ZCuZn16Si4 Casting Brass Bushing
ZCuZn16Si4 Casting Brass Bushing
Self-lubricating bronze bearings are engineered for applications where external lubrication is impractical. Solid lubricants are compressed and molded directly into the bearing to guarantee a maintenance-free product. No additional lubrication is necessary.
Exploring ZCuZn16Si4 Casting Brass Bushing: A Corrosion-Resistant Powerhouse
ZCuZn16Si4, also known as 16-4 Silicon Brass or C87400, is a casting brass alloy with remarkable mechanical properties and excellent corrosion resistance. Its exceptional castability and high fluidity make it a preferred choice in various industrial applications.
Characteristics and Applications
ZCuZn16Si4 casting brass boasts impressive mechanical performance and corrosion resistance. Its excellent castability and high fluidity result in dense cast structures and exceptional airtightness. This makes it particularly well-suited for a range of applications, including:
Marine Components: ZCuZn16Si4 is commonly used for pipe fittings, water pumps, impellers, and valve bodies that operate in contact with seawater. Its corrosion resistance ensures longevity even in harsh marine environments.
High-Pressure Environments: The alloy thrives in high-pressure conditions exceeding 4.5MPa, making it ideal for applications where robust materials are required.
High-Temperature Applications: With a working temperature of up to 250°C, ZCuZn16Si4 is suitable for use in hot water, oil, fuel, and steam environments below 250°C.
Manufacturing Process
Casting
The production of ZCuZn16Si4 brass bushings begins with a casting process. Molten brass is poured into molds, allowing it to take the desired shape. This initial stage ensures that the bushing has the required dimensions and structural integrity.
Machining
Following casting, the bushings undergo precision machining. This step fine-tunes the dimensions and surface finish, ensuring a perfect fit and smooth operation within the machinery.
Surface Treatment
To enhance corrosion resistance and reduce friction, ZCuZn16Si4 bushings often undergo surface treatments such as plating or coating. This additional layer adds to their longevity and performance.
Applications
- Automotive Industry
In the automotive sector, ZCuZn16Si4 brass bushings find application in engines, transmissions, and suspension systems. They play a crucial role in reducing friction and ensuring the longevity of critical components. - Aerospace Industry
Aerospace engineers rely on ZCuZn16Si4 brass bushings for their exceptional performance in aircraft landing gear, control systems, and engine components. The reliability of these bushings is vital for passenger safety. - Construction and Engineering
In construction and engineering machinery, ZCuZn16Si4 brass bushings are used in excavators, cranes, and other heavy equipment. Their robustness ensures that these machines can endure tough conditions on job sites. - Marine Industry
In marine applications, where corrosion is a constant threat, ZCuZn16Si4 brass bushings thrive. They are essential in ship propellers, steering systems, and winches, where durability in harsh environments is non-negotiable.
Chemical Composition
The chemical composition of ZCuZn16Si4 casting brass is defined as follows:
Tin (Sn): ≤ 0.3% (impurities)
Zinc (Zn): ≤ 16% (impurities)
Lead (Pb): ≤ 0.5% (impurities)
Aluminum (Al): ≤ 0.1% (impurities)
Iron (Fe): ≤ 0.6% (impurities)
Manganese (Mn): ≤ 0.5% (impurities)
Silicon (Si): 2.5% to 4.5%
Antimony (Sb): ≤ 0.1% (impurities)
Note: Total impurities should be ≤ 2.0%.
ZCuZn16Si4 Casting Brass Bushing
| Si(%) | Zn(%) | Cu(%) | Tensile stress (Mpa) | Elongation (%) |
|---|---|---|---|---|
| 2.5-4.5 | ≧14.5 | 79.0-81.0 | ≧345 | ≧15 |
Relate Steel Type
| Steel Type | Standard | Country Code | Si(%) | Al(%) | Mn(%) | Pb(%) | Fe(%) | Ni(%) | Zn(%) | Cu(%) |
|---|---|---|---|---|---|---|---|---|---|---|
SZBC3 |
10981 | CNS | 3.2-4.2 | 13.0-15.0 | 80.0-84.0 | |||||
ZCuZn16Si4 |
1176 | GB | 2.5-4.5 | ≧14.5 | 79.0-81.0 | |||||
SZBC3 |
H5112 | JIS | 3.2-4.2 | ≦0.3 | ≦0.2 | ≦0.2 | ≦0.3 | 13.0-15.0 | 80.0-84.0 | |
SZBC1 |
10981 | CNS | 3.5-4.5 | 9.0-11.0 | 84.0-88.0 | |||||
SZBC1 |
H5112 | JIS | 3.5-4.5 | ≦0.5 | ≦1.0 | 9.0-11.0 | 84.0-88.0 | |||
C87400 |
B584 | ASTM | 2.5-4.0 | ≦0.8 | ≦1.0 | 12.0-16.0 | ≧79.0 | |||
G-CuZn15Si4 |
1709 | DIN | 3.8-5.0 | ≦0.1 | ≦0.2 | ≦0.5 | ≦0.6 | ≦1.0 | ≧9.3 | 78.0-83.0 |
Mechanical Properties
ZCuZn16Si4 casting brass bushings exhibit the following mechanical properties:
Tensile Strength (σb): ≥ 345 MPa
Elongation (δ5): ≥ 15%
Hardness: ≥ 885 HB
Heat Treatment Specifications
To optimize the properties of ZCuZn16Si4 Casting Brass Bushing, specific heat treatment processes are recommended:
Heating Temperature: 1100°C to 1180°C
Casting Temperature: 980°C to 1060°C
Casting Method
ZCuZn16Si4 casting brass is typically produced using sand casting techniques, ensuring that the material’s properties are maintained during the casting process.
CuZn16Si4-C (CC761S) Casting: Applications and Designations
In the European standard EN1982, you may come across designations like CuZn16Si4-C (CC761S) or CuZn16Si4-B (CB761S). These designations have specific meanings:
CuZn16Si4-B (CB761S): The “-B” suffix indicates that the material is in the form of ingots. Ingots of this alloy start with the prefix “CB.”
CuZn16Si4-C (CC761S): The “-C” suffix indicates that the material is in the form of castings. Castings of this alloy start with the prefix “CC.”
Conclusion
ZCuZn16Si4 casting brass bushings, known for their exceptional corrosion resistance and mechanical strength, find application in demanding environments such as marine, high-pressure, and high-temperature settings. Understanding its chemical composition, mechanical properties, and casting methods is crucial for utilizing this alloy effectively in various industrial applications. Whether you’re in need of reliable marine components or high-pressure fittings, ZCuZn16Si4 casting brass can deliver the durability and performance you require.
