| TRADE NAME | PURITY | PARTICLE SIZE | A. D. (g/cm3) | T. D. (g/cm3) | OXYGEN | MORPHOLOGY |
|---|---|---|---|---|---|---|
| CMP | 99.5% MIN | <75 MICRONS | 2.5-2.7 | 3.6-3.8 | <0.4 % | IRREGULAR |
| TRADE NAME | PURITY | PARTICLE SIZE | A. D. (g/cm3) | T. D. (g/cm3) | OXYGEN | MORPHOLOGY |
|---|---|---|---|---|---|---|
| CMP | 99.5% MIN | <75 MICRONS | 2.5-2.7 | 3.6-3.8 | <0.4 % | IRREGULAR |
Chromium powders are produced by mainly aluminothermic and electrolytic processes.
Chromium in PM attract great interest in industry, especially in the automotive industry, because, due to the mechanical requirements for the parts, the parts are often subjected to hardening thermal treatments after sintering. Hence use of chromium powders has emerged as a consequence of the need to reduce oxidation at high sintering temperatures and to increase the hardenability.
Chromium Powders are used in other applications such as:
| Chromium | Values |
|---|---|
| Molecular Weight | 52 |
| Appearance | Silvery |
| Melting Point | 1857 °C |
| Boiling Point | 2672 °C |
| Density | 7.18 g/cm3 |
| Solubility in H2O | N/A |
| Electrical Resistivity | 12.9 microhm-cm @ 0 °C |
| Electronegativity | 1.6 Paulings |
| Heat of Fusion | 3.66 Cal/gm mole |
| Heat of Vaporization | 72.97 K-cal/gm atom at 2672 °C |
| Poisson's Ratio | 0.21 |
| Specific Heat | 0.107 Cal/g/K @ 25 °C |
| Tensile Strength | N/A |
| Thermal Conductivity | 0.939 W/cm/K @ 298.2 K |
| Thermal Expansion | (25 °C) 4.9 µm·m-1·K-1 |
| Vickers Hardness | 1060 MN m-2 |
| Young's Modulus | 279 GPa |
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