CuSn6Pb6Zn3, also known as Qsn6-6-3 bronze, is a type of leaded tin bronze alloy commonly used in the manufacturing of bushings, bearings, and other components that require good wear resistance, low friction, and high load-bearing capacity. Here's a breakdown of its composition and properties:

Composition:
Copper (Cu): The base metal, providing good thermal and electrical conductivity, as well as corrosion resistance.

Tin (Sn): Typically around 6%, tin improves the alloy's strength, hardness, and wear resistance.

Lead (Pb): Around 6%, lead enhances machinability and provides self-lubricating properties, which are beneficial for reducing friction in bushings and bearings.

Zinc (Zn): Approximately 3%, zinc improves the alloy's fluidity during casting and contributes to its overall strength.

Key Properties:
Wear Resistance: The tin content provides excellent wear resistance, making it suitable for high-load applications.

Low Friction: The lead content acts as a solid lubricant, reducing friction and preventing galling.

Machinability: The lead and zinc content make the alloy easy to machine, which is advantageous for manufacturing precision components.

Corrosion Resistance: The copper base provides good resistance to corrosion, especially in non-acidic environments.

Load-Bearing Capacity: The alloy can withstand high loads, making it ideal for bushings and bearings in heavy machinery.

Applications:
Bushings and Bearings: Commonly used in automotive, industrial, and marine applications due to its self-lubricating properties and wear resistance.

Gears and Sleeves: Suitable for components that require low friction and high durability.

Valve Components: Used in valves and pumps where corrosion resistance and wear resistance are critical.

Advantages:
Self-Lubricating: Reduces the need for external lubrication, lowering maintenance requirements.

Durability: Long service life even under high-stress conditions.

Versatility: Can be used in a wide range of temperatures and environments.

Disadvantages:
Lead Content: The presence of lead can be a concern in certain applications, especially where environmental and health regulations are strict.

Cost: Generally more expensive than some other bronze alloys due to the tin content.

Overall, CuSn6Pb6Zn3 bronze is a reliable material for applications requiring a combination of strength, wear resistance, and low friction.

CuSn6Pb6Zn3 (also known as QSn6-6-3) Bronze Bushings are a type of bearing components made from a specific alloy composition. This alloy contains copper (Cu) as the base metal, with tin (Sn), lead (Pb), and zinc (Zn) as alloying elements in specific percentages. The CuSn6Pb6Zn3 designation indicates the approximate weight percentages of these elements in the alloy: 6% tin, 6% lead, and 3% zinc, with the remainder being copper.

Bronze bushings made from CuSn6Pb6Zn3 alloy are known for their good wear resistance, corrosion resistance, and machinability. They are commonly used in applications where high sliding speeds, heavy loads, or poor lubrication conditions are present. The addition of lead in the alloy helps to improve the machinability and reduce friction, while the tin and zinc contribute to the overall strength and corrosion resistance of the material.

When selecting CuSn6Pb6Zn3 bronze bushings for a specific application, it is important to consider factors such as the operating temperature, load conditions, sliding speed, and lubrication regime. Proper installation and maintenance of the bushings are also crucial to ensure optimal performance and long service life.

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CuSn6Pb6Zn3(Qsn6-6-3) Bronze Bushings & Bearings

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CuSn6Pb6Zn3(Qsn6-6-3) Bronze Bushings is based on the copper alloy. It offers technically and economically favorable bearings solutions. It is of high load capability, low weight and good corrosion resistance. CuSn6Pb6Zn3(Qsn6-6-3) Bronze Bushings can offer different types of bronze alloys according to the required life time, service etc. The tolerance is much tighter than wrapped bronze bushes. This kind of products are widely used in machine-tool, agricultural machinery, crane electromotor, spring pin, steering shaft and transmission, etc. We can use different copper alloy material as per customer's requirements.

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material
CuSn6Pb6Zn3(Qsn6-6-3)

Main application areas
The products are used in agricultural machinery, crane, electric motor, spring bolt bearing, steering shaft bearing and transmission device, etc.

Applications: Industrial - Selecting Bronze Bearing Materials

In addition to the standard products shown in the catalog, non-standard bronze bushing products can be offered or ordered on customer request.

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