| All data is for information only------(<---links) | |
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| PRODUCT DATA of Chromium |
| Material | Chromium |
| Chemical Composition | 100Cr |
| CAS Registry ID | 7440-47-3 |
| EXPERIENCE IN PRACTICE |
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| Development Status | Commercial Product |
| Cost Range | Medium |
| Equivalent Designations | Cr |
| Space Experience | Very Good |
| PHYSICAL PROPERTIES |
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| Atomic Number | 24 |
| Atomic Weight | 52 amu |
| Work Function | 4.4 eV |
| Crystal Structure | Body centered cubic (bcc) |
| Specific Gravity | 7.2 |
| ELASTIC PROPERTIES |
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| Tensile Modulus | 290 GPa |
| Shear Modulus | 115 GPa |
| Bulk Modulus | 160 GPa |
| Poisson Ratio | 0.21 |
| Speed of Sound (longitudinal) | 5940 m/s |
| ELECTRICAL PROPERTIES |
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| Electrical Volume Resistivity | 1.32e-7 ohm.m |
| THERMAL PROPERTIES |
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| Thermal Conductivity | 85 W/m.K |
| Melting Range | 1860 °C |
| RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY |
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| Atmospheric Corrosion | The oxidation film is adherent up to about 900-950C. After oxidation at higher temperature the oxide film flakes off on cooling |
| EMF vs SCE | -0.31 V Remark: Measured in 3.5% NaCl solution Data Quality: Design Data |