C84400 Bronze Bushing

From industrial machinery to automotive components, C84400 Bronze Bushing proves its versatility in various applications. Its robust construction and adaptable design make it suitable for a wide range of uses. Whether you’re in the manufacturing, construction, or automotive industries, this bushing is your go-to solution for superior performance.


Durability Redefined: C84400 Bronze Bushing

C84400 bronze, commonly referred to as leaded semi-red brass, stands out as an alloy prized for its favorable machining and casting attributes, as well as its economical nature. Below are the specifications and potential uses of C84400 bronze bushings:

C84400 Bronze Bushing’Properties

Chemical Composition: Typically comprises 78.00-82.00% copper (Cu), 6.00-8.00% lead (Pb), 2.30-3.50% tin (Sn), and 7.00-10.00% zinc (Zn), with minor quantities of iron (Fe), phosphorus (P), nickel (Ni), aluminum (Al), sulfur (S), antimony (Sb), and silicon (Si).

Mechanical Properties: Exhibits a minimum tensile strength of 30 ksi (207 MPa), yield strength at 0.5% extension under load of 15 ksi (103 MPa), and elongation of 16% in 2 inches or 50 mm. Typical Brinell hardness is 55 BHN.

Physical Properties: Melting point ranges between 1549 °F (843 °C) for the solidus and 1840 °F (1004 °C) for the liquidus. Density stands at 0.314 lb/in³ at 68 °F (8.69 gm/cm³ at 20 °C), with a specific gravity of 8.69. Electrical conductivity is 16.4% IACS at 68 °F, and thermal conductivity is 41.8 Btu/sq ft/ft hr/°F at 68 °F. Coefficient of thermal expansion is 10 x 10^-6 per °F (68-572 °F), and specific heat capacity is 0.09 Btu/lb/°F at 68 °F. Modulus of elasticity in tension is 13000 ksi (89600 MPa), with a magnetic permeability of 1.

Machinability Rating: Possesses an excellent machinability rating of 90.

Fabrication Properties: Excelling in soldering and suitable for brazing, though not recommended for oxyacetylene and gas shielded arc welding. Coated metal arc welding is deemed fair.

C84400 Bronze Bushing supplier

Applications of C84400 Bronze Bushing

C84400 bronze bushings find utility across various domains due to their versatile properties:

  • Plumbing: Widely applied in plumbing fixtures and pipe fittings.
  • Industrial: Suitable for low-pressure fittings, pump fixtures, valve bodies in the water industry, valve seats, and water meter valves.
  • Marine: Utilized in boat components, marine hardware, and transducer nuts.
  • Building Hardware: Employed in deadbolt lock cases, prison door hardware, and other hardware applications.
  • Architecture: Utilized in ornamental fixtures.
  • Consumer Products: Found in musical instruments.
  • Electrical: Applicable for electrical equipment.

The lead content within C84400 bronze ensures pressure tightness, rendering it a cost-effective material for low-load bearings and various components necessitating excellent corrosion resistance and machinability.

What Are The Alternatives To C84400 Bronze Bushing

Various alternatives to C84400 bronze bushings exist, encompassing a range of bronze alloys, each offering distinct mechanical and physical properties tailored to specific applications. Here are some alternatives:

Manganese Bronze

  • C86200: Renowned for its high strength and exceptional resistance to corrosion and wear. Commonly utilized in heavy-duty mechanical products like brackets, shafts, gears, and structural parts.
  • C86300: Provides even greater strength and finds application in slow-speed heavy load bearings, gears, and machinery parts, often serving as substitutes for steel and malleable iron.
  • C86500: Exhibits moderate strength and good corrosion resistance, making it suitable for marine fittings, valve stems, and propellers in both salt and fresh water environments.

Leaded Manganese Bronze

  • C86400: A leaded alloy featuring good machinability and moderate strength. Ideal for applications requiring pressure tightness such as bushings and pump fixtures.
  • C86700: Boasts a higher lead content for improved machinability, often used in applications like high-speed/heavy-pressure bearings and impellers.

Aluminum Bronzes

  • C95200, C95300, C95400, C95500, C95800: These alloys, containing between 3% and 12% aluminum, offer strengthened properties. Renowned for their high corrosion and oxidation resistance coupled with robust mechanical properties, they are favored for heavily loaded applications, particularly in bearings.

Copper-Bismuth (Lead-Free Alternative Alloys)

  • C89320, C89325, C89831, C89833, C89835, C89836, C89837: Lead-free alternatives, compliant with regulations such as the Federal Reduction of Lead in Drinking Water Act. Utilized in various applications including pump shaft sleeves, flanges, backflow preventers, and bushings.

High Leaded Tin Bronzes

  • C93200 (SAE 660): Widely embraced as the most prevalent bearing bronze alloy, offering commendable machinability and wear resistance.

Nickel Aluminum Bronze

  • C95520: Distinguished by its highest strength among standard copper-based alloys, suitable for applications necessitating exceptional strength, wear, and corrosion resistance.

When considering alternatives to C84400 bronze bushings, it’s vital to assess specific application requirements such as load-bearing capacity, corrosion resistance, machinability, and adherence to environmental regulations. The array of alternatives outlined above presents a spectrum of properties to address diverse industrial needs.


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