Niobium wire, as the name suggests, is a filament-like material made of niobium element. Niobium is a metallic element with chemical symbol Nb and atomic number 41. It is located in the VB group of the fifth period of the periodic table of elements. The density of niobium is 8.57g/cm3, the melting point is 2468°C, and it has a high melting point and hardness. Pure niobium is a silver-white metal with good corrosion resistance and biocompatibility.
Niobium wire details
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.
Due to niobium's high reactivity and processing difficulty, the production of niobium wire usually requires special technology and equipment. In addition, niobium wire and its products are generally more expensive due to its rarity and refining costs. With the advancement of technology, the application of niobium wire may be further expanded, especially in high-tech fields that require extreme environmental stability.
