Commodity: Niobium wire Standard: ASTM B392-98Dimension: ¡é0.3-4mmMaterial: RO4200-1, RO4210-2ASize: ¡é0.3~¡é4mmStandard: As per ASTM B392-98Purity: ¡Ý 99.9%
Table.1 Chemical composition:
Chemistry PPM
Designation
Chief component
Impurities maxmium
Nb
Ta
Si
Ni
W
Mo
Ti
Fe
O
C
H
N
Nb1
Remainder
700
50
30
20
150
40
15
Nb2
1000
80
100
180
60
Table 2. Mechanical requirements (annealed condition)
Grade
Tensile strength ¦Äb psi (MPa), ¡Ý
Yield strength ¦Ä0.2, psi (MPa),¡Ý
Elongation in 1"/2" gage length, %, ¡Ý
RO4200-1
18000 (125)
12000 (85)
25
RO4210-2
Special requirements to be agreed on by the supplier and buyer of negotiations