Overview of hydraulic connector materials

 

As an important component connecting various components in the hydraulic system, the material selection of hydraulic connectors directly affects the performance, reliability and service life of the system. Common connector materials used in modern hydraulic systems mainly include carbon steel, stainless steel, brass and aluminum alloys. Each material has its own unique physical and chemical properties and is suitable for different working environments and working conditions.

 

Comparison of main material properties

 

 

Application scenarios and special application suggestions for hydraulic connectors of various materials

 

1. Application scenarios of carbon steel connectors

 

General applications:

 

Engineering machinery: high-pressure hydraulic systems of heavy equipment such as excavators and loaders

 

Industrial hydraulic systems: machine tools, presses and other occasions that require high pressure bearing capacity

 

Agricultural machinery: tractors, harvesters and other outdoor equipment (surface treatment is required)

 

 

Special application suggestions:

 

Ultra-high pressure system (>700bar): high-quality alloy steel must be selected and specially heat treated

 

Frequent disassembly occasions: surface hardened carbon steel connectors are recommended

 

2. Application scenarios of stainless steel connectors

 

General applications:

 

Food and pharmaceutical industry: hydraulic systems that meet hygienic requirements

 

Marine environment: salty and humid environments such as ships and offshore platforms

 

Chemical industry: working environments with chemical corrosive media

 

High temperature applications: high temperature conditions such as metallurgy and power generation

 

Special application suggestions:

 

Extreme low temperature environment: Austenitic stainless steel (such as 304, 316) is recommended

High purity media: Electrolytically polished stainless steel connectors should be used

Explosion-proof area: Stainless steel is the ideal choice

 

3. Application scenarios of brass connectors

 

General applications:

Low-pressure hydraulic system: hydraulic connection of small equipment and instruments

Refrigeration system: air conditioning, refrigeration equipment pipeline connection

Fuel system: automobile, aviation fuel pipeline

Drinking water system: lead-free brass can be used for drinking water pipeline

 

Special application suggestions:

Explosion-proof environment: The spark-free property of brass makes it suitable for certain explosion-proof occasions

Conductive requirements: Brass connectors can be given priority for parts that require conductive connections

 

4. Application scenarios of aluminum alloy connectors

 

General applications:

Aerospace: weight-sensitive hydraulic systems

Mobile equipment: vehicle-mounted hydraulic systems, portable hydraulic tools

Low-pressure hydraulic systems: some industrial automation equipment

Aluminum piping system: Use with aluminum pipes to avoid electrochemical corrosion

 

Special application recommendations:

High light weight requirements: Aluminum alloy is the best choice

Thermal conductivity requirements: Aluminum alloy joints can be considered for systems that require good thermal conductivity

 

The selection of hydraulic joint materials requires a comprehensive consideration of working pressure, medium characteristics, environmental conditions and cost factors. Carbon steel is suitable for high-pressure conventional environments, stainless steel is suitable for corrosive and high-hygiene occasions, brass performs well in low-pressure and conductive applications, and aluminum alloy is an ideal choice for lightweight design. With technological advances, new composite materials and smart joints will provide more possibilities for hydraulic systems. It is recommended to select the most suitable joint material according to specific working conditions in actual applications to ensure system reliability and economy.