tantalum tube
Commodity: tantalum tube
Standard: ASTM B521-98
Dimension: Dia ¦Õ1.0-120mm
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Tantalum tube Tantalum pipe
Material: RO5200, RO5400, RO5252(Ta-2.5W), RO5255(Ta-10W)
size: Diameter: ¦Õ1.0-120mm
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 ppm |
|
Designation |
Chief component |
Impurities maxmium |
|
Ta |
Nb |
Fe |
Si |
Ni |
W |
Mo |
Ti |
|
O |
C |
H |
N |
|
Ta1 |
Remainder |
300 |
40 |
30 |
20 |
40 |
40 |
20 |
|
150 |
40 |
15 |
20 |
|
Ta2 |
Remainder |
800 |
100 |
100 |
50 |
200 |
200 |
50 |
|
200 |
100 |
15 |
100 |
|
TaNb3 |
Remainder |
£¼35000 |
100 |
100 |
50 |
200 |
200 |
50 |
|
200 |
100 |
15 |
100 |
|
TaNb20 |
Remainder |
170000-
230000 |
100 |
100 |
50 |
200 |
200 |
50 |
|
200 |
100 |
15 |
100 |
|
Ta2.5W |
Remainder |
400 |
50 |
30 |
20 |
30000 |
60 |
20 |
|
150 |
50 |
15 |
60 |
|
Ta10W |
Remainder |
400 |
50 |
30 |
20 |
110000 |
60 |
20 |
|
150 |
50 |
15 |
60 |
Table2. Permissible variations in diameter & wall thickness
|
Outside diameter, inch (mm) |
Diameter tolerance, inch(mm), +/- |
Permissible variation 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 ¦Äbpsi (MPa), ¡Ý |
Yield strength ¦Ä0.2, psi (MPa),¡Ý |
Elongation in 1"/2" gage length, %, ¡Ý |
|
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 |
Special requirements to be agreed on by the supplier and buyer of negotiation