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Niobium Wire (Nb Wire)

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%, 99.95%
Package: <1.5mm on spool, >1.5mm in coil

Chemical composition for our Niobium wire:

Composition (%)
Grade Main Content Impurities (≤ %)
Nb Fe Si Ni W Mo Ti Ta O C H N
Nb1 Remainder 0.004 0.004 0.002 0.005 0.005 0.002 0.05 0.012 0.0035 0.0012 0.003
Nb2 Remainder 0.01 0.01 0.005 0.02 0.01 0.004 0.07 0.015 0.0050 0.0015 0.008

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 niobium wire to be agreed on negotiations

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