How To Choose The Material of Hydraulic Tube?

In hydraulic systems, hydraulic tubes play an important role in transmitting pressure and flow, so the choice of their materials is crucial. So, what materials can be chosen for hydraulic tubes? What material is good for hydraulic tubes?

Hydraulic tube materials mainly include carbon steel pipes, stainless steel pipes, copper pipes, aluminum pipes and non-metallic materials. Among them, carbon steel pipes have high strength and are suitable for high-pressure systems; stainless steel pipes have good corrosion resistance and are suitable for harsh environments; copper pipes have good thermal conductivity and are suitable for occasions where heat dissipation is required; aluminum pipes are light and resistant to oxidation and are suitable for mobile equipment; non-metallic materials such as rubber and plastics have the advantages of good flexibility and low price.

Main materials of hydraulic tubes

1. Copper pipes

Copper pipes have good thermal conductivity and corrosion resistance. In hydraulic systems, copper pipes are often used in occasions where heat dissipation is required, such as the suction pipes of oil pumps.

In addition, copper pipes also have good ductility and plasticity, which makes them easy to process into pipes of various shapes and specifications. However, it should be noted that the strength of copper pipes is relatively low and is not suitable for scenes with excessive pressure.

2. Stainless steel pipe

Stainless steel pipe is famous for its excellent corrosion resistance and can be divided into different models such as 304 and 316. In a humid and corrosive environment, stainless steel pipe can effectively resist the erosion of external substances and ensure the normal operation of the hydraulic system.

At the same time, stainless steel pipe also has good high temperature resistance and is suitable for high temperature working environment. However, the price of stainless steel pipe is relatively high, and it needs to be selected according to the actual use environment and cost considerations.

3. Carbon steel pipe

Carbon steel pipe is one of the most common pipes in hydraulic system. It has high strength and rigidity and can withstand greater pressure and impact.

In addition, carbon steel pipe also has good machinability, which is convenient for processing operations such as cutting, bending and welding. Therefore, in high-pressure and high-flow hydraulic systems, carbon steel pipe is the preferred pipe.

4. Aluminum pipe

Aluminum pipe has attracted widespread attention for its lightness and anti-oxidation characteristics. In mobile hydraulic equipment, aluminum pipe can reduce the overall weight of the equipment and improve the portability and flexibility of the equipment.

At the same time, aluminum pipe also has good low temperature resistance and is suitable for working environments in cold areas. However, the wear resistance of aluminum tubes is relatively poor, and it is necessary to strengthen maintenance and care during use.

5. Non-metallic hydraulic tubes

In addition to metal hydraulic tubes, there are many non-metallic hydraulic tubes available, such as rubber pipes, plastic pipes, etc. These non-metallic hydraulic tubes usually have good flexibility and corrosion resistance, and are suitable for complex and changeable installation environments. At the same time, their prices are relatively low, which can reduce the cost of hydraulic systems.

However, it should be noted that non-metallic hydraulic tubes may not be as good as metal pipes in terms of pressure and high temperature resistance, so they need to be selected carefully when used.

Performance characteristics and applicable environments of common materials

1. Brass pipes

Advantages: economical cost, good machinability, and strong corrosion resistance.

Disadvantages: low strength and cannot withstand high temperature and high pressure.

Applicable environment: low-pressure hydraulic system, ordinary air pressure system.

2. Stainless steel pipes

Advantages: excellent corrosion resistance, high strength, suitable for high temperature and high pressure.

Disadvantages: high cost, high hardness, and difficult processing.

Applicable environment: high temperature and high pressure hydraulic system, pneumatic system in harsh environment.

3. Carbon steel pipe

Advantages: strong wear resistance, good mechanical properties, low cost.

Disadvantages: susceptible to corrosion.

Applicable environment: high pressure hydraulic system.

4. Aluminum alloy pipe

Advantages: light weight, good thermal conductivity, strong corrosion resistance.

Disadvantages: low strength, poor machinability.

Applicable environment: low pressure hydraulic system, ordinary pneumatic system.

Basic requirements for hydraulic tube materials

1. The material of the hydraulic tube must have sufficient strength and rigidity to withstand the working pressure and external load of the system.

2. It must have good corrosion resistance to cope with corrosive media in various working environments.

3. It must have good sealing and wear resistance to ensure the stability and long life of the system.

Other factors to consider when selecting materials

1. The working pressure and flow of the system

Different hydraulic tube materials have different abilities to withstand pressure and flow. We need to choose the appropriate material according to the actual needs of the system.

2. Working environment

The working environment of hydraulic tubes may include high temperature, low temperature, corrosive media, etc. We need to choose materials that can adapt to these environments.

3. Economy

On the premise of meeting performance requirements, we also need to consider factors such as material price and maintenance cost to select economical and reasonable hydraulic tube materials.

Conclusion

The selection of hydraulic tube materials should comprehensively consider factors such as system working environment, use pressure, and medium. In practical applications, it should be selected according to specific requirements, and appropriate surface treatment measures should be taken to improve its corrosion resistance and wear resistance.