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Help CenterASTM B521&B394 Standard Niobium Seamless Pipe
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Tantalum tube:
Standard:ASTM B521
Grade(UNS) |
Annealed |
||
Tensile strength min, psi (MPa) |
Yield strength min,psi (MPa) |
Elongation min, % (1 inch gage length) |
|
Pure Ta (RO5200, RO5400) |
30000 (207) |
20000 (138) |
25 |
Ta-10W (RO5255) |
70000 (481) |
60000 (414) |
15 |
Ta-2.5W (RO5252) |
40000 (276) |
28000 (193) |
20 |
Ta-40Nb (RO5240) |
40000 (226) |
28000 (193) |
20 |
| Content, Max, Weight % | |||||
| Element |
R05200 Unalloyed Tantalum |
R05255 90% Tantalum 10% Tungsten |
R05252 97.5% Tantalum 2.5% Tungsten |
R05240 60% Tantalum 40% Niobium |
|
| C | 0.010 | 0.010 | 0.010 | 0.010 | |
| O | 0.015 | 0.015 | 0.015 | 0.020 | |
| N | 0.010 | 0.010 | 0.010 | 0.010 | |
| H | 0.0015 | 0.0015 | 0.0015 | 0.0015 | |
| Fe | 0.010 | 0.010 | 0.010 | 0.010 | |
| Mo | 0.020 | 0.020 | 0.020 | 0.020 | |
| Nb | 0.100 | 0.100 | 0.50 | 35.0~42.0 | |
| Ni | 0.010 | 0.010 | 0.010 | 0.010 | |
| Si | 0.005 | 0.005 | 0.005 | 0.005 | |
| Ti | 0.010 | 0.010 | 0.010 | 0.010 | |
| W | 0.05 | 9.0~11.0 | 2.0~3.5 | 0.050 | |
| Ta | Remainder | Remainder | Remainder | Remainder |
|
Niobium tube:
Standard: ASTM B394
Grade(UNS) |
Annealed |
||
Tensile strength min, psi (MPa) |
Yield strength min,psi (MPa) |
Elongation min, % (1 inch gage length) |
|
R04200 |
18000 (125) |
10500 (73) |
25 |
R04210 Welded |
18000 (125) |
8500 (59) |
25 |
R04210 Seamless |
18000 (125) |
10500 (73) |
25 |
R04251 |
28000(195) |
18000(125) |
20 |
R04261 |
28000(195) |
18000(125) |
20 |
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