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Products
    Tantalum Tube/Pipe -Welded
    Standard：
    ASTM B521-98
    Grade：
    RO5200
    Size：
    Customized

    Introduction：

    99.95%(3N5) Purity Tantalum Tube , Welded Tantalum Pipes , Tantalum Welded Tubing

    Specifications

    Purity: 99.95%(3N5)

    Grade:RO5200

    Manufacturing Standard: ASTM B521-98

    Metallic impurities, ppm max by weight, Balance - Tantalum

    Element Fe Mo Nb Ni Si Ti W
    Content 100 200 1000 100 50 100 50

    Non-Metallic impurities, ppm max by weight

    Element C H O N
    Content 100 15 150 100

    Mechanical properties for annealed tantalum tube

    Ultimate Tensile Strength min(MPa) 207
    Yield strength min (Mpa, 0.2% offset) 138
    Elongation min (%, 1in or 2in gauge length) 25

    Dimension Tolerance

    Outer Diameter

    (mm)

    DiameterTolerance

    (±mm)

    Thickness Tolerance

    (%)

    25.4 0.102 10
    25.4-38.1 0.127 10
    38.1-50,8 0.152 10
    50.8-63.5 0.178 10
    63.5-88.9 0.254 10

    Straightness of tantalum tubes/pipes

    Length

    ft(m)

    		Maximus Radian
    3-6 (0.91-1.83) 1/8 in (3.2mm)
    6-8 (1.83-2.44) 3/16 in (4.8mm)
    8-10 (2.44-3.05) 1/4 in (6.4mm)
    10 up(3.05 up) 1/4 in/ any 10 ft (2.1mm/m)

    Descrition

    Tantalum can be manufactured into welded tubing and seamless tubing, which are widely used in electronics, semiconductor, chemical, engineering, aviation, aerospace, medical, military industry.

    The process of welded Tube/Pipe is Fit for mass production, the advantages and disadvantages are as below

    Advantages:

    • Uniform wall thickness, internal surface is in good quality
    • High production efficiency and low costs
    • Easy to manufacture larger diameter tubes/pipes
    • Short production term
    • Easy to control prodcts quality

    Disadvantages:

    • Poor flexibility, not available to produce various of specifications but small quantity products
    • Welding seam is hard and require skilled person and easy to cause troubles
    • Difficult to clean the welding line
    • Difficult to control ovality
    • Strict dimension requirements for tantalum strips

    Towin Rare Metals produce RO5200, RO5400 with different dimensions of the tantalum tubes. Our tantalum welded tubes offer significantly better wall thickness and concentricity control compared to seamless tubes. wall thicknesses are specified to be as thin as structural conditions will permit.