Application areas of medium carbon steel pipes

Medium carbon steel pipes refer to pipes made of carbon steel with a carbon content between 0.25% and 0.60%. This type of steel has both plasticity and toughness in performance, and has a certain strength. Through quenching and tempering treatment, the strength and hardness of medium carbon steel pipes can be significantly improved. Its hardness can reach HRC55 (or HB538), and its tensile strength σb is between 600 MPa and 1100 MPa. It can show excellent comprehensive mechanical properties, making it widely used in many fields.

Medium carbon steel pipes are mainly used in the following fields:

1. Automobile manufacturing

Medium carbon steel pipes are widely used in the field of automobile manufacturing, especially in parts such as wheels, friction plates, drive shafts and shock absorbers. Due to its high strength, moderate hardness, good rigidity, high impact toughness, strength and wear resistance, it improves the safety and durability of automobiles, and is also more economical and environmentally friendly.

2. Aerospace field
Medium carbon steel pipes are suitable for making aviation and aerospace parts, such as aircraft engines, aircraft landing gear, aircraft propellers, etc. Because medium carbon steel has high strength and toughness, it can withstand various complex stresses. Its weight is lighter than stainless steel and titanium alloy, and it is widely used in the manufacture of various light aviation parts.

3. Bearing industry
As an important part of the mechanical load system, bearings must have high strength, high precision, high wear resistance and excellent toughness. Medium carbon steel has excellent strength and wear resistance, and can be made into various rolling bearings, sliding bearings, accessories and seats, which are widely used in automobiles, machinery, electrical and high-speed trains.

4. Agricultural machinery
Medium carbon steel pipes are widely used in the manufacture of agricultural machinery and engineering vehicles due to their high strength, good ductility and strong toughness. For example, tillers, seeders, harvesters, forklifts and trucks can ensure the efficiency, stability and safety of the machine in harsh environments.

5. Building structure
In the field of building structure, medium carbon steel can be used to manufacture various building components and brackets, such as steel beams, steel columns, steel plates, channel steel, etc. The high strength and toughness of medium carbon steel can effectively bear the load, while reducing material consumption and enhancing the integrity and stability of the building structure.

Analysis of the advantages and disadvantages of medium carbon steel pipes:

With its excellent strength and hardness, medium carbon steel pipes perform well in applications requiring high strength. Its good machinability and weldability also bring it great convenience. However, it is worth noting that the toughness and plasticity of medium carbon steel are relatively weak, so it is easy to crack and deform during processing. In addition, due to the high carbon content, medium carbon steel also has a certain risk of intergranular corrosion and brittle fracture, so appropriate protective measures must be taken when using it.

When welding medium carbon steel pipes, basic low hydrogen type electrodes should be preferred because they have high resistance to cold cracking and hot cracking. In some specific cases, by strictly controlling the preheating temperature and reducing the penetration depth of the parent material to reduce the carbon content in the weld, the use of ferrocalcium type electrodes may also obtain satisfactory results.

Conclusion:

The application range of medium carbon steel pipe is very wide, from automobiles, aerospace, bearings, agricultural machinery to building structures, it has its unique role and advantages. In the future, with the continuous development of science and technology and industry, the application prospects of medium carbon steel pipe will be broader.

Read more: Advantages and disadvantages of carbon steel pipe or Types of seamless carbon steel pipes