Niobium tube
Commodity: Niobium tube
Standard: ASTM B394-98
Dimension: Diameter: ¦Õ1.0-100mm
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Niobium tube , Niobium capillary tube
Size: Diameter: ¦Õ1.0-150mm
Thickness: 0.2-5.0mm
Length: 200mm-6000mm
Standard: As per ASTM B394-98
Purity: >=99.9% or 99.95%
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 |
50 |
50 |
30 |
20 |
50 |
150 |
40 |
15 |
30 |
|
Nb2 |
Remainder |
1000 |
80 |
40 |
100 |
100 |
40 |
80 |
180 |
60 |
15 |
50 |
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