C92700 is a copper alloy belonging to the leaded tin bronze family. It's known for its good castability,
wear resistance, and excellent machinability, making it a popular choice for various industrial
applications. However, similar to other leaded alloys, its use might be limited due to environmental and
health concerns.
Table: Key Properties of C92700
| Property |
Description |
| Chemical Composition |
- Primarily Copper (Cu): 84-89% <br> - Tin (Sn): 4.5-6.0% <br> - Lead (Pb): 0.3-1.0%
<br> - Other (Fe, Zn, etc.): Trace amounts
|
| Mechanical Properties |
- Good strength and wear resistance <br> - Excellent machinability due to lead content
<br> - Fair corrosion resistance
|
| Common Brands (By Country) |
- Europe: CuSn4Pb1 [Europe] <br> - US: Leaded Tin Bronze |
Common Questions and Answers:
What are the typical applications of C92700?
C92700 finds use in various industries due to its good castability and machinability:
Gears: Its strength and wear resistance make it suitable for gears, especially for
lower-load applications.
Bearings and bushings: C92700 can be used for bearings and bushings in applications with
moderate loads.
Wear plates and liners: Industrial machinery can benefit from C92700's wear resistance
for wear plates and liners.
How does C92700 compare to other leaded tin bronzes?
The lead content in C92700 is lower compared to some other leaded tin bronzes (e.g., C93200. C93400). This
can offer a slight advantage in terms of regulations and health concerns. However, the overall properties
remain similar, with good machinability and wear resistance being the key strengths.
Are there lead-free alternatives to C92700?
Lead-free alternatives can be considered depending on the specific application requirements. Here are some
options:
C93700: A high-tin bronze with good machinability and wear resistance for bearings and
bushings, but no lead.
Aluminum bronzes (e.g., C95400): Offer good strength, wear resistance, and machinability
without lead.
Important Note: Regulations on lead usage can influence the availability of C92700. Lead
content should also be a factor when choosing a material. Always consult with a material engineer or
supplier to identify the most suitable copper alloy for your specific application considering factors like
strength, wear resistance, corrosion resistance, and regulatory compliance.
