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  •  
    Niobium Tube
  • Description:

    Grade: RO4200-1, RO4210-2
    Standard: ASTM B392-98
    Standard size: diameter 0.25~3 mm
    Purity: Nb>99.9% or >99.95%

    Application:

    Due to niobium’s high melting point, corrosion resistance, cold processing and good performance characteristics, niobium wire is widely used in chemical, electronic, aviation and aerospace fields.

    Specification:

    Diameter, inch (mm) Tolerance, +/-inch (mm)
    0.010~0.020  (0.254~0.508) 0.0005 (0.013)
    0.020~0.030  (0.508~0.762) 0.00075 (0.019)
    0.030~0.060  (0.762~1.524) 0.001 (0.025)
    0.060~0.090  (1.524~2.286) 0.0015 ( 0.038)
    0.090~0.125  (2.286~3.175) 0.002 (0.051)

    Chemical Composition:

    Grade Chief Component Maximum Impurities (ppm)
    Nb Ta Si Ni W Mo Ti Fe O C H N
    Nb1 Balance <700 50 50 50 30 20 50 150 40 15 30
    Nb2 Balance <1000 80 40 100 100 40 80 180 60 15 50

    Physical Property:

    Grade Tensile strength  δbpsi (MPa) ≥ Yield strength  δ0.2, psi (MPa) ≥ Elongation in 1″/2″ gage length, %, ≥
    >=0.010 <0.010
    RO4200-1 18000 (125) 12000 (85) 25 20
    RO4210-2

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