Bearing, Metal Bronze – Bronze Alloys, copper bronze alloy

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Bronze & Bronze Alloys, copper bronze alloy

Bronze alloys are copper-based alloys primarily composed of tin, renowned for their outstanding mechanical properties, corrosion resistance, and excellent castability. Widely utilized in industry, bronze alloys are employed in manufacturing various components including sheets, plates, sliding bearings, bushings, flanges, and washers.

Providing Brass, Bronze, and Specialty Copper Alloys, Copper Alloy Machining Services

Grades of Bronze Alloys, copper bronze alloy

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C862 Alloy: Typically possessing balanced physical and mechanical properties, potentially suitable for general industrial purposes, particularly in environments requiring certain strength and corrosion resistance.

C863 Alloy: This alloy may contain higher tin content, offering improved strength and hardness, suitable for applications requiring wear resistance and high load-carrying capacity.

C932 Alloy: Possibly a leaded bronze alloy, the addition of lead can enhance the alloy’s machinability and ease of mechanical processing, suitable for parts requiring precision machining.

C954 Alloy: This alloy may contain other alloying elements such as aluminum or nickel to enhance its corrosion resistance and strength, suitable for applications in harsh environments such as marine or chemical industries.

Solid lubricants are suitable for a broad spectrum of operating temperatures. The choice of lubricant depends on the intended use, operating temperatures, as well as the size and configuration of the bearing.

bronze bush CuZn25Al6Mn4 plain bearing copper base self-lubricating sleeve high strength brass inlaid graphite sleeve brass bearings COPPER ALLOYS Large Size Centrifugal Casting Bronze Bearing Parts large-sized centrifugal bronze bushings
copper-nickel alloys like CuAl11Ni Centrifugal Casting Precision Bronze Bearing Bushings centrifugal casting techniques, bushes, rings

Key characteristics of bronze alloys include:

Elasticity and Fatigue Resistance: Bronze alloys exhibit good elasticity and fatigue resistance, making them ideal materials for components such as bearings and bushings subjected to repetitive loads.

Corrosion Resistance: Bronze alloys demonstrate excellent resistance to seawater and various chemical substances, making them commonly used in ships, marine engineering, and chemical processing equipment.

Wear Resistance: Some bronze alloys are highly suitable for manufacturing sliding bearings and other friction components due to their hardness and wear resistance.

Castability: Bronze alloys exhibit good castability, enabling the production of complex-shaped parts through various casting processes.

Elasticity and Fatigue Resistance: Bronze alloys exhibit good elasticity and fatigue resistance, making them ideal materials for components such as bearings and bushings subjected to repetitive loads.

Corrosion Resistance: Bronze alloys demonstrate excellent resistance to seawater and various chemical substances, making them commonly used in ships, marine engineering, and chemical processing equipment.

Wear Resistance: Some bronze alloys are highly suitable for manufacturing sliding bearings and other friction components due to their hardness and wear resistance.

Castability: Bronze alloys exhibit good castability, enabling the production of complex-shaped parts through various casting processes.

Cast Bronze Alloys

Cast bronze alloys, known for their versatility, have been utilized for centuries across a wide range of bearing applications, surpassing other bearing materials in adaptability. By adding different elements to copper, the properties of bronze can be tailored to meet the specific needs of virtually any application, based on the required physical, mechanical, and metallurgical characteristics.

There is an extensive variety of bronze alloys available for use in industrial and structural applications. Aluminum bronze and manganese bronze are typically favored for applications involving high loads, due to their exceptional toughness and shock resistance.

The below chart displays high-strength bronze alloys commonly used in industrial and structural applications. Additional alloys are available to meet specific needs.

Alloy No. Description ASTM Specification Maximum Recommended Bearing Load Maximum Recommended PV
614 Aluminum Bronze B169-C61400 5000 psi / 35 N/mm² 60,000 psi-ft/min / 130 N/mm²-m/min
862 Manganese Bronze B584-C86200 6000 psi / 41 N/mm² 72,000 psi-ft/min / 150 N/mm²-m/min
863 Manganese Bronze B22-C86300 8000 psi / 55 N/mm² 80,000 psi-ft/min / 170 N/mm²-m/min
865 Manganese Bronze B584-C86500 4000 psi / 27.5 N/mm² 48,000 psi-ft/min / 100 N/mm²-m/min
905 Tin Bronze B22-C90500 2000 psi / 14 N/mm² 30,000 psi-ft/min / 65 N/mm²-m/min
911 Tin Bronze B22-C91100 2500 psi / 17.5 N/mm² 36,000 psi-ft/min / 75 N/mm²-m/min
924 Leaded Tin Bronze B22-C90500M 2000 psi / 14 N/mm² 30,000 psi-ft/min / 65 N/mm²-m/min
932 High Leaded Tin Bronze B584-C93200 1500 psi / 10 N/mm² 24,000 psi-ft/min / 50 N/mm²-m/min
937 High Leaded Tin Bronze B22-C93700 1000 psi / 7 N/mm² 20,000 psi-ft/min / 45 N/mm²-m/min
954 Aluminum Bronze B148-C95400 4000 psi / 27.5 N/mm² 48,000 psi-ft/min / 100 N/mm²-m/min
955 Nickel Aluminum Bronze B148-C95500 6000 psi / 41 N/mm² 72,000 psi-ft/min / 150 N/mm²-m/min
958 Alpha Nickel Aluminum Bronze B148-C95800 5000 psi / 35 N/mm² 60,000 psi-ft/min / 130 N/mm²-m/min

Bearing Types:

  • Sleeve Bearings

  • Flange Bearings

  • Thrust Bearings

  • Spherical Plain Bearings

  • Expansion Bearing Plates

  • Radial Bearing Plates

  • Spherical Bearing Plates

Tolerances

For most self-lubricating bearings, machining tolerances range from ±0.001 to ±0.002 inches (±0.025 to ±0.050 mm) for inside diameters and ±0.0005 to ±0.001 inches (±0.012 to ±0.025 mm) for outside diameters. Surface finishes typically do not exceed 63 microinches (1.6 micrometers).

When selecting bronze alloys, the following factors need to be considered:

Application Environment: Different environmental conditions (such as temperature, humidity, chemical exposure) will influence the choice of bronze alloy.

Load Requirements: Select alloys with appropriate strength and hardness based on the type and magnitude of loads the components will endure.

Processing Requirements: Consider the alloy’s processing properties, including casting, machining, and heat treatment capabilities.

Cost-effectiveness: The cost of the alloy is related to its performance and processing difficulty, requiring a selection based on budget and performance requirements.

Each bronze alloy has its unique properties suitable for specific industrial applications. When selecting bronze alloys, consulting with material experts or suppliers is recommended to ensure the chosen material meets the performance requirements of the specific application.

Self-lubricating bronze bearing alloys are produced in strict adherence to ASTM and ISO material specifications. Various casting methods, including centrifugal, continuous, sand, and forged, are offered to accommodate different sizes and shapes as needed. Physical and chemical test reports can be provided upon request.

Each alloy possesses unique properties and applications. Here’s a brief overview of bronze alloys:

Commercial Bronze (C22000): Often referred to as commercial bronze or common bronze, contains small amounts of tin and zinc, exhibiting good castability and mechanical properties.

Phosphor Bronze (C51000): A bronze alloy containing phosphorus, enhancing strength and wear resistance, commonly used in springs and high-load applications. C54400: A high-tin content phosphor bronze with increased strength and hardness.

Aluminum Bronze (C61400): A bronze alloy containing aluminum, with excellent corrosion resistance and high strength, suitable for marine applications and high-wear components.

C95400 and C95900: These alloys may contain varying amounts of aluminum and other alloying elements, used for specific corrosion-resistant and high-strength applications.

Nickel Aluminum Bronze (C63000, C63020, C63200): These alloys contain nickel and aluminum, providing excellent strength, corrosion resistance, and seawater resistance, commonly used in marine engineering and chemical equipment.

Nickel Aluminum Bronze (C95500): Possibly a specific composition of nickel aluminum bronze used in applications requiring high corrosion resistance and strength.

Aluminum Silicon Bronze (C64200): Contains aluminum and silicon, exhibiting good castability and mechanical properties.

Silicon Bronze (C65100 – low silicon bronze, C65500 – high silicon bronze): These alloys contain varying amounts of silicon, offering different performance characteristics, with high silicon bronze having better wear resistance.

Manganese Bronze (C67500 and C86300): Bronze alloys containing manganese, offering good strength and wear resistance, commonly used in ship propellers and underwater equipment.

Eco Bronze (C87850): Possibly a bronze alloy with special compositions aimed at reducing environmental impact.

Bismuth Tin Bronze (C89835): Contains bismuth and tin, potentially exhibiting unique mechanical properties and good castability.

Tin Bronze (C90300): A tin bronze alloy with high tin content, featuring good mechanical properties and corrosion resistance.

Leaded-Tin Bronze (C93200): A tin bronze containing lead, commonly used in bearing manufacturing due to its excellent lubrication and wear resistance.

Toughmet Nickel Bronze (C96900): A high-strength, high-hardness nickel bronze alloy, suitable for high-load and wear environments.

Each bronze alloy has specific applications, and selecting the appropriate alloy depends on factors such as final usage, working environment, mechanical performance requirements, and cost. Specific alloys may be required to meet performance requirements in certain applications. For further details on the performance and applications of each alloy, refer to relevant material standards or contact alloy manufacturers.

Your Content Goes Here

    MATERIALS   
  No. USA China ISO 427 Germany UK France Janpan
ASTM B105 GB/T 5231 DIN 17662 BS 2870 NFA51-108 JIS H3110
ASTM B584 GB/T 1176        
Tin Bronze 1   QSn4-4-2.5 CuSn4Pb4Zn3     CuSn4Zn4Pb C5441
2 C54400 QSn4-4-4 CuSn4Pb4Zn3     CuSn4Zn4Pb C5441
Aluminum Bronze 3 C61900 QAl9-4 CuAl10Fe3 CuAl10Fe3 CA103 CuAl7Fe2 C6161
4 C62300 QAl10-3-1.5 CuAl10Fe3 CuAl10Fe3Mn2 CA105   C6161
5 C63000 QAl10-4-4 CuAl9Fe4Ni4 CuAl10Ni5Fe4 CA105 CuAl10Ni5Fe4 C6301
6 C63280 QAl10-5-5 CuAl9Fe4Ni4 CuAl10Ni5Fe4 CA104 CuAl10Ni5Fe4 C6301
Tin Bronze 7 C83800 ZCuSn3Zn8Pb6Ni1   G-CuSn2ZnPb LG1 CuSn3Zn9Pb7 BC1
8 C83810 ZCuSn3Zn11Pb4   G-CuSn2ZnPb LG1 CuSn3Zn9Pb7 BC1
9 C83600 ZCuSn5Zn5Pb5 CuPb5Sn5Zn5 G-CuSn5ZnPb LG2 CuSn5Zn5Pb5 BC6
10 C90710 ZCuSn10P1 CuSn11P   PB1 CuSn12P PBC2
11 C92710 ZCuSn10Pb5 CuSn8Pb2 G-CuSn7ZnPb LB2 CuSn8 LBCLn2
12 C90500 ZCuSn10Zn2 CuSn10Zn2 G-CuSn10Zn G1 CuSn8 BC3
Leaded Tin Bronze 13 C93200 ZCuSn6Zn3Pb6          
14 C93700 ZCuPb10Sn10 CuPb10Sn10 G-CuPb10Sn LB2 CuSn10Pb10 LBC3C
15 C93800 ZCuPb15Sn8 CPb15Sn8 G-CuPb15Sn LB1   LBC4
16 C94300 ZCuPb20Sn5 CuPb20Sn5   LB5 CuPb20Sn5 LBC5
17 C94310 ZCuPb30          
Aluminum Bronze 18 C95700 ZCuAl8Mn13Fe3Ni2     CMA1   AlBC4
19 C95520 ZCuAl9Mn2         AlBC2
20 C95500 ZCuAl9Fe4Ni4Mn2 CuAl10Fe5Ni5 G-CuAl9Ni     AlBC3C
21 C95200 ZCuAl10Fe3 CuAl10Fe3 G-CuAl10Fe AB1   AlBC1
22 C95510 ZCuAl10Fe3Mn2   G-CuAl10Fe      
Brass 23 C85500 ZCuZn38   G-CuZn38Al DCB1 CuZn40 HBsC1
24 C86200 ZCuZn26Al4Fe3Mn3 GCuZn26Al4Fe3Mn3       HBsC3
25 C86300 ZCuZn25Al6Fe3Mn3 CuZn25Al6Fe3Mn3 G-CuZn25Al5 HTB3 CuZn23Al4 HBsC4C
26 C86500 ZCuZn35Al2Mn2Fe1 CuZn35AlFeMn G-CuZn35Al2 HTB1 CuZn30AlFeMn HBsC2
27 C86700 ZCuZn38Mn2Pb2 CuZn40Pb       HBsC1C
28 C86800 ZCuZn40MN3Fe1 CuZn35AlFeMn       HBsC2
29 C85400 ZCuZn33Pb2 CuZn33Pb2   SCB3   HBsC1
30 C85700 ZCuZn40Pb2   G-CuZn37Pb PCB1 CuZn40 HBsC1
31 C87400 ZCuZn16Si4   G-CuZn15Si4     SzBC3
 
 
 
 

Bearing bronze alloys are a group of bronze materials specifically designed for applications requiring low friction and high wear resistance, making them ideal for various types of bearings. Below is a summary of some commonly used bearing bronze alloys, their compositions, properties, and typical applications:

Common Bearing Bronze Alloys

  1. C93200 (SAE 660)

    • Chemical Composition: Cu 83%, Sn 7%, Pb 7%, Zn 3%
    • Mechanical Properties: Tensile Strength: 35 ksi, Yield Strength: 20 ksi
    • Equivalent Specification: ASTM B505, ASTM B271
    • Typical Uses: General purpose bearings, bushings, washers
    • Characteristics: Good load capacity, excellent machinability, reasonable corrosion resistance.

  2. C93600 (High-Lead Tin Bronze)

    • Chemical Composition: Cu 81%, Sn 6%, Pb 11%, Zn 2%
    • Mechanical Properties: Tensile Strength: 25 ksi, Yield Strength: 15 ksi
    • Equivalent Specification: ASTM B505
    • Typical Uses: Slow speed heavy load bearings, high impact applications
    • Characteristics: High ductility, good conformability, low speed suitability.

  3. C95400 (Aluminum Bronze)

    • Chemical Composition: Cu 83%, Al 11%, Fe 3%, Ni 3%
    • Mechanical Properties: Tensile Strength: 85 ksi, Yield Strength: 32 ksi
    • Equivalent Specification: ASTM B505, ASTM B271
    • Typical Uses: High load bearings, gear components, undercarriage parts
    • Characteristics: High strength, excellent wear and corrosion resistance.

  4. C86300 (Manganese Bronze)

    • Chemical Composition: Cu 63%, Mn 3%, Al 6%, Fe 3%
    • Mechanical Properties: Tensile Strength: 110 ksi, Yield Strength: 62 ksi
    • Equivalent Specification: ASTM B505, ASTM B271
    • Typical Uses: Load bearings, construction equipment, heavy machinery
    • Characteristics: High load capacity, good fatigue resistance.

  5. C90700 (Tin Bronze)

    • Chemical Composition: Cu 89%, Sn 11%
    • Mechanical Properties: Tensile Strength: 55 ksi, Yield Strength: 32 ksi
    • Equivalent Specification: ASTM B505, SAE 65
    • Typical Uses: Heavy-duty gears, bushings, machine parts
    • Characteristics: High hardness, excellent wear resistance.

Selection Considerations

When selecting a bearing bronze alloy, consider:

  • Load Capacity: Some alloys are better for high-load applications.
  • Speed of Operation: Consider the suitability for high or low speed applications.
  • Environment: Corrosion resistance is crucial in harsh environments.
  • Machinability: Some alloys are easier to machine than others, affecting manufacturing ease and cost.

Bearing bronze alloys are integral in applications where durability, resistance to wear, and performance under load are crucial. These alloys continue to be preferred in many industrial, automotive, and marine applications.

Explore Other Alloys

Suggested Searches: C86200, C86300, C93200, C95400

Material type: Aluminium Bronze, Tin bronze, Leaded bronze; Brass alloy, Special alloy

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