Gnee Steel (Tianjin) Co., Ltd.

Properties of CuZn40 (C28000) Brass

Jan 14, 2026

 CuZn40 is a brass alloy, also known as brass alloy C28000. It is composed of copper (Cu) and zinc (Zn). CuZn40 is a brass alloy with relatively high corrosion resistance and strength, making it widely used in many fields.

 

CuZn40 possesses excellent physical and chemical properties. Its strength and hardness are higher than those of pure copper, while it also exhibits excellent electrical and thermal conductivity. This makes CuZn40 an ideal material for producing electrical components and electronic devices. CuZn40 also has good plasticity, allowing it to be easily processed into various shapes and sizes. Therefore, CuZn40 is widely used in the field of mechanical manufacturing.

 

The excellent corrosion resistance of CuZn40 is also one of the reasons for its popularity. It can resist erosion from seawater, atmosphere, freshwater, and organic substances. As a result, CuZn40 is widely used in marine engineering, chemical equipment manufacturing, architectural decoration, and other fields. In coin production, CuZn40 is also a relatively common material.

 

It should be noted that although CuZn40 has many excellent properties, it also has some shortcomings. In acidic environments containing amino acids and sulfides, CuZn40 can be corroded. Additionally, in high-temperature and high-humidity environments, CuZn40 is also prone to corrosion. Therefore, when using CuZn40, attention must be paid to its environmental conditions.

C28000 brass
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C28000 composition

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Overall, CuZn40 is an excellent brass alloy with many advantageous physical and chemical properties, and it is widely used in multiple fields. However, its usage environment must be considered to ensure it performs optimally.

 

C28000 Brass, also known as Brass 60, indicates its copper content of 60%. Brass is a type of copper alloy composed of copper and zinc mixed in varying proportions. C28000 brass is a type with a relatively high zinc content, which can reach up to 40%.

 

C28000 brass is commonly used in locks, welding, water pipes, pipelines, decorative items, and musical instruments. Due to its good mechanical properties and corrosion resistance, it is widely applied in industrial manufacturing. Additionally, C28000 brass has excellent processing capabilities, making it suitable for manufacturing parts of various shapes.

 

In practical applications, C28000 brass offers many advantages. First, it has good electrical and thermal conductivity, making it commonly used in electrical engineering and HVAC systems. Second, its plasticity and processability are excellent, allowing it to be used in manufacturing parts of various shapes. Third, its golden-yellow color and attractive appearance make it a popular choice for decorative items, wall clocks, business card holders, and other fields.

 

When using C28000 brass, certain precautions are also necessary. First, brass has relatively poor corrosion resistance and is easily eroded by chemicals, so regular maintenance is required. Second, when welding brass, suitable welding rods and methods must be used to avoid poor fusion. Finally, brass is more expensive than ordinary copper, so selection should be based on specific circumstances.

 

Overall, C28000 brass is a widely used brass alloy with good mechanical properties, corrosion resistance, and processability. It plays an important role in manufacturing locks, water pipes, pipelines, decorative items, and musical instruments. By paying attention to relevant precautions during use, its advantages can be better utilized.

 

Our factory

We operate a modern, specialized copper production facility equipped with advanced continuous casting and rolling lines, precision CNC machining equipment, and a rigorous quality inspection system, focusing on the manufacturing of copper tubes, plates, rods, wires, and strips. The factory is ISO9001 certified and possesses a complete industry chain capability-from raw material smelting and precision processing to finished product sorting. With an annual production capacity of tens of thousands of tons, we can flexibly handle customized orders, ensuring that our products meet international standards in dimensional accuracy, mechanical properties, and surface finish.

C28000 properties

 

Copper product packaging

We implement customized packaging solutions based on product characteristics: copper tubes and rods are wrapped with moisture-resistant kraft paper, reinforced with bundling, and secured on wooden pallets or iron frame boxes to prevent deformation and damage during transit. Copper plates and strips are covered with protective film, separated by foam padding between layers, and externally secured with steel strapping along with waterproof packaging. Wires are coiled on industrial reels or vacuum-packed with plastic film. All packaging includes clear labels indicating product specifications, batch numbers, and protective symbols, ensuring safe delivery during long-distance sea and land transportation.

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