High Performance Heat Transfer Oils
ISO Vis. Grades : 32, 46
Duratherm ST, heat transfer oils are produced from highly refined mineral base oils of intrinsic thermal and oxidation stability that is further boosted with highly effective inhibitors. They have a higher degree of heat transfer coefficient. Do not undergo thermal degradation, do not form sludge or deposits during use in the specified temperature range from -10 °C upto 320 °C. Can be used in all type of closed hot oil circulation systems used in the industry. Excellent thermal and oxidation stability assures trouble free longer operation.
| DIN | 51522 Q | ISO | 6743-12-Q |
| ISO Vis. Grades | 32 | 46 | |
| Property | Values | Values | Method |
| Viscosity, 40 °C, cSt. | 33 | 47 | ASTM D445 |
| Viscosity, 100 °C, cSt. | 5,4 | 6,8 | ASTM D445 |
| Viscosity Index | 100 | 98 | ASTM D2270 |
| Density, g/cm3 15 °C de | 0,873 | 0,877 | ASTM D1298 |
| Flash Point °C | 200 | 210 | ASTM D92 |
| Pour Point °C | -12 | -12 | ASTM D97 |
| Nötralizasyon Değeri, mg KOH/g | 0,05 | 0,05 | ASTM D664 |
| İlk Boiling Point °C | 320 | 326 | ASTM D1160 |
| Isı İletim Katsayısı 200 °C (kal/m.h. °C) | 0,103 | 0,103 | |
| Isı İletim Katsayısı 300 °C (kal/m.h. °C) | 0,097 | 0,097 | |
| Özgül Isı 200 °C (kal/kg °C) | 0,605 | 0,605 | |
| Özgül Isı 300 °C (kal/kg °C) | 0,692 | 0,692 |
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