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Sunday, June 13, 2021

The difference between carbon steel pipe and stainless steel pipe

Last updated Sunday, November 1, 2020 18:09 ET , Source: Nansteel Manufacturing Co.,Ltd

Different in nature,The production process,Anti-corrosion and wear resistance

Changsha, 中国, 11/01/2020 / SubmitMyPR /

Stainless steel and carbon steel are the same body, both are steel. Steel containing only carbon is called carbon steel, while stainless steel is steel with high alloy content added to prevent rust.

1. The production process is different

Carbon steel pipes are made by perforating steel ingots or solid round steel to form capillaries, 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, stepped tubes, periodic cross-section tubes, etc.

2. Different in nature

3. Anti-corrosion and wear resistance

Stainless steel refers to an alloy 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 attributed to the addition of chromium, the element of stainless steel. When the chromium element content exceeds 12%, an oxide film is formed on the surface of the stainless steel, which is known as a passivation film. The oxide film is not easily soluble in a certain medium and has a high isolation effect and 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. Its hardness is much higher than stainless steel, but it is heavier and less malleable, and it is usually "too hard and easy to fold" and rust easily.

4.different applications

The raw material of carbon steel pipe is round tube billet. The round tube blank is cut by a cutting machine to form a blank with a length of approximately 1 meter. The blank is then sent to the furnace and heated by the conveyor belt. The billet is fed into the furnace and heated at a temperature of approximately 1200 degrees Celsius.

Stainless steel pipe is a hollow long round steel, widely used in petroleum, chemical, medical, food, light industry, mechanical instruments and other industrial pipelines and mechanical structural parts.

5. different characteristics

1. Carbon steel pipe: Carbon steel pipe is 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.

  1. 2. Stainless steel pipe: Brinell hardness is the most widely used in stainless steel pipe standards. The indentation diameter is often used to indicate the hardness of the material, which is intuitive and convenient. However, it does not apply to steel pipes made of harder or thinner steel.

Nansteel Manufacturing Co.,Ltd

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