Stainless steel and carbon steel are the same body, both are steel. Steel containing only the element carbon is called carbon steel, while stainless steel is steel with a high alloy content added to prevent rust.
1.Different production techniques
Carbon steel pipes are made by forming capillary tubes from perforated steel ingots or solid round steel, and then hot rolling, cold rolling or cold drawing.
Stainless steel pipes can be divided into equal-section pipes and variable-section pipes according to the shape of the vertical section. Variable cross-section tubes include tapered tubes, step tubes, periodic cross-section tubes, etc.
2.Different properties
Carbon steel pipe: It is made by perforating steel ingots or solid round steel to form capillary tubes, and then hot rolling, cold rolling or cold drawing.
Stainless steel pipe: It is a hollow long round steel.
3.Anti-corrosion and wear resistance
Stainless steel refers to an alloy that is resistant to weakly corrosive media (such as air, steam and water) and chemically corrosive media (such as acids, alkalis and salts). This effect is mainly due to the addition of chromium, a stainless steel element. When the chromium content exceeds 12%, an oxide film is formed on the surface of stainless steel, resulting in a passivation film. This oxide film is not easily soluble in a certain medium, plays a high isolation role, and has high corrosion resistance.
Carbon steel refers to an iron-carbon alloy with a carbon content of less than 2.11%, also known as carbon steel. It is much harder than stainless steel, but it is heavier and less malleable, and it is often “too hard to fold easily” and prone to rust.
4.Different applications
The raw material of carbon steel pipe is round tube blank. The round tube blank is cut by a cutting machine to form a blank with a length of about 1 meter, and then the blank is sent to the furnace and heated by the conveyor belt. The billet is fed into the furnace and heated at a temperature of approximately 1,200 degrees Celsius.
Stainless steel pipe is a kind of hollow long round steel, which is widely used in industrial pipelines and mechanical structural components such as petroleum, chemical industry, medical treatment, food, light industry, mechanical instruments and so on.
5.Different characteristics
Carbon steel pipes: Carbon steel pipes are divided into hot-rolled and cold-rolled (drawn) steel pipes. Hot-rolled carbon steel pipes are divided into ordinary steel pipes, medium and low-pressure boiler steel pipes, high-pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, geological steel pipes and other steel pipes.
Stainless steel pipe: Brinell hardness is the most widely used standard for stainless steel pipes. The indentation diameter is often used to indicate the hardness of the material, which is intuitive and convenient. However, it does not work with steel pipes made from harder or thinner steels.
