| Chromium, Cr; As-Swaged | |
|---|---|
| Categories: | MetalNonferrous MetalPure Element |
| Material Notes: | As-swaged applies only to tensile and/or hardness values; other property values are typical of the element. |
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Export data to your CAD/FEA program| Physical Properties | Metric | English | Comments | ||
|---|---|---|---|---|---|
| Density | 7.19 g/cc | 0.260 lb/in³ | |||
| Chemical Properties | Metric | English | Comments | ||
| Atomic Mass | 51.9961 | 51.9961 | 1995 | ||
| Atomic Number | 24 | 24 | |||
| Thermal Neutron Cross Section | 2.9 barns/atom | 2.9 barns/atom | |||
| X-ray Absorption Edge | 2.07 Å | 2.07 Å | K | ||
| 18.256 Å | 18.256 Å | LI | |||
| 21.226 Å | 21.226 Å | LII | |||
| 21.5958 Å | 21.5958 Å | LIII | |||
| Electrode Potential | -0.560 V | -0.560 V | |||
| Electronegativity | 1.66 | 1.66 | Pauling | ||
| Ionic Radius | 0.520 Å | 0.520 Å | Crystal Ionic Radius for Valence +6 | ||
| 0.630 Å | 0.630 Å | Crystal Ionic Radius for Valence +3 | |||
| 0.810 Å | 0.810 Å | Crystal Ionic Radius for Valence +1 | |||
| 0.890 Å | 0.890 Å | Crystal Ionic Radius for Valence +2 | |||
| Electrochemical Equivalent | 0.971 g/A/h | 0.971 g/A/h | |||
| Mechanical Properties | Metric | English | Comments | ||
| Hardness, Brinell | 125 | 125 | |||
| Hardness, Knoop | 144 | 144 | Converted from Brinell | ||
| Hardness, Rockwell B | 72 | 72 | Converted from Brinell | ||
| Hardness, Vickers | 131 | 131 | Converted from Brinell | ||
| Tensile Strength, Ultimate | 413 MPa | 59900 psi | |||
| Tensile Strength, Yield | 362 MPa | 52500 psi | |||
| Elongation at Break | 44 % | 44 % | |||
| Charpy Impact, Unnotched | 2.00 J | 1.48 ft-lb | Unspecified Heat Treatment. | ||
| Electrical Properties | Metric | English | Comments | ||
Electrical Resistivity  | 5.00e-7 ohm-cm @Temperature -260 °C | 5.00e-7 ohm-cm @Temperature -436 °F | |||
| 0.0000130 ohm-cm @Temperature 20.0 °C | 0.0000130 ohm-cm @Temperature 68.0 °F | ||||
| 0.0000180 ohm-cm @Temperature 152 °C | 0.0000180 ohm-cm @Temperature 306 °F | ||||
| 0.0000200 ohm-cm @Temperature 200 °C | 0.0000200 ohm-cm @Temperature 392 °F | ||||
| 0.0000310 ohm-cm @Temperature 407 °C | 0.0000310 ohm-cm @Temperature 765 °F | ||||
| 0.0000400 ohm-cm @Temperature 600 °C | 0.0000400 ohm-cm @Temperature 1110 °F | ||||
| 0.0000470 ohm-cm @Temperature 652 °C | 0.0000470 ohm-cm @Temperature 1210 °F | ||||
| 0.0000660 ohm-cm @Temperature 1000 °C | 0.0000660 ohm-cm @Temperature 1830 °F | ||||
| Magnetic Susceptibility | 0.0000035 | 0.0000035 | cgs/g | ||
| Thermal Properties | Metric | English | Comments | ||
| Heat of Fusion | 293.1 J/g | 126.1 BTU/lb | |||
| Heat of Vaporization | 5945 J/g | 2558 BTU/lb | |||
| CTE, linear | 6.20 µm/m-°C @Temperature 20.0 – 100 °C | 3.44 µin/in-°F @Temperature 68.0 – 212 °F | |||
| Specific Heat Capacity | 0.461 J/g-°C | 0.110 BTU/lb-°F | |||
| Thermal Conductivity | 69.1 W/m-K | 480 BTU-in/hr-ft²-°F | |||
| Melting Point | 1860 °C | 3380 °F | |||
| Boiling Point | 2671 °C | 4840 °F | |||
| Optical Properties | Metric | English | Comments | ||
| Emissivity (0-1) | 0.10 @Temperature 50.0 °C | 0.10 @Temperature 122 °F | polished, total radiation | ||
| Reflection Coefficient, Visible (0-1) | 0.70 | 0.70 | 500 nm | ||
| Component Elements Properties | Metric | English | Comments | ||
| Chromium, Cr | 100 % | 100 % | |||
| Descriptive Properties | |||||
| CAS Number | 7440-47-3 | ||||
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