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Enhance Your Machinery with Our Phosphor Bronze Bushings! Phosphor bronze graphite bushings are a composite material that combines the excellent mechanical properties of phosphor bronze with the self-lubricating characteristics of graphite. Phosphor bronze itself is a copper alloy containing tin and phosphorus, known for its good conductivity, fatigue resistance, and wear resistance. It is commonly used to manufacture wear-resistant parts and flexible components, such as computer connectors, mobile phone connectors, and springs for electronics and electrical applications.

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Graphite, serving as a lubricant, has self-lubricating properties that can reduce friction and wear, thereby enhancing the efficiency of mechanical operations. By embedding graphite within the phosphor bronze matrix, bushings that are both wear-resistant and self-lubricating can be produced. These products are widely used in applications that require reduced maintenance and enhanced reliability.

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Features of phosphor bronze graphite bushings include

High Load Capacity: Due to the high strength and hardness of phosphor bronze, these bushings can withstand substantial loads.

Self-Lubrication: The addition of graphite provides self-lubricating properties, reducing dependency on external lubricants.

Wear Resistance: The combination of phosphor bronze and graphite offers excellent wear resistance.

Corrosion Resistance: Phosphor bronze has good corrosion resistance, making it suitable for various environments.

Thermal Stability: Phosphor bronze maintains stable performance within a certain temperature range.

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Phosphor bronze graphite bushings can be customized according to specific application requirements to meet different dimensions, shapes, and performance needs. For example, they can be used to manufacture self-lubricating liners and sliding bearings.

ASTM
ASTM B505 is a standard for continuous cast products made of copper alloys. This standard specifies the requirements for continuous cast rods, tubes, and profiles made from copper alloys.
EN1982
EN1982 is a European standard that relates to the chemical composition of copper and copper alloys. This standard likely includes the chemical composition requirements for phosphor bronze.

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Phosphor bronze, as a type of copper alloy, may have different designations in various countries and regions according to international standards.

MATERIAL LIST
Material description Analysis  Physical properties Application
   DIN
Alloy No.		 ASTM
Alloy No.		 Scandinavian
Alloy No.		  British
Alloy No.		   Chemical
Composition		   Yield
Strength		 Tensile
Strength		 Elongation Emodule Hardness  
         % N/mm² N/mm² % x 103 HB  

CuSn7ZnPb1

CuSn7ZnPb2

CuSn7ZnPb3

 C93200 JM1  1400
LG2		   Cu 81-85
   Sn 5-6
   Zn 3-5
   Pb 5-7
  Ni 2 max
Sb 3,3 max

 120

130

120

 240

270

270

 15
13
16

106

106

106

 65
75
70		 Medium-hard bearing alloy
Good anti-friction properties
Seawater resistant
Applicable for light edge loads

CuSn12Pb1

CuSn12Pb₂
CuSn12Pb₃

 C92500 JM3  1400
PB2		   Cu 84-88
  Sn 11-13
   Pb 1-2
  Ni 2 max
Sb 0,2 max
  P 0,2 max

 140

150

140

 260

280

280

 10
5
7

112

112

112

 80
90
85		 Material for high loads
Seawater resistant

CuAl10Ni₁

CuAl10Ni2
CuAl10Ni3

 C95500 JM7  1400
AB2		 Cu 75 min
Al 8,5-11
Ni 2-8,5
Fe 3,5-5,5
Mn 3,3 max

 270

300

300

 600

700

800

 12
13
13

122

122

122

140

160

160

 Hard Ni-Al bronze
Very high strength
Excellent wear resistance
Corrosion-resistant
Seawater resistant
High-temperature strength
CuZn25Al51
CuZn25Al52
CuZn25Al53		 C86300 JM18     Cu 60-67
   Al 3-7
  Fe 1,5-4
  Mn 2,5-5
Zn balance
  Ni 3 max

 450

480

480

 750

750

750

  88

115

115

115

200

220

220

 Water resistant
High-strength bearing alloy
High fatigue resistance
Not applicable for seawater
applications
BEARING  PROPERTIES*
  Bronze
Material		 Solid
Lubricant		 p statc
(N/mm²		 p dynamic
(N/mm		 Friction
dry		 Friction
wet		 v[m/s]max. max P.
  value
N/mm²x
  m/s		 Temp.℃
max.		 Shaft Hardness
HB[min]		 Shaft Finish
R。(pm)
CuSn⁷ 7nPh SL 4
SL 1		 80

80

 40
30		 0.11-0.13

0.12-0.14

 0.07 -0.12

Not available

 0.4

0.5

 1.2

1.0

 80
250		 180 0.2-0.8
CuSn12PB SL 4
SL 1		 100

100

 70
25		 0.11-0.13

0.12-0.14

 0.07 -0.12

Not available

 0.4
0.15		 2.0

1.6

 80
250		 180 0.2 -0.8
CuAl10Ni SL 4

SL 1

 150

150

 90
80		 0.13-0.15

0.14-0.16

 0.07 -0.12

Not available

 0.4

0.4

 1.5

1.5

 80
350		 300 0.2-08
CuZn25Al5 SL 4

SL 1

 150

150

 100

90

 0.13-0.15

0.14-0.16

 0.07 -0.12

Not available

 0.4

0.15

 1.5

1.0

 80
300		 300 0.2-0.8

PB2 Phosphor Bronze Bushing:

  • Under the EN1982 standard, phosphor bronze bushings typically refer to those made from PB2 phosphor bronze, known for its excellent mechanical properties and reliability.

Material Composition:

  • Phosphor bronze bushings contain a small amount of phosphorus, which enhances wear resistance and reduces friction. This material is typically composed of copper (85-95%), tin (4-10%), and a small amount of phosphorus.

Performance Features:

  • Compared to PB1, the PB2 phosphor bronze alloy has a higher tin content, thus offering better wear resistance. It provides high strength and good hardness.

BS1400 PB2:

  • BS1400 PB2 is a British standard that also specifies the composition of phosphor bronze, officially referred to as BS1400 PB2 CuSn11P. This material is similar to that specified under the EN1982 standard for phosphor bronze bushings.

Applications:

  • Phosphor bronze bushings are favored for their strength, durability, and wear resistance, making them suitable for applications requiring reduced maintenance and enhanced reliability.

Other Characteristics:

  • Phosphor bronze bushings also exhibit self-lubricating properties, allowing them to operate without external lubricants, making them extremely useful in industrial settings.

Supplier Information:

  • Suppliers of phosphor bronze bushings offer products characterized by strength, durability, and wear resistance, making them preferred materials for engineering applications.

When selecting phosphor bronze bushings, it is essential to ensure that the materials meet the EN1982 standard or other relevant standards to ensure they meet the performance requirements of specific applications. Additionally, understanding the specific composition and performance characteristics of the materials is crucial to ensure their reliability under specific operating conditions.

In the United States, under ASTM standards, phosphor bronze generally refers to copper alloys containing tin (Sn) and phosphorus (P), known for their excellent mechanical properties and corrosion resistance. According to search results, here are some phosphor bronze grades related to ASTM standards:

C51000: This is a phosphor bronze grade under ASTM standards, commonly referred to as phosphor bronze, noted for its good elasticity and wear resistance, often used in manufacturing spring elements and wear-resistant parts.

C54400: According to search results, C54400 is another grade of phosphor bronze, formerly known as B103, meeting the ASTM B103/B103M-2019 standard for phosphor bronze plate, sheet, strip, and rolled bar.

C50500: Search results indicate that C50500 is a grade of phosphor bronze with excellent electrical conductivity and corrosion resistance, primarily used as electrical contacts.

ASTM B159/159M: According to search results, this is a technical specification for phosphor bronze wire, with C51000 being one of the grades that meet this standard.

ASTM B505: Although search results do not directly mention the association of ASTM B505 with phosphor bronze, ASTM B505 is a standard for copper alloy cast products, which may include various copper alloys, including phosphor bronze.

ASTM B103/B103M: According to search results, this standard pertains to phosphor bronze plates, sheets, strips, and rolled bars, with C54400 being one of the grades that meet this standard.

These phosphor bronze alloys, with their different chemical compositions and performance characteristics, can meet the needs of various application scenarios. When selecting phosphor bronze materials, it is essential to choose the appropriate grade based on specific application requirements and working conditions, and refer to the corresponding ASTM standards to ensure the materials meet performance requirements.

Alloy Standards EN 1982: Compare the properties of all alloy grades /numbers, EN 1982: 2008 is a European standard that covers copper and copper alloy ingots and castings. The list you provided includes various grades of copper alloys, each representing different compositions and properties suitable for diverse applications.

Here is the translation of the chart into English, including the column headings which represent various national standards for the alloys:

China USA France， Germany， UK Japan  
QSN4-3 C51100 CuSn4 (CW459K) C5101  
QSN5-0.2 C51000 CuSn5Pb1 (CW458K) C5102  
QSN5-0.3 C51000 CuSn5 (CW451K) C5102  
QSN4-0.3 C51000 CuSn4 (CW450K) C5111  
QSN6-0.05 C51900 CuSn6 (CW452K) C5191  
QSN6-0.1   CuSn6 (CW452K) C5191  
QSN6-0.4   CuSn6 (CW452K) C5191  
QSN7-0.2   CuSn8 (CW453K) C5210  
QSN8-0.3 C52100 CuSn8 (CW453K) C5212  
QSN4-4-4 C54400 CuSn4Pb4Zn4 (CW456K) C5441  

Each row lists the designation of a particular copper alloy (such as tin bronze, phosphor bronze, etc.) according to the standards of the respective countries: China, the United States, France, Germany, and Japan.

Phosphor bronze is a versatile and widely used material in the manufacturing of bushings and bearings due to its unique combination of properties. Here’s a summary of the information provided by the search results regarding the Phosphor Bronze grades PB1, PB2, and SAE660:

Phosphor Bronze PB1

  • Standard: British Standard BS1400: PB1
  • Composition: Mostly copper with 10 – 11.5% tin and a small amount of phosphorous
  • Properties: Excellent corrosion resistance due to the tin content, and improved wear resistance due to the phosphorous
  • Applications: Suitable for various applications where these properties are beneficial

Phosphor Bronze PB2

  • Standard: British Standard BS1400: PB2
  • Composition: Higher tin content than PB1
  • Properties: Benefits from excellent wear resistance and good machinability. The increased tin content enhances its wear resistance and offers high strength
  • Applications: Industrial applications where durability and efficiency are crucial

SAE660 Bronze

  • Composition: Not explicitly detailed in the snippets, but SAE660 is typically a high-strength bronze alloy
  • Properties: Likely to have good strength and wear resistance, similar to the other phosphor bronze grades
  • Applications: It is used in applications where high strength and resistance to wear are required

General Properties of Phosphor Bronze

  • Composition: Typically consists of copper (85–95%), tin (4–10%), and a small percentage of phosphorus
  • Strength: Phosphor bronze has an impressive yield strength, comparable to some aluminum alloys and superior to other bronzes, largely due to its high tin content
  • Wear Resistance: The increased tin content in certain grades, like PB2, provides excellent wear resistance
  • Machinability: Good machinability is a characteristic that makes phosphor bronze suitable for manufacturing complex parts

Industrial Applications

  • Phosphor bronze bushings and bearings are used in industrial applications where efficiency and durability are paramount. They offer a combination of strength, wear resistance, and corrosion resistance, making them ideal for long-lasting performance in demanding environments.

Additional Information

  • Phosphor bronze is one of the oldest metal alloys, known for its versatility and the ability to offer very good mechanical properties and corrosion resistance.
  • It is commonly supplied to British Standard BS1400 in grades PB1, PB2, and PB102, with good strength and shock resistance characteristics.

When choosing the right grade of phosphor bronze for bushings or bearings, it’s important to consider the specific requirements of the application, including the need for corrosion resistance, wear resistance, and the operating conditions. Each grade offers a slightly different balance of properties to suit various industrial needs.

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