| Iridium, Ir; Cold-Drawn | |
|---|---|
| Categories: | MetalNonferrous MetalPrecious MetalPure Element |
| Material Notes: | Cold-drawn applies only to tensile and/or hardness values; other property values are typical of the element. Physical Form: Silver-White Metal; Cubic See entry for annealed samples. |
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Export data to your CAD/FEA program| Physical Properties | Metric | English | Comments | ||
|---|---|---|---|---|---|
| Density | 22.65 g/cc | 0.8183 lb/in³ | |||
| Chemical Properties | Metric | English | Comments | ||
| Atomic Mass | 192.217 | 192.217 | 1995 | ||
| Atomic Number | 77 | 77 | |||
| Thermal Neutron Cross Section | 440 barns/atom | 440 barns/atom | |||
| X-ray Absorption Edge | 0.16286 Å | 0.16286 Å | K | ||
| 0.92425 Å | 0.92425 Å | LI | |||
| 0.967 Å | 0.967 Å | LII | |||
| 1.10599 Å | 1.10599 Å | LIII | |||
| Electrode Potential | 1.0 V | 1.0 V | |||
| Electronegativity | 2.2 | 2.2 | Pauling | ||
| Ionic Radius | 0.680 Å | 0.680 Å | Crystal Ionic Radius for Valence +4 | ||
| Mechanical Properties | Metric | English | Comments | ||
| Hardness, Brinell | 565 | 565 | Converted from Vickers for 3000 kg load/10 mm ball Brinell test. | ||
| Hardness, Rockwell A | 80 | 80 | Converted from Vickers. | ||
| Hardness, Rockwell C | 56 | 56 | Converted from Vickers. | ||
| Hardness, Vickers | 650 | 650 | |||
| Tensile Strength, Ultimate | 2000 MPa | 290000 psi | |||
| Modulus of Elasticity | 524 GPa | 76000 ksi | |||
| Poissons Ratio | 0.26 | 0.26 | |||
| Shear Modulus | 208 GPa | 30200 ksi | Calculated | ||
| Electrical Properties | Metric | English | Comments | ||
| Electrical Resistivity | 0.00000470 ohm-cm | 0.00000470 ohm-cm | |||
| Magnetic Susceptibility | 1.5e-7 | 1.5e-7 | cgs/g | ||
| Critical Magnetic Field Strength, Oersted | 15.95 – 16.05 | 15.95 – 16.05 | |||
| Critical Superconducting Temperature | 0.1115 – 0.1135 K | 0.1115 – 0.1135 K | |||
| Thermal Properties | Metric | English | Comments | ||
| Heat of Fusion | 144 J/g | 61.9 BTU/lb | |||
| Heat of Vaporization | 636 J/g | 274 BTU/lb | |||
| CTE, linear | 6.80 µm/m-°C @Temperature 20.0 °C | 3.78 µin/in-°F @Temperature 68.0 °F | |||
| Specific Heat Capacity | 0.1082 J/g-°C | 0.02586 BTU/lb-°F | Gas | ||
| 0.135 J/g-°C | 0.0323 BTU/lb-°F | ||||
| Thermal Conductivity | 147 W/m-K | 1020 BTU-in/hr-ft²-°F | |||
| Melting Point | 2443 °C | 4429 °F | |||
| Boiling Point | 4428 °C | 8002 °F | |||
| Heat of Formation | 0.000 kJ/mol | 0.000 kJ/mol | Crystal | ||
| 665.3 kJ/mol | 665.3 kJ/mol | Gas | |||
| Optical Properties | Metric | English | Comments | ||
| Emissivity (0-1) | 0.30 | 0.30 | 650 nm, unoxidized | ||
| Component Elements Properties | Metric | English | Comments | ||
| Iridium, Ir | 100 % | 100 % | |||
| Descriptive Properties | |||||
| CAS Number | 7439-88-5 | ||||
| Solubility | Soluble in Aqua Regia | ||||
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