Niobium Wire

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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

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