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    Tantalum Product
                          Tantalum and tantalum alloy   

    Chemistry                                   %

    Designation

    Chief component

    Impurities    maxmium

    Ta

    Fe

    Si

    Ni

    W

    Mo

    Ti

    Nb

    O

    H

    N

    C

    R05200

    Remainder

    0.010

    0.005

    0.010

    0.050

    0.020

    0.010

    0.10

    0.015

    0.0015

    0.010

    0.010

    R05400

    Remainder

    0.010

    0.005

    0.010

    0.050

    0.020

    0.010

    0.10

    0.030

    0.0015

    0.010

    0.010

    R05252

    Remainder

    0.010

    0.005

    0.010

    2.0~3.5

    0.020

    0.010

    0.50

    0.015

    0.0015

    0.010

    0.010

    R05255

    Remainder

    0.010

    0.005

    0.010

    9.0~11..0

    0.020

    0.010

    0.10

    0.015

    0.0015

    0.010

    0.010

    R05240

    Remainder

    0.010

    0.005

    0.010

    0.050

    0.020

    0.010

    35.0~42.0

    0.020

    0.0015

    0.010

    0.010

    Tantalum fabricated sheets and plates

    - Chemical process equipment including lining, cladding, tanks, valves, heat exchangers
    - Cathodic protection systems for steel structures such as bridges, water tanks
    - Corrosion resistant fasteners, screws, nuts, bolts
    - Spinnerettes in synthetic textile manufacture

    Superior corrosion resistance - equivalent in performance to glass

    Tantalum fabricated sheets, plates, rods, wires

    - Prosthetic devices for humans - hip joints, skull plates, mesh to repair bone removed after damage by cancer, suture clips, stents for blood vessels

    Attack by body fluids is non-existent; highly bio-compatible

    Tantalum fabricated sheets, plates, rods, wires

    - High temperature furnace parts

    Melting point is 2996°C although protective atmosphere or high vacuum required

    Tantalum ingot

    - Sputtering targets

    Applications of thin coatings of tantalum, tantalum oxide or nitride coatings to semi-conductors to prevent copper migration

    Tantalum ingot

    - High temperature alloys for:
    - air and land based turbines (
    e.g. jet engine discs, blades and vanes)
    - rocket nozzles

    Alloy compositions containing 3-11% tantalum offer resistance to corrosion by hot gases, allow higher operating temperatures and thus efficiency and fuel economy

    Tantalum ingot

    - Computer hard drive discs

    An alloy containing 6% tantalum has shape memory properties

    Tantalum ingot

    - Explosively Formed Projectile for TOW-2 missile

    Balance of density and formability allow for a lighter and more efficient system

     

    

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