameter is 0.3mm.
Different Applications
Carbon steel pipe: Carbon steel pipe has an important position in our steel pipe industry. The raw material of carbon steel pipe is round pipe billet. The blank of round pipe should be cut and processed by cutting machine, and the length of the billet is about 1 meter, and sent to the furnace by conveyor belt for heating. The billet is fed into the furnace and heated to a temperature of about 1200 degrees Celsius.
Stainless steel pipe: Mainly widely used in petroleum, chemical, medical, food, light industry, mechanical instruments and other industrial transmission pipes and mechanical structure components. In addition, the bending, torsional strength is the same, the weight is light, so it is also widely used in the manufacture of mechanical parts and engineering structures. Also commonly used for furniture kitchenware and so on.
Seamless steel pipe: Seamless steel pipe is mainly used for petroleum geology drilling pipe, cracking pipe for petrochemical industry, boiler pipe, bearing pipe and high precision structural steel pipe for automobile, tractor and aviation.
