Pure Chromium (Cr 99.9%+) vs Pure Copper (Cu 99.95+ OFHC)
Property comparison of Pure Chromium (Cr 99.9%+) and Pure Copper (Cu 99.95+ OFHC), both pure metal.
| Property | Pure Chromium (Cr 99.9%+) | Pure Copper (Cu 99.95+ OFHC) | Difference |
|---|---|---|---|
| Yield strength | 131 MPa | 68 MPa | -48% |
| Tensile strength | 550 MPa | 220 MPa | -60% |
| Elongation | 0 % | 45 % | n/a |
| Elastic modulus | 279,000 MPa | 130,000 MPa | -53% |
| Poisson ratio | 0.21 | 0.34 | +62% |
| Density | 7,190 kg/m³ | 8,960 kg/m³ | +25% |
| Thermal conductivity | 67 W/m·K | 401 W/m·K | +499% |
| Specific heat | 460 J/kg·K | 385 J/kg·K | -16% |
| Coefficient of thermal expansion | 0.000006 1/K | 0.000017 1/K | +174% |
| Melting point | 1,875 °C | 1,085 °C | -42% |
Difference is Pure Copper (Cu 99.95+ OFHC) relative to Pure Chromium (Cr 99.9%+). Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- grade
- electrolytic chromium
- standard
- ESPI Metals chromium technical data / AZoM ArticleID 594
- heat treatment
- —
- grade
- OFHC C10200
- standard
- CRC Handbook of Chemistry and Physics (MIT matprops database)
- heat treatment
- annealed
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