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    Niobium Rod 99.95%
    Standard:
    ASTM B392-99
    Grade:
    RO4200, RO4210
    Size:
    99.95%min

    Introduction:

    Niobium Rod , 99.95% Purity ,ASTM B392-99

    Application: Niobium mechanical parts, electric materials, high voltage sodiumlamp

    Grade:RO4200,RO4210

    Purity: 99.95%

    Manufacturing Standard: ASTM B392-99


    Specifications

    Metallic impurities, ppm max by weight, Balance - Niobium

    Element Fe Mo Ta Ni Si W Zr Hf
    Content 50 100 1000 50 50 300 200 200

    Non-Metallic impurities, ppm max by weight

    Element C H O N
    Content 100 15 150 100

    Mechanical properties for annealed rods 0.125in(3.13mm)-2.5in(63.5mm)

    Ultimate Tensile Strength (MPa) 125
    Yield strength (MPa, 2% offeset) 73
    Elongation(%, 1-in gage length) 25

    Dimensional Tolerance for Rods and Wires

    Diameter in (mm) Tolerance in (±mm)
    0.020-0.030(0.51-0.76) 0.00075(0.019)
    0.030-0.060(0.76-1.52) 0.001(0.025)
    0.060-0.090(1.52-2.29) 0.0015(0.038)
    0.090-0.125(2.29-3.18) 0.002(0.051)
    0.125-0.187(3.18-4.75) 0.003(0.076)
    0.187-0.375(4.75-9.53) 0.004(0.102)
    0.375-0.500(9.53-12.7) 0.005(0.127)
    0500-0.625(12.7-15.9) 0.007(0.178)
    0.625-0.750 (15.9-19.1) 0.008(0.203)
    0.750-1.000 (19.1-25.4) 0.010(0.254)
    1.000-1.500 (25.4-38.1) 0.015(0.381)
    1.500-2.000 (38.1-50.8) 0.020(0.508)
    2.000-2.500 (50.8-63.5) 0.030(0.762)
    黑龙江体彩6+1开奖结果