Detailed Product Description
Baoji Zhong Bang rare metal materials CO.,LTD holds Tantalum ,Niobium as the dominant products in the scope of rare metal new materials, including many sorts and grades of their metals, sheet, tube, wire ,rod ,crucible , target ,alloy and so on.
Tantalum features high melting point , low vapor pressure , good cold processability ,excellent chemical stability , good resistance to corrosion , high dielectric constant ,in surface oxide film .widely used in many industries such as electronics ,metallurgy, chemical processing , hard alloy cutters , aerospace and aviation.
Tantalum tube:
Material: RO5200, RO5400, RO5252(Ta-2.5W), RO5255(Ta-10W)
size: Diameter: φ1.0-120mm
Thickness: 0.2-5.0mm
Length: 200mm-6000mm
Standard: As per ASTM B521-98
Purity: ≥99.95% or 99.99%
Table 1. Chemical composition:
Chemistry % | |||||||||||||
Designation | Chief component | Impurities maxmium | |||||||||||
Ta | Nb | Fe | Si | Ni | W | Mo | Ti | Nb | O | C | H | N | |
Ta1 | Remainder | 0.004 | 0.003 | 0.002 | 0.004 | 0.004 | 0.002 | 0.03 | 0.015 | 0.004 | 0.0015 | 0.002 | |
Ta2 | Remainder | 0.01 | 0.01 | 0.005 | 0.02 | 0.02 | 0.005 | 0.08 | 0.02 | 0.01 | 0.0015 | 0.01 | |
Table2. Permissible variations in diameter & wall thickness
Outside diameter, inch (mm) | Diameter tolerance, inch(mm), +/- | Permissible variaton in wall thickness, %, +/- |
<1 (25.4) | 0.004 (0.102) | 10 |
1~1.5 (25.4~38.1) | 0.005 (0.127) | 10 |
1.5~2 (38.1~50.8) | 0.006 (0.152) | 10 |
2~2.5 (50.8~63.5) | 0.007 (0.178) | 10 |
2.5~3.5 (63.5~88.9) | 0.010 (0.254) | 10 |
Table3. Mechanical requirements (annealed condition)
Grade | Tensile strength δbpsi (MPa), ≥ | Yield strength δ0.2, psi (MPa),≥ | Elongation in 1"/2" gage length, %, ≥ |
RO5200/RO5400 | 30000 (207) | 20000 (138) | 25 |
RO5252 | 40000 (276) | 28000 (193) | 20 |
RO5255 | 70000 (481) | 60000 (414) | 15 |
RO5240 | 40000 (276) | 28000 (193) | 20 |
