| Erbium, Er | |
|---|---|
| Categories: | MetalNonferrous MetalPure Element |
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Export data to your CAD/FEA program| Physical Properties | Metric | English | Comments | ||
|---|---|---|---|---|---|
| Density | 9.05 g/cc | 0.327 lb/in³ | |||
| Chemical Properties | Metric | English | Comments | ||
| Atomic Mass | 167.26 | 167.26 | 1995 | ||
| Atomic Number | 68 | 68 | |||
| X-ray Absorption Edge | 0.21565 Å | 0.21565 Å | K | ||
| 1.27086 Å | 1.27086 Å | LI | |||
| 1.33721 Å | 1.33721 Å | LII | |||
| 1.48242 Å | 1.48242 Å | LIII | |||
| Electronegativity | 1.24 | 1.24 | Pauling | ||
| Ionic Radius | 0.881 Å | 0.881 Å | Crystal Ionic Radius for Valence +3 | ||
| Mechanical Properties | Metric | English | Comments | ||
| Hardness, Vickers | 42 | 42 | |||
| Tensile Strength, Ultimate | 136 MPa | 19700 psi | |||
| Tensile Strength, Yield | 60.0 MPa | 8700 psi | |||
| Elongation at Break | 11.5 % | 11.5 % | |||
| Reduction of Area | 11.9 % | 11.9 % | |||
| Tensile Modulus | 69.9 GPa | 10100 ksi | |||
| Bulk Modulus | 44.4 GPa | 6440 ksi | |||
| Poissons Ratio | 0.237 | 0.237 | |||
| Shear Modulus | 28.3 GPa | 4100 ksi | |||
| Electrical Properties | Metric | English | Comments | ||
| Electrical Resistivity | 0.0000850 ohm-cm | 0.0000850 ohm-cm | |||
| Magnetic Susceptibility | 0.000264 | 0.000264 | cgs/g | ||
| Curie Temperature | -253 °C | -423 °F | |||
| Thermal Properties | Metric | English | Comments | ||
| Heat of Fusion | 103 J/g | 44.3 BTU/lb | |||
| CTE, linear | 12.2 µm/m-°C @Temperature 20.0 °C | 6.78 µin/in-°F @Temperature 68.0 °F | |||
| Specific Heat Capacity | 0.170 J/g-°C | 0.0406 BTU/lb-°F | |||
| Thermal Conductivity | 9.60 W/m-K | 66.6 BTU-in/hr-ft²-°F | |||
| Melting Point | 1522 °C | 2772 °F | |||
| Boiling Point | 2868 °C | 5194 °F | |||
| Optical Properties | Metric | English | Comments | ||
| Emissivity (0-1) | 0.372 @Wavelength >=645 nm, Temperature 1027 – 1587 °C | 0.372 @Wavelength >=645 nm, Temperature 1881 – 2889 °F | solid and liquid | ||
| Component Elements Properties | Metric | English | Comments | ||
| Erbium, Er | 100 % | 100 % | |||
| Descriptive Properties | |||||
| CAS Number | 7440-52-0 | ||||
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