Specifications for Niobium Wire
Material: R04200-Type 1 -Reactor grade unalloyed niobium
R04210-Type 2 -Commercial grade unalloyed niobium
Diameter: 0.2~3.0mm
Specifcation: As per ASTM B392-98
Purity: Nb≥99.9%
Package: <1.5mm on spool, >1.5mm in coil
Shape: Wire in coil, on spool and straight wire
Chemical composition for our niobium
| Composition (%) | ||||||||||||
| Grade | Main Content | Impurities (≤ %) | ||||||||||
| Nb | Fe | Si | Ni | W | Mo | Ti | Ta | O | C | H | N | |
| R04200 | Bal | .004 | .004 | .002 | .005 | .005 | .002 | .05 | .012 | 0.0035 | .0012 | .003 |
| R04210 | Bal | 0.01 | .01 | .005 | .02 | .01 | .004 | .07 | .015 | .0050 | .0015 | .008 |
Mechanical requirements (annealed condition) for our niobium wire
| Grade | Tensile strength,δb psi (MPa), ≥ | Yield strength,δ0.2, psi (MPa), ≥ | Elongation in 1″/2″ gage length, %, ≥ |
| R04200-1 R04210-2 | 18000 (125) | 10500 (73) | 25 |
| Special requirements of Nb wire to be agreed on negotiations | |||
