| Niobium Rod 99.99% (4N) Purity , ASTM B392-99
Application: Niobium mechanical parts, electric materials, high voltage sodiumlamp
Grade:RO4200,RO4210
Purity: 99.95%(3N5)-99.99%(4N)
Manufacturing Standard: ASTM B392-99
Specifications
Metallic impurities, ppm max by weight, Balance - Niobium
|
Element
|
Fe
|
Mo
|
Ta
|
Ni
|
Si
|
W
|
Zr
|
Hf
|
|
Content
|
50
|
100
|
1000
|
50
|
50
|
300
|
200
|
200
|
Non-Metallic impurities, ppm max by weight
|
Element
|
C
|
H
|
O
|
N
|
|
Content
|
100
|
15
|
150
|
100
|
Mechanical properties for annealed rods 0.125in(3.13mm)-2.5in(63.5mm)
|
Ultimate Tensile Strength (MPa)
|
125
|
|
Yield strength (MPa, 2% offeset)
|
73
|
|
Elongation(%, 1-in gage length)
|
25
|
Dimensional Tolerance for Rods and Wires
|
Diameter in (mm)
|
Tolerance in (±mm)
|
|
0.020-0.030(0.51-0.76)
|
0.00075(0.019)
|
|
0.030-0.060(0.76-1.52)
|
0.001(0.025)
|
|
0.060-0.090(1.52-2.29)
|
0.0015(0.038)
|
|
0.090-0.125(2.29-3.18)
|
0.002(0.051)
|
|
0.125-0.187(3.18-4.75)
|
0.003(0.076)
|
|
0.187-0.375(4.75-9.53)
|
0.004(0.102)
|
|
0.375-0.500(9.53-12.7)
|
0.005(0.127)
|
|
0500-0.625(12.7-15.9)
|
0.007(0.178)
|
|
0.625-0.750 (15.9-19.1)
|
0.008(0.203)
|
|
0.750-1.000 (19.1-25.4)
|
0.010(0.254)
|
|
1.000-1.500 (25.4-38.1)
|
0.015(0.381)
|
|
1.500-2.000 (38.1-50.8)
|
0.020(0.508)
|
|
2.000-2.500 (50.8-63.5)
|
0.030(0.762)
|
| 