C86300 Manganese Bronze Material

Standard Components for Sliding Material
Oilless Bronze Sliding Materials

C86300 Manganese Bronze

Introduction to C86300 Manganese Bronze

CuZn25Al5, also known as 2.0550 or C86300 Manganese Bronze

  • Wear Resistance: C86300 Manganese Bronze exhibits exceptional wear resistance, making it suitable for high-wear and high-load environments. It is commonly used to manufacture bearings, bushings, gears, and sliding elements that endure heavy loads and high friction.
  • High Strength: This alloy boasts very high yield strength and tensile strength, performing excellently in applications that require bearing large loads.
  • Impact Resistance: C86300 Manganese Bronze also has good impact resistance, maintaining strength and stability under shock or vibration.
  • Heat Resistance: This alloy can operate in high-temperature environments, making it suitable for high-temperature applications.
  • Corrosion Resistance: C86300 Manganese Bronze shows good corrosion resistance, particularly in freshwater and seawater environments.
  • Machinability: Despite its excellent mechanical properties, C86300 Manganese Bronze is easy to machine, forge, weld, and cut.

Continuous Casting C86300 Manganese Bronze Bushing

The continuous casting process significantly influences the properties of C86300 manganese bronze bushings, enhancing their performance in various applications.

  1. Continuous casting allows for a more uniform microstructure compared to other casting methods like sand or centrifugal casting.
  2. Continuous casting typically results in higher tensile strength (up to 110 ksi) and yield strength (approximately 65 ksi) for C86300 manganese bronze. This is due to the controlled cooling rates during the casting process, which can refine the grain structure and enhance the alloy’s overall strength.
  3. The continuous casting process can enhance the wear resistance and corrosion resistance of C86300 bushings.
  4. Many C86300 manganese bronze bushings are designed with self-lubricating properties, often incorporating solid lubricants like graphite. The continuous casting process allows for effectively integrating these lubricants into the bushing material, enhancing their performance in applications where traditional lubrication is challenging.
C86300 manganese bronze bushing with grease groove design

Selection & Procurement Guide: Is C86300 Right for Your Project?

C86300 Manganese Bronze Bushings – ASTM B505 C86300 Bronze

Choosing the correct bushing material is critical for preventing premature failure. C86300 Manganese Bronze is not a general-purpose replacement for standard bronzes; it is a specialized alloy for extreme conditions.

Use the following checklist to determine if C86300 is the ideal solution for your application conditions.

1. Operational Envelope Assessment

If your equipment parameters match the following ranges, C86300 is highly recommended:

  • Load Capacity (High Pressure):

    • Static/Dynamic Load: ≥ 80 MPa (11,600 psi).

    • Why? Ordinary leaded tin bronzes (like C93200) often deform under loads exceeding 35 MPa. C86300’s high yield strength ensures dimensional stability under massive weight.

  • Surface Speed (Low Velocity):

    • Speed Limit: ≤ 2 m/s (Slow oscillating or rotating motion).

    • Why? Due to its hardness and high coefficient of friction, C86300 generates heat at high speeds. It is optimized for slow, heavy movements rather than fast RPMs.

  • Operating Temperature:

    • Range: -40°C to +300°C (-40°F to 572°F).

    • Condition: For temperatures above 150°C, we strictly recommend our Solid Lubricant (Graphite Plugged) configuration to prevent grease carbonization.

2. Environmental Challenges

C86300 is engineered to perform where standard lubrication fails or environmental factors are aggressive:

  • Corrosive Media:

    • Ideal for environments exposed to seawater, brine, and mild acids/alkalis. The chemical composition (Manganese/Aluminum content) creates a protective oxidation layer, making it a superior choice for marine deck machinery and chemical processing valves.

  • Inaccessible for Maintenance:

    • For locations where re-lubrication is dangerous, costly, or impossible (e.g., inside boom structures, high-altitude equipment), the Self-Lubricating Graphite option provides a “Fit and Forget” solution.

  • Extreme Frontiers (Deep Sea & Polar):

    • Deep Sea: Withstands the immense hydrostatic pressure and saline corrosion of subsea oil & gas operations (ROVs, blowout preventers).

    • Polar/Arctic: Remains ductile and functional at freezing sub-zero temperatures where standard oils may congeal.

3. Impact & Shock Load Requirements 

Does your equipment experience sudden, jarring forces?

  • Impact Resilience: Unlike harder but brittle materials (like hardened steel bearings), C86300 has the elasticity to absorb shock loads from rock crushing, pile driving, or heavy earthmoving without cracking.

High-strength C86300 manganese bronze bearings designed for Mining Machinery
High-strength C86300 manganese bronze bearings designed for hydraulic systems

High-strength C86300 manganese bronze bearings designed for heavy machinery, crushers, and hydraulic systems. Request a quote today.

Heavy Duty C86300 Manganese Bronze Bushing Manufacturer

Exploring the Versatility of C86300 Manganese Bronze Material in Modern Engineering

C86300 is one of the most popular base materials for graphite-plugged self-lubricating bearings. The embedded solid lubricant allows the bearing to operate without regular oil or grease, especially in environments where lubrication is difficult.

Typical products include:

  • Sleeve bushings
  • Flanged bushings
  • Thrust washers
  • Wear plates
  • Guide components
  • Special custom bronze parts

This makes it highly suitable for steel plants, heavy machinery, mining equipment, and automation systems.

Bronze Alloy Chart, Self Lubricated Graphite fitted bush
Wide Selection of Standard and Custom Products
ASTM Bronze material Plate
Bronze graphite bearings are ideal for applications requiring continuous lubrication in hard-to-reach areas.

How to Order The C86300 Manganese Bronze Bushing

To ensure the fastest lead time and accurate manufacturing, please provide the following details when sending your inquiry:

  1. Material Spec: Confirm C86300 / SAE 430B / AMS 4862.

  2. Dimensions: ID, OD, and Length (with tolerances, e.g., m6, H7).

  3. Lubrication Type:

    • Type A: Oil Grooves (Specify pattern: Figure-8, Loop, Straight).

    • Type B: Solid Lubricant Plugs (Graphite) – Recommended for maintenance-free needs.

  4. Mating Shaft Hardness: Crucial Note: Ensure your mating shaft is hardened to at least HRC 50 (or HB 500) to prevent the bronze bushing from wearing out the shaft.

  5. Quantity: Prototype (1-5 pcs) or Production Run.

C86300 manganese bronze bushing with graphite plugs
C863 Manganese Bronze Plate

Application Of C86300 manganese bronze

C86300 manganese bronze is widely used in the following areas:

  • Fasteners: such as bolts and nuts
  • Fluid Control System Components: including valve seats and plungers
  • Mechanical Parts: such as pump shafts and marine structural components
  • Electrical Components: leveraging its good conductivity
  • Bearings and Bushings: commonly used to make bearings, bushings, and sliding elements, particularly in high-load and high-wear applications like mining equipment, construction machinery, and agricultural machinery
  • Gears and Pins: due to its wear resistance and high strength, this alloy is widely used in making gears, pins, and transmission parts
  • Marine Engineering: used to manufacture marine engineering equipment such as anchor chains, propellers, ship fittings, and marine valves because of its excellent corrosion resistance in seawater
  • Automotive Industry: this alloy can also be used in automotive parts like turbochargers and transmission components due to its wear resistance and high-temperature stability

Sustainability in Metalworking: The Eco-Friendly Advantages of C86300 Manganese Bronze

We provide custom manufacturing of finished bronze bearing material parts and self-lubricating bronze, precisely based on our customs’ drawings.

different types of bronze bearing materials and their details:

Bronze Bearing Material Properties Applications Details
Tin Bronzes Hardness, machinability, high resistance General engineering, bearing applications Known as red bronzes or leaded gunmetal. Comply with international standards.
Leaded Bronzes Excellent corrosion resistance, high operational properties Bearing and bushing applications, custom applications Manufacture bespoke alloys based on client requirements.
Aluminium Bronzes Superior hardness and resistance compared to other bronze alloys. High importance on corrosion resistance, especially in marine environments. Marine environments, high-corrosion applications Used where corrosion resistance is crucial, particularly in marine applications.
High Tensile Brasses Alloys of copper and zinc with small percentages of other metals to enhance properties. Various industrial applications Improved properties due to the inclusion of other metals.
Special Bronze Alloys Suitable for specialized applications, such as moulds for glass or embossing, marine tube accessories, valve and terminal components. Specialized industrial applications Range includes alloys for specific uses like glass moulds, marine accessories, and more.
Eco-Alloys Lead-free bronze alloys manufactured on request. Eco-friendly applications Tailored for environmental compliance and eco-friendly applications.

Additional Information:

  • Find out more: For detailed specifications, additional properties, and custom manufacturing options, further inquiry is encouraged.
  • Request a quote: For eco-alloys and bespoke alloy requests, quotes can be provided upon request.

If you need this in a graphical format, let me know, and I can create a chart for you.

 

Equivalent Specifications

CDA ASTM SAE AMS Federal Other
C86300 B505 QQ-C-523
B505M J461
B271 J462
B271M

Chemical Composition

According to ASTM B505/B505M-23:

Element Composition (%)
Cu 60.00 – 66.00
Pb 0.20
Sn 0.20
Zn 22.00 – 28.00
Fe 2.00 – 4.00
Ni 1.00
Al 5.00 – 7.50
Mn 2.50 – 5.00

Notes:

  1. In determining Cu min., Cu may be calculated as Cu + Ni.
  2. Ni value includes Co.
  3. Single values represent maximums.

Machinability

Copper Alloy UNS No. Machinability Rating Density (lb/in³ at 68 °F)
C86300 8 0.283

Mechanical Properties

According to ASTM B505/B505M-23:

Property Value
Tensile strength, min 110 ksi (758 MPa)
Yield strength, at 0.5% extension under load, min 62 ksi (427 MPa)
Elongation, in 2 in. or 50 mm, min 14%
Brinell hardness (3000 kg load), typical BHN 223

Note: Compression deformation limit min 55 ksi (380 MPa)

Physical Properties

Provided by CDA:

Property US Customary Metric
Melting point – liquidus 1693 °F 923 °C
Melting point – solidus 1625 °F 885 °C
Density 0.283 lb/in³ at 68 °F 7.83 g/cm³ at 20 °C
Specific gravity 7.83 7.83
Electrical conductivity 8% IACS at 68 °F 0.046 MegaSiemens/cm at 20 °C
Thermal conductivity 20.5 Btu/sq ft/ft hr/°F at 68 °F 35.5 W/m at 20 °C
Coefficient of thermal expansion 12 x 10⁻⁶ per °F (68-572 °F) 20.7 x 10⁻⁶ per °C (20-300 °C)
Specific heat capacity 0.09 Btu/lb/°F at 68 °F 377.1 J/kg at 20 °C
Modulus of elasticity in tension 14200 ksi 97900 MPa
Magnetic Permeability 1.09 1.09

Note: Field strength 16 kA/m

Fabrication Properties

Provided by CDA:

Technique Suitability
Soldering Poor
Brazing Poor
Oxyacetylene welding Poor
Gas shielded arc welding Poor
Coated metal arc welding Good
Machinability rating 8

Thermal Properties

Provided by CDA:

Property Value
Temperature Fahrenheit (°F)
Time for stress relief, solution treatment, and annealing Hours/inch of thickness
Time for precipitation heat treatment Hours

 

Material Type: Metal Matrix

Material Correspondence Chart

Codes China (GB1176-87) International (ISO 1338) Germany (DIN) Japan (JIS) USA (ASTM/UNS) UK (BS) France (NF) Application Conditions
JDB650 ZCuZn25Al6Fe3Mn3 GCuZn25Al6Fe3Mn3 DIN1709 G-CuZn25Al5 H5102 CAC304 B30-92 C86300 HTB2 High load, low speed, general use
JDB650 S1 ZCuZn25Al6Fe3Mn3 GCuZn25Al6Fe3Mn3 DIN1709 G-CuZn25Al5 H5102 CAC304 B30-92 C86300 HTB2 Extremely high load, low speed, high bearing
JDB650 S2 ZCuSn5Pb5Zn5 GCuPb5Sn5Zn5 DIN1705 G-CuSn5ZnPb H5111 BC6 B30-92 C83600 LG2 CuPb5Sn5Zn5 Medium load, low speed
JDB650 S3 ZCuAl9Fe4Ni4Mn2 GCuAl10FeNi5 DIN17656 G-CuAl10Ni H5114 AlBC3 B30-92 C95500 AB2 CuAl10Fe5Ni5 Medium load, medium speed, general use
JDB (HT250) Cast Iron GB5675-85 HT250 FC250 ASTM Class40 Medium load, low speed

This chart provides a clear and detailed comparison of various metal alloys across different standards, highlighting their applications and suitability for specific operational conditions.

C86300 Bronze Bearing plate Used in Injection Molds & Stamping Dies

In mold and die industries, components must withstand repeated heavy loads, friction, and high pressure. C86300 bronze provides excellent dimensional stability and wear resistance for:

  • Guide bushings
  • Sliding blocks
  • Mold wear plates
  • Die guide elements
  • Press machine components
  • Heavy-duty sliding parts

Its durability helps reduce downtime and improve production efficiency.

Custom Bronze Bearing Solutions Available

We supply C86300 / CuZn25Al5 bronze bushings in standard and custom designs based on customer drawings or CAD files.

Available options include:

  • Graphite plugged self-lubricating bushings
  • Oil groove machining
  • OEM custom dimensions
  • Non-standard special parts
  • Precision CNC machining

For high-load industrial applications, C86300 manganese bronze is a reliable and cost-effective solution for long-lasting performance.

ASTM B22 C86300 Manganese Bronze Slide Plate (Bridge Bearing)

C86300 manganese bronze (also known as SAE 430B) is a high-strength copper alloy widely used for bridge bearing slide plates. It combines high load capacity, corrosion resistance, and reliable self-lubricating performance, making it suitable for demanding structural applications.

1. Material Overview

Standard: ASTM B22
Alloy: UNS C86300 Manganese Bronze

Chemical Composition:

  • Copper (Cu): 60–66%

  • Zinc (Zn): 22–28%

  • Aluminum (Al): 5–7.5%

  • Manganese (Mn): 2.5–5%

  • Iron (Fe): 2–4%

Mechanical Properties:

  • Tensile Strength: 110–130 ksi (758–896 MPa)

  • Yield Strength: 62–85 ksi (427–586 MPa)

  • Hardness: approx. 225–320 HB

  • Excellent resistance to atmospheric corrosion and weathering

This composition provides high strength, good hardness, and durability under heavy loads.

2. Function in Bridge Bearings

In bridge engineering, a C86300 slide plate is used in expansion or sliding bearing systems.

Main Role:

  • Supports heavy vertical loads from the bridge structure

  • Allows controlled horizontal movement caused by thermal expansion, contraction, or seismic activity

Typically, the bronze plate is fixed to the base (masonry or sole plate), while a harder mating surface slides over it.

3. Self-Lubricating Design (Graphite Plugged)

Plain bronze has a relatively high friction coefficient. For bridge applications, C86300 plates are usually graphite plugged.

Design Features:

  • Holes are drilled in a regular pattern (about 25–30% surface coverage)

  • Filled with compressed solid graphite plugs

Working Principle:

  • During sliding, graphite forms a thin lubricating film on the surface

  • Reduces friction and wear

  • Eliminates the need for regular greasing

Friction Coefficient:

  • With graphite plugs: approx. 0.10–0.15 (dry)

  • Without plugs: >0.30 (generally unsuitable for bridge expansion systems)

4. Mating Surface Requirements

For proper performance, the sliding surface must be harder and smoother than bronze.

Common Material:

  • Polished stainless steel (ASTM A240 Type 304 or 316)

Surface Finish:

  • Mirror-polished (#8 finish) to reduce friction and minimize wear

This pairing prevents galling and ensures long-term sliding performance.

5. Design and Performance Considerations

  • High Load Capacity: Suitable for heavy bridge spans; in some designs, bearing stress can reach up to 8,000 psi.

  • Temperature Resistance: Can operate under elevated temperatures; design pressure may reach 1,000 psi at 800°F.

  • Machinability: Good machinability allows custom sizes and configurations.

  • Standards Compliance: Manufactured according to ASTM B22; often specified in AASHTO and DOT bridge standards.

6. Key Advantages for Bridge Applications

  • Maintenance-free due to solid graphite lubrication

  • High strength and wear resistance

  • Excellent corrosion resistance for outdoor environments

  • Stable performance under slow, intermittent movement

  • Long service life with minimal risk of seizure or galling

ASTM B22 C86300 manganese bronze slide plates are critical components in bridge bearing systems. Their high strength, corrosion resistance, and graphite-based self-lubrication ensure reliable load support and controlled movement, improving the durability and long-term performance of bridge structures.

Choose Your Bronze Alloy For High-Strength Applications Now!

Looking for custom solutions for your industrial needs? Our C86300 Manganese Bronze Bushings offer the perfect blend of durability and customization.

  • Bespoke Manufacturing: We specialize in custom-made bushings to fit your exact requirements.
  • Advanced Engineering: Utilizing technology to produce bushings with superior performance.
  • Direct Factory Supply: Benefit from our efficient production processes and cost-effective solutions.
  • Reliable Partnership: Count on our expertise and dedicated support team to deliver outstanding results.

Trust our Durable Bronze Bushings for your next project!