C90800 Tin Bronze Bushings
C90800 Tin Bronze Bushings
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 the Versatility of C90800 Tin Bronze Bushings
Key Properties
C90800 tin bronze bushings are crafted from an alloy containing 11-13% tin, with additional elements like lead, zinc, and iron. This amalgamation results in bushings endowed with exceptional mechanical properties, wear resistance, and corrosion resistance. Additionally, they boast commendable machinability, brazing, and welding capabilities.
Applications of C90800 Tin Bronze Bushings
These bushings find wide applications in environments characterized by low speeds and heavy loads, such as gearboxes, pump impellers, valve bodies, and various bridge components. Their versatility extends to steam fittings and piston rings as well.
C90800 Tin Bronze Bushings’Advantages
Utilizing C90800 tin bronze bushings offers numerous advantages over alternative materials:
- High Strength and Wear Resistance: With tensile strength reaching 310 MPa, yield strength at 152 MPa, and a hardness of approximately 95 BHN, these bushings exhibit remarkable resistance to wear and deformation under strenuous conditions.
- Excellent Corrosion Resistance: The tin bronze composition affords superior resistance to corrosion, especially in aggressive environments like seawater, making them ideal for marine applications and those exposed to corrosive conditions.
- Self-Lubricating Properties: C90800 tin bronze inherently possesses self-lubricating qualities, negating the necessity for external lubrication. This characteristic ensures hassle-free operation and reduces maintenance requirements.
- Machinability and Manufacturability: Easily machinable, C90800 tin bronze can be fashioned into various shapes and forms, catering to diverse industrial needs. Its consistent material composition and properties ensure adherence to industry standards.
- Temperature Resistance: Capable of withstanding temperatures of up to 400°C, these bushings remain stable and reliable even in environments with elevated operating temperatures.
In conclusion, the amalgamation of high strength, wear resistance, corrosion resistance, self-lubrication, machinability, and temperature resistance positions C90800 tin bronze as the premier choice for industrial bushings and bearings, particularly in environments characterized by heavy loads, low speeds, and harsh conditions.
Mechanical Properties
| Tensile Strength, min | Yield Strength, at 0.5% Extension Under Load, min | Elongation, in 2 in. or 50 mm min | Brinell Hardness (500 kg load) | Remarks | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | typical BHN | |
| 45 | 310 | 22 | 152 | 13 | 95 | |
Similar or Equivalent Specification
| CDA | ASTM | SAE | AMS | Federal | Other | |
|---|---|---|---|---|---|---|
| C90800 | B427 |
Chemical Composition
| Cu%1 | Pb% | Sn% | Zn% | Fe% | P% | Ni%2 | Al% | S% | Sb% | Si% |
|---|---|---|---|---|---|---|---|---|---|---|
| 85.00-89.00 | 0.25 | 11.00-13.00 | 0.25 | 0.15 | 0.30 | 0.50 | 0.005 | 0.05 | 0.20 | 0.005 |
¹In determining Cu min., Cu may be calculated as Cu + Ni. ²Ni value includes Co.
Note: Cu + Sum of Named Elements, 99.4% min. Single values represent maximums.
