Carbon steel pipes are made from steel ingots or solid round steel perforated into capillary tubes, which are then hot rolled, cold rolled or cold drawn.

Hot-rolled carbon steel pipes are divided into general steel pipes, low and medium 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, etc.

In addition to general steel pipes, low and medium pressure boiler steel pipes, high pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, and other steel pipes, cold-rolled carbon steel pipes also include carbon thin-walled steel pipes, alloy thin-walled steel pipes, stainless thin-walled steel pipes, Special-shaped steel pipe.

The outer diameter of hot-rolled seamless steel pipes is generally greater than 32mm, and the wall thickness is 2.5-75mm. The outer diameter of cold-rolled seamless steel pipes can be up to 6mm, and the wall thickness can be up to 0.25mm. The outer diameter of thin-walled pipes can be up to 5mm, and the wall thickness is less than 0.25mm.

Cold rolling has higher dimensional accuracy than hot rolling.

General carbon steel pipe: It is made of hot-rolled or cold-rolled high-quality carbon steel such as 10, 20, 30, 35, 45, 16Mn, 5MnV and other low-alloy structural steel or 40Cr, 30CrMnSi, 45Mn2, 40MnB and other alloy steel. Seamless pipes made of 10 and 20 grade low carbon steel are mainly used for fluid transportation pipelines.

Seamless tubes made of medium carbon steel such as 45 and 40Cr are used to manufacture mechanical parts, such as stressed parts of automobiles and tractors.

Generally, carbon steel pipes must ensure strength and flattening tests. Hot-rolled steel pipes are delivered in a hot-rolled or heat-treated state, and cold-rolled steel pipes are delivered in a heat-treated state.

Carbon steel pipes are composed of carbon and iron elements. Carbon steel pipes have excellent mechanical properties and have high strength and toughness. This enables it to effectively resist external pressure and impact, ensuring the safe operation of buildings and mechanical equipment. In addition, carbon steel pipes also have good plasticity and weldability, and can meet the special needs of different projects.

Applications of carbon steel pipes

In the construction industry, carbon steel pipes are commonly used in building structures and piping systems.

For example, it can be used to support and connect the framework of buildings and withstand the transport of water, gas and other media. In the machinery industry, carbon steel pipes can be used to manufacture various mechanical parts, such as bearings, machine tools, etc.

Carbon steel pipes are also widely used to transport liquid and gaseous media in petrochemical, electric power, chemical and other industries.

Plays an important role in engineering.

1. Due to its high strength and toughness, carbon steel pipes can support and withstand large loads, ensuring the structural stability and safety of buildings and equipment.

2. Carbon steel pipes have good corrosion resistance and can resist the erosion of the external environment for a long time. This is of great significance in some special environments, such as saltwater sea areas and chemical plants.

3. The plasticity and weldability of carbon steel pipes enable them to meet the design needs of different projects and facilitate installation and maintenance.

It is worth mentioning that although carbon steel pipes have excellent performance, they also need to pay attention to some problems during use and maintenance.

First, carbon steel pipes should be inspected regularly to ensure they are free of obvious damage and corrosion.

Secondly, a large amount of water and humid environment should be avoided during use to prevent oxidation and corrosion of the steel pipe surface.

Finally, for projects that require the use of carbon steel pipes in high and low temperature environments, steel pipes of corresponding materials should be selected to ensure their performance and safety.

In short, carbon steel pipes, as an important building material, have excellent properties and a wide range of applications.