tantalum pipe
size: O.D F1.0mm x 0.2mm(0.2mm-5.0mm)--- F60mm
Material: RO5200, RO5400, RO5252(Ta-2.5W), RO5255(Ta-10W)
Standard: As per ASTM B521-98
Purity: ≥99.95% or 99.99%
Chemical composition
Element | RO5200 | RO5400 | RO5255 | RO5252 | R5240 |
%WT, (Max) |
C | 0.010 | 0.010 | 0.010 | 0.010 | 0.010 |
O | 0.015 | 0.03 | 0.015 | 0.015 | 0.020 |
N | 0.010 | 0.010 | 0.010 | 0.010 | 0.010 |
H | 0.0015 | 0.0015 | 0.0015 | 0.0015 | 0.0015 |
Nb | 0.10 | 0.10 | 0.10 | 0.50 | 35.0~42.0 |
Fe | 0.010 | 0.010 | 0.010 | 0.010 | 0.010 |
Ti | 0.010 | 0.010 | 0.010 | 0.010 | 0.010 |
W | 0.050 | 0.050 | 9.0~11.0 | 2.0~3.5 | 0.050 |
Mo | 0.020 | 0.020 | 0.020 | 0.020 | 0.020 |
Si | 0.005 | 0.005 | 0.005 | 0.005 | 0.005 |
Ni | 0.010 | 0.010 | 0.010 | 0.010 | 0.010 |
Ta | balance | balance | balance | balance | balance |
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 |
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 |