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Tantalum Tube/Pipe -Welded
Standard：
ASTM B521-98
Brand：
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.

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