Niobium
Niobium is a kind of silver grey rear high-melting-point metal with relatively soft texture and ductility. At normal temperature, niobium cannot react with the air, and cannot be completely oxidized in oxygen in the red hot state. Niobium can be directly and chemically combined with sulfur, nitrogen and carbon at high temperature. Niobium cannot react with inorganic acid or alkali, and is insoluble in aqua regia but is soluble in hydrofluoric acid. Niobium features extremely good superconductivity, high melting point, corrosion resistance, wear resistance, etc.
Tolerance：
|
Thickness(mm) |
Tolerance |
Width |
Tolerance |
Length |
Tolerance |
|
|
Grade I |
Grade II |
|||||
|
0.15~0.2 |
±0.015 |
±0.02 |
50-500 |
±2.0 |
100-2000 |
±2.0 |
|
＞0.2~0.3 |
±0.020 |
±0.03 |
50-700 |
±2.0 |
100-2500 |
±2.0 |
|
＞0.3~0.5 |
±0.030 |
±0.04 |
50-700 |
±2.0 |
100-2500 |
±2.0 |
|
＞0.5~0.8 |
±0.040 |
±0.06 |
50-700 |
±1.0 |
50-2500 |
±2.0 |
|
＞0.8~1.0 |
±0.060 |
±0.08 |
50-700 |
±1.0 |
50-2500 |
±2.0 |
|
＞1.0~1.5 |
±0.080 |
±0.10 |
50-700 |
±1.0 |
50-2500 |
±2.0 |
|
＞1.5~2.0 |
±0.120 |
±0.14 |
50-700 |
±1.0 |
50-2000 |
±2.0 |
|
＞2.0~3.0 |
±0.160 |
±0.18 |
50-700 |
±1.0 |
50-2000 |
±2.0 |
|
＞3.0~4.0 |
±0.180 |
±0.20 |
50-700 |
±1.0 |
50-1500 |
±1.0 |
|
＞4.0~6.0 |
±0.200 |
±0.24 |
50-700 |
±1.0 |
50-1000 |
±1.0 |
|
The thickness deviation of thin plates with the width of more than 24 inches should be ±10% of the thickness. |
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▲Iron & steel, superconducting materials, aerospace, atomic energy and other fields.
▲Magnetron sputtering niobium targets in the electronic industry.
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