Energy Industry Compression Resistant Niobium Products Niobium Pipe
Energy Industry Compression Resistant Niobium Products Niobium Pipe
Specification of Niobium pipe:
| Name: | Energy Industry Compression Resistant Niobium Products Niobium Pipe |
| Material: | RO4200-1, RO4210-2 |
| Diameter: | φ1.0-100mm |
| Thickness: | 0.2-5.0mm |
| Length: | 200mm-9000mm |
| Standard: | As per ASTM B394-98 |
| Purity: |
≧ 99.95％ |
Table 1. Grade of Niobium tube
| Grade | Suplying state | Diameter | Lengtha | Voluntary Standers |
|
Nb1 Nb2 Nb3 Nb4 |
Cold state(Y) Annealedb(M) |
3.0-6.5 >6.5-10.0 >10-18 |
>500 | ASTM BT392-03 |
|
Thermal processing state(R) Annealedb(M) |
>18-25 >25-40 >40-50 >50-65 |
|||
|
FNb1 FNb2 |
Thermal processing state(R) Annealedb(M) |
3.5-5.0 >5.0-12 |
>500 >300
|
|
| NbHf10-1 |
Thermal processing state(R) Annealedb(M) |
20-80 | 500-2000 | |
|
Note : the length of Annealing niobium tube being supplied is not greater than 2500mm.
|
||||
Table 2. Niobium tube Chemical PPM
| 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 | 0.01 | 0.004 | 0.0012 | 0.002 |
| Nb2 | Remainder | 0.005 | 0.005 | 0.005 | 0.01 | 0.01 | 0.004 | 0.1 | 0.015 | 0.01 | 0.0015 | 0.01 |
Table 3. Mechanical requirements of Niobium tube (annealed condition)
| Grade | Tensile strengthδbpsi (MPa),≥ | Yield strength δ0.2, psi (MPa),≥ | Elongation in 1"/2" gage length,%,≥ |
|
RO4200-1 RO4210-2 |
18000 (125) | 10500 (73) |
25
|
| Special requirements of niobium pipe to be agreed on by the supplier and buyer of negotiations | |||
Brief introduction of niobium pipe:
Niobium is a gray metal and its melting point is 2468 ℃, boiling point is 4742 ℃ , density is 8.57 g / cm3.
Along with the fast development of our national economy, especially the development in aerospace and energy industry, niobium is used widely.
Niobium pipe has seamless pipe and seamed pipe.
Properties of niobium pipe:
Properties of niobium pipe are similar with those of niobium, such as high melting point, good corrosion resistance, compression resistance, abrasion resistance, etc.
Applications of niobium pipe:
Niobium pipe is mainly used as spinning of thin tube blank, thermocouple cannula and other special purposes.
Sanhui Co., Ltd is one of Chinese manufacturing companies and we can manufacture niobium pipe according to buyers’ special requirements.
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