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Niobium wire is a slender and soft material drawn from the metal Niobium (Nb). Due to the specific physical and chemical properties of niobium, Niobium wire has special applications in many fields.
| Grades | R04200, R04210 |
| Standard | ASTM B 392 |
| Straight | Dia.: 1.0mm-5.0mm ( tolerance: +/-0.05mm ) |
| Coiled | Dia.: 0.05mm-5.0mm ( tolerance: +/-0.05mm ) |
| Length | Coils or Customers’ Requests |
| Surface | Black, Pickled, Polished ( For Dia. >1mm ) |
| Packing | Standard seaworthy packages or as your requests |
| Chemistry% | ||||||||||||
| Designation | Chief component | Impurities maxmium | ||||||||||
| Nb | Fe | Si | Ni | W | Mo | Ti | Ta | O | C | H | N | |
| Nb1 | Remainder | 0.004 | 0.003 | 0.002 | 0.004 | 0.004 | 0.002 | 0.07 | 0.015 | 0.004 | 0.0015 | 0.002 |
| Nb2 | Remainder | 0.02 | 0.02 | 0.005 | 0.02 | 0.02 | 0.005 | 0.15 | 0.03 | 0.01 | 0.0015 | 0.01 |
Standard Specification Niobium rod + Niobium Alloy Rod + Niobium Wire + Niobium Alloy Wire:
ASTM B 392 -03 UNS R04200 -Type 1, Reactor grade unalloyed niobium;
ASTM B 392 -03 UNS R04210 -Type 2, Commercial grade unalloyed niobium;
ASTM B 392 -03 UNS R04251 -Type 3, Reactor grade niobium alloy containing 1% zirconium;
ASTM B 392 -03 UNS R04261 -Type 4, Commercial grade niobium alloy containing 1% zirconium.
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