The difference between high strength brass and ordinary brass
There are significant differences between high-strength brass and ordinary brass in many aspects. The following is a detailed comparison in terms of chemical composition, physical properties, application fields and processing performance:
1. Chemical composition
High-strength brass: The chemical formula of high-strength brass is usually ZCuZn25Al6Fe3Mn3 (some data also show that it is ZCuZn24Al6Fe4Mn3, but the main components of the two are similar). The copper content is about 65%, the zinc content is about 24%, and it contains a certain amount of aluminum, Elements such as iron and manganese. These alloying elements can significantly increase the strength, hardness and corrosion resistance of brass.
Ordinary brass: Ordinary brass is mainly composed of copper and zinc. Its zinc content varies widely, but it usually does not contain alloying elements such as aluminum, iron, and manganese. Therefore, its mechanical properties and corrosion resistance are relatively weak.
2. Physical properties
Strength and hardness: High-strength brass has high strength and hardness. Its Brinell hardness is usually greater than 200, its compressive strength is greater than 600MPa, and its elongation is greater than 10%. In comparison, regular brass has lower strength and hardness.
Corrosion resistance: Due to the content of alloy elements such as aluminum, high-strength brass is also highly resistant to chemical corrosion. Ordinary brass is relatively weak in corrosion resistance and is especially susceptible to damage in humid or corrosive environments.
3. Application fields
High-strength brass: Due to its excellent mechanical properties and corrosion resistance, Jiaxing Gurun widely uses high-strength brass to manufacture sheets, strips, rods, pipes, and cast parts. Especially in situations where high strength, high wear resistance and high corrosion resistance are required, such as the manufacturing of ship propellers, bearings, wear-resistant plates and other components, high-strength brass has irreplaceable advantages.
Ordinary brass: Ordinary brass is more commonly used in situations that do not require high mechanical properties, such as manufacturing pipe fittings, valves, radiators, etc.
4. Processing performance
High-strength brass: High-strength brass has good plasticity and can withstand hot and cold processing. However, medium-temperature brittleness is prone to occur during hot processing such as forging, and the processing temperature needs to be controlled to avoid brittle fracture. In addition, high-strength brass has excellent cutting performance and is suitable for precision machining.
Ordinary brass: Ordinary brass has relatively good processing performance and good plasticity and machinability. However, due to its weak mechanical properties, it may not perform well in some processing situations with high strength requirements.
To sum up, there are significant differences between high-strength brass and ordinary brass in terms of chemical composition, physical properties, application fields and processing performance. When choosing which brass to use, comprehensive considerations need to be made based on specific application scenarios and requirements.
