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  •  
    Niobium Bar

    Description:

    Grade: RO4200-1, RO4210-2
    Standard: ASTM B392-98
    Standard size: diameter 4~100 mm
    Purity: Nb>99.95% or >99.99%

    Application:

    With high melting point, excellent anti-corrosion property and workability in cold environment, Nb and Nb alloy tube, rod and wire are widely used in chemistry, electronics, aviation and aerospace industry. They can be applied as nozzles and structural parts for airplane engines, inside elements and protection material for nuclear reactor, anti-corrosion parts under strong acid or environment.Your special requests are available.
  • Specification:

    Niobium round bar is manufactured as random length pieces or cut to customers’ desired lengths in diameters ranging from 0.125 inches to 5.00 inches. Please view Niobium Rod to see our standard sizes of niobium round bar. Below are most of the standard sizes of our niobium rectangular bars. If you do not see the size of niobium bar that you require, please feel free to contact us.

     

    Width Thickness Length Length Tolerance
    15mm 15mm 600mm +1mm, -0
    20mm 20mm 1000mm +1mm, -0
    45mm 45mm 1200mm +2mm, -0
    60mm 60mm 1500mm +3mm, -0

    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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