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Polish 99.95% pure Niobium tube and pipe
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Specification :
| Product Name | Polish 99.95% pure Niobium tube and pipe |
| Material | pure niobium and niobium alloy |
| Grade | RO4200.RO4210,R04251,R04261 |
| Standard | ASTM B393 |
| Process | Cold rolled, Hot rolled, Extruded |
| Characteristic | Melting point : 2468℃ / Boiling point : 4744℃ |
| Density | 8.6g/cm3 |
| Product Features | Excellent Corrosion Resistance , Good resistance to effect of heat |
Chemical Requirements:
| Chemistry % | ||||||||||||
| Designation | Chief component | Impurities less than | ||||||||||
| Nb | Fe | Si | Ni | W | Mo | Ti | Ta | O | C | H | N | |
| Nb1 | Remainder | 0.004 | 0.002 | 0.002 | 0.004 | 0.004 | 0.002 | 0.07 | 0.015 | 0.005 | 0.0015 | 0.003 |
| Nb2 | Remainder | 0.02 | 0.02 | 0.005 | 0.02 | 0.02 | 0.005 | 0.15 | 0.03 | 0.01 | 0.0015 | 0.01 |
Mechnical properties:
| 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 |