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ATI Wah Chang Niobium
| Category | Metal , Nonferrous Metal , Pure Element |
| Manufacturer | ATI Wah Chang |
| Trade Name | |
| Port | Shanghai port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | ATI Wah Chang Niobium.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Niobium is a soft, ductile metal which can be cold worked over 90 percent before annealing becomes necessary. In appearance, the metal is somewhat similar to stainless steel. The density of 8.57 gm/cc is moderate compared to the majority of the high melting point metals, being less than molybdenum at 10.2 gm/cc and only half that of tantalum at 16.6 gm/cc. Information provided by ATI Wah Chang
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 8.58 g/cc | 0.310 lb/in³ | |
| a Lattice Constant | 3.30 Å | 3.30 Å |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Hardness, Vickers | 60 - 100 | 60 - 100 | |
| Modulus of Elasticity | 103 GPa | 14900 ksi | |
| Poissons Ratio | 0.38 | 0.38 | |
| Shear Modulus | 37.3 GPa | 5410 ksi | Calculated |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 7.10 µm/m-°C @Temperature 20.0 °C |
3.94 µin/in-°F @Temperature 68.0 °F |
|
| Specific Heat Capacity | 0.320 J/g-°C @Temperature 1227 °C |
0.0765 BTU/lb-°F @Temperature 2241 °F |
|
| Thermal Conductivity | 52.22 W/m-K @Temperature 0.000 °C |
362.4 BTU-in/hr-ft²-°F @Temperature 32.0 °F |
|
| 68.92 W/m-K @Temperature 1600 °C |
478.3 BTU-in/hr-ft²-°F @Temperature 2910 °F |
||
| Melting Point | 2468 °C | 4474 °F | |
| Boiling Point | 4927 °C | 8901 °F | |
| Brittleness Temperature | -150 °C | -238 °F |
| Electrical Properties | Metric | English | Comments |
|---|---|---|---|
| Electrical Resistivity | 0.0000150 ohm-cm | 0.0000150 ohm-cm |
| Chemical Properties | Metric | English | Comments |
|---|---|---|---|
| Covalent Radius | 1.34 | 1.34 | |
| Electronegativity | 1.6 | 1.6 | Pauling`s |
| Processing Properties | Metric | English | Comments |
|---|---|---|---|
| Recrystallization Temperature | 900 - 1300 °C | 1650 - 2370 °F |
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