devices niobium plate
Product Description 
size  1.2*750*1110mm
extensive standard ASTM B521
melting point: 2468 degree centigrade
Boiling point: 4742 degree centigrade
density: 8.57 grams per cubic centimeter
Material: RO4200-1, RO4210-2
Product Features  
1.Low Density and High Specificate Strength
2.Excellent Corrosion Resistance
3.Good resistance to effect of heat
4.high melting point, good anti-corrosion, excellent super-conduction and other unique characteristics,
5.widely used in manufacturing various kinds of alloy steel, high temperature alloy, optical glass, cutting tool, electronics and superconducting materials and other industries.
Chemical composition:
| 
Chemistry                                                                % | 
| 
Designation | 
Chief component | 
Impurities   maximum | 
| 
 | 
Nb | 
Fe | 
Si | 
Ni | 
W | 
Mo | 
Ti | 
Ta | 
O | 
C | 
H | 
N | 
| 
Nb1 | 
Remainder | 
0.004 | 
0.003 | 
0.002 | 
0.004 | 
0.004 | 
0.002 | 
0.07 | 
0.015 | 
0.004 | 
0.0015 | 
0.002 | 
| 
Nb2 | 
Remainder | 
0.02 | 
0.02 | 
0.005 | 
0.02 | 
0.02 | 
0.005 | 
0.15 | 
0.03 | 
0.01 | 
0.0015 | 
0.01 | 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
 Mechanical requirements (annealed condition)
| 
 Grade | 
Tensile strength  δbpsi (MPa), ≥   | 
Yield strength  δ0.2, psi (MPa),≥ | 
 Elongation in 1"/2" gage length, %, ≥ | 
| 
RO4200-1 
RO4210-2 | 
18000 (125) | 
12000 (85) | 
                         25 
 | 
 
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