PB102 Phosphor Bronze

Product Descriptions

PB102 copper alloy is renowned for its exceptional strength, elasticity, and wear resistance, coupled with outstanding corrosion resistance and excellent welding and brazing capabilities. Additionally, it boasts high electrical conductivity, low heat generation during operation, and reliable safety performance, along with superior fatigue resistance. Depending on the source, PB102 copper alloy may be categorized as phosphor bronze or tin bronze. This versatile material is widely utilized in a variety of applications, including mold steel, tungsten steel, alloy steel, cold and hot rolled plates, high-speed steel, tool steel, stainless steel, aluminum alloy, and magnesium alloy, making it a critical component across multiple industries.

 

Chemical composition of PB102 phosphorus bronze

Copper (Cu): 90-95% (primary base metal)

Tin (Sn): 4.50-6.00%(adds strength and corrosion resistance)

Phosphorus (P): 0.02~0.40% (improves wear resistance and deoxidizes the alloy)

Zinc Zn: ≤ 0.30%

Iron Fe: ≤ 0.10%

Lead Pb: ≤ 0.02%

 

Mechanical Properties

Material	0.2 % Proof Stress (N/mm2)	Tensile Strength (N/mm2)	Elongation 50mm (%)	Hardness (HV)
Pb102	520	570	4	180
The table shows material as cold rolled, extra hard

 

Properties of PB102 Phosphor Bronze:

• High Strength and Hardness

PB102 exhibits excellent mechanical strength and hardness, making it suitable for applications requiring durability and resistance to deformation.

• Good Corrosion Resistance

The alloy is highly resistant to corrosion, particularly in harsh environments, including exposure to moisture, chemicals, and saltwater.

• Excellent Wear Resistance

PB102 phosphor bronze has superior wear resistance, making it ideal for components subjected to friction or repetitive motion.

• Good Electrical Conductivity

While not as conductive as pure copper, PB102 still offers good electrical conductivity, making it suitable for electrical and electronic applications.

• Spring Properties

The alloy has excellent spring characteristics, including high elasticity and fatigue resistance, which are essential for springs, connectors, and other elastic components.

• Machinability

PB102 is relatively easy to machine, allowing for the production of precise and complex components.

 

Typical Applications of PB102 Phosphor Bronze

• Electrical Connectors and Contacts

Due to its good conductivity and corrosion resistance, PB102 is widely used in electrical connectors, switches, and relay contacts.

• Springs and Bearings

Its excellent spring properties and wear resistance make it ideal for springs, bushings, and bearings in mechanical systems.

• Marine Applications

The alloy's resistance to corrosion in saltwater environments makes it suitable for marine hardware, such as ship propellers, pumps, and valves.

• Industrial Machinery

PB102 is used in gears, washers, and other components that require high strength and durability.

• Musical Instruments

The alloy is used in strings, springs, and other parts of musical instruments due to its acoustic properties and resistance to fatigue.

 

Advantages Over Other Materials

Compared to brass and other copper alloys, PB102 phosphor bronze offers better strength, wear resistance, and fatigue resistance.

It outperforms standard aluminum or steel in applications requiring corrosion resistance and electrical conductivity.

 

Test Equipment

 

Size Available

Rod range: diameter 6-500mm, length 0.5-30m;

Plate range: thickness 0.5-80mm, length 1-6 meters, width 0.5-3m;

Pipe range: outer diameter 6-530mm, wall thickness 0.5-50mm, length 1-12m.

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