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  • Tantalum in the form of wire and sheets is used in medicine – in bone and plastic surgery (bonding of bones, “patches” for damage to the skull, stitching, etc.). Metal does not irritate living tissue at all and does not harm the vital functions of the body.

    The corrosion resistance of tantalum in acids and other environments, in combination with high thermal conductivity and plasticity makes it a valuable structural material for equipment in chemical and metallurgical industries. Tantalum serves as a die material (instead of platinum) for the formation of fibers in the production of artificial silk.

    Tantalum is part of various heat-resistant alloys for gas turbines of jet engines. Doping with tantalum molybdenum, titanium, zirconium, aluminum and copper dramatically improves the properties of these metals, as well as their alloys.

    In addition, tantalum is a plastic metal; thin-walled products and products of complex shape can be made from it. It is not surprising that it has become an indispensable structural material for the chemical industry. Tantalum apparatus is used in the production of many acids (hydrochloric, sulfuric, nitric, phosphoric, acetic), bromine, chlorine, hydrogen peroxide.

    Measurement Value Units
    Melting temperature 3017 ° C
    Boiling temperature 5458 ° C
    Firmness 180 HB
    Density 16,65 g/cm3

      

    The following table show the main tantalum  alloys : 

    Alloy type Base element Impurities, not more than, %
    Si Fe Ca Mg Mn Na Ni Cr Ti Cu Al H Sn Co Nb Zr W Mo C N O
    ELP-1 Ta>99.9 0,0015 0,0015 0,0015 0,0002 0,0002 0,0002 0,0003 0,0004 0,0005 0,0005 0,0005 0,0005 0,0001 0,0001 0,05 0,001 0,005 0,0006 0,01 0,01 0,01
    ELP-2 Ta>99.92 0,0012 0,0012 0,001 0,0002 0,00015 0,00015 0,0002 0,00025 0,0003 0,0005 0,0005 0,0004 0,0001 0,0001 0,014 0,0007 0,005 0,0005 0,005 0,005 0,005
    ELP-3 Ta>99.96 0,0012 0,0012 0,001 0,0002 0,00015 0,00015 0,0002 0,00025 0,0003 0,0005 0,0005 0,0004 0,0001 0,0001 0,014 0,0007 0,005 0,0005 0,003 0,003 0,003

     

    Alloy type Base element,% Additives, not more than, (Nb) % Impurities, not more than, %
    Fe Ti Si W Mo
    TN-3 Ta>96 3,5 0,1 0,1 0,1 0,1 0,1
    TCh Ta>99,75 0,1 0,05 Ti+Si+W+Mo<0,1
    TT-1 Ta>98,3 0,55 0,05 Ti+Si+W+Mo<0,25 ThO₂  0,7-1

     

    Alloy type Base element,% Additives, not more than, (Nb) % Impurities, not more than, %
    Fe Ti Si W Mo
    T Ta+Nb-99,875 Nb<0,5 0,03 0,01 0,005 0,05 0,03

     

    Alloy type Base element,% Impurities, not more than, %
    Nb Ti Al H W+Mo O Na Mg Mn Ca Cr Cu Ni Zr Sn Fe Si C N W Mo
    TVCh Ta-Rest 0,25 0,001 0,001 0,001 0,015 0,015 0,0004 0,0003 0,0003 0,002 0,0006 0,0006 0,0005 0,0005 0,0005 0,005 0,003 0,01 0,01
    TVCh-1 Ta-Rest 0,5 0,003 0,001 0,025 0,01 0,006 0,01 0,01 0,1 0,15

     

    Alloy type Base element,% Additives, not more than, ( W ) % Impurities, not more than, %
    Nb Ti Fe Si C N O Mo H
    TW-5 Ta –Rest 4,0-6 0,01 0,01 0,01 0,01 0,01 0,01 0,01 0,1 0,001
    TW-10 9,0-11
    TW-15 13,5-16,5

     

    Alloy type Base element,% Additives, not more than, (W, Nb) % Impurities, not more than, %
    N C Fe Ni Ti O H Si Mo
    TaB-10 Ta – Rest Nb -0,1 W 9-11 0,01 0,01 0,01 0,01 0,01 0,015 0,002 0,005 0,02
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