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    - Tungsten, molybdenum, tantalum, niobium


     
    ASTMB394 niobium tube/pipe

     
         

    ASTMB394 niobium tube/pipe

    1.specification

    Grade: RO4200.RO4210

    Size : Diameter: Dia. 1.0-100mm,Wallness: 0.2-5.0mm,Length:  200mm-6000mm

    Standard: ASTMB394

    Color: Silvery gray

    Available grades :  Pure grade, Nb-Ti alloy, Nb-Zr alloy (Nb-Zr1%, Nb-Zr10%)

    Supply condition: Cold rolled, Hot rolled, Extruded

    Product Feature : High melting point, High-density, high temperature oxidation resistance, long service life, resistance to corrosion

    Related Products niobium bar ,    niobium sheet , niobium pipe , niobium  wire ,  niobium foil ,  niobium  standard parts ,  niobium mesh , niobium disk ,   niobium crafts and so on.

    2.Mechnical properties

    Grade(UNS)

    Annealed

    Tensile strength min, psi (MPa)

    Yield strength min,psi (MPa)

    Elongation min, % (1 inch gage length)

    R04200

    18000 (125)

    10500 (73)

    25

    R04210  Welded

    18000 (125)

    8500 (59)

    25

     R04210  Seamless

    18000 (125)

    10500 (73)

    25

     R04251

    28000(195) 

    18000(125) 

    20 

     R04261

     28000(195)

    18000(125) 

    20 

     Chemical Components:

    Content, Max, Weight %
    Element

    R04200

    Unalloyed Niobium

    R04210

    Unalloyed Niobium

    R04251 (Reactor grade niobium-1% Zirconium)

    R04261 (Commercial grade niobium-1% Zirconium)

    C 0.010 0.010 0.010 0.010
    O 0.015 0.025 0.015 0.025
    N 0.010 0.010 0.010 0.010
    H 0.0015 0.0015 0.0015 0.0015
    Fe 0.005






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