High quality phosphor bronze rod C5441 JIS H3270

  • High quality phosphor bronze rod C5441 JIS H3270


    C5441- CuSn4Zn4Pb4 - UNS.C54400 Phosphor Bronze Alloys, is a multi-alloy phosphor bronze containing 4% tin, 4% zinc and 4% lead, is the finest bearing alloy that the industry has to offer, it is a lead-containing multi-alloy bronze exhibiting a very good machinability, it is furthermore distinguished by its excellent spring properties. C54400 is used for electrical contacts which have to be manufactured as turned part. C54400 can be work-hardened up to 800 N/mm2 and therefore if of considerably higher strength than lead-containing brass alloy. When annealed, this metal can be bent, formed, blanked, and stamped.

    Typical Application for C5441 Phosphor Bronze Alloys
    Electrical: Electrical Connectors
    Industrial: Cam followers, Bushings, Gears, Pinions, Shafts, Valve Parts, Sleeve Bearings, Thrust Bearings, Screw Machine Products, Bearings, Thrust Washers
    Marine: Marine Parts 
    Available Sizes:
    Custom Diameter & Sizes, Random Mill lengths

    Available Products (forms):
    Round bars, Flat bars, Square bars, Round Wires, Round Strips
    Custom shapes are available upon request.

    Chemical Composition:

    Sn: 3.50-4.50%
    Pb: 3.50-4.50%
    Zn: 3.50-4.50%
    P:  0.01-0.50%
    Cu: Balance

    Note: Copper plus additions equal 99.50% minimum.

    Typical Physical Properties:

    Specific Gravity: 8.89 g/cm3
    Coefficient of Thermal Expansion per °C: 17.30 x 10-6 (20-300°C)
    Electrical Conductivity (% IACS): 19.00 % @ 68 F
    Thermal Conductivity: 50.00 Btu · ft/(hr · ft2·oF)at 68F
    Modulus of Elasticity in tension: 15000 ksi

    1). the units are based upon US Customary.
    2). the typical physical properties apply to age hardened products.

    International Specification:

    Rods/Bars: UNS.C54400, CDA544, ASTM B139, B103
    European Standards: CuSn4Zn4Pb4,JIS H3270, EN 12164 CW 456 K


Copper Contact
Nickel Contact
Titanium Contact
Nickel products
Copper products
Titanium products
PRODUCTS    COPPER & COPPER ALLOYS    High quality phosphor bronze rod C5441 JIS H3270