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A food grade heat transfer oil rated to 277°C (530°F), Duratherm HF-FG is specifically engineered for process heating and cooling applications that need the added safety of a high flash point. Economical and thermally stable, it meets USDA requirements for incidental food contact, is NSF registered HT1, and meets the requirements of 21 CFR 178.3570.
| Temerature Ratings | |
|---|---|
| Maximum Bulk/Use Temp | 338°C |
| Maximum Film Temp | 360°C |
| Pour Point ASTM D445 | -9°C |
| Safety Data | |
|---|---|
| Flash Point ASTM D92 | 277°C |
| Fire Point ASTM D92 | 306°C |
| Auto Ignition ASTM E-659-78 | 394°C |
| Thermal Properties | |
|---|---|
| Thermal Expansion Coefficient | 0.182 %/°C |
| Thermal Conductivity | W/m·K |
| 38°C | 0.149 |
| 204°C | 0.145 |
| 260°C | 0.145 |
| 288°C | 0.144 |
| 316°C | 0.144 |
| 332°C | 0.144 |
| Heat Capacity | kJ/kg·K |
| 38°C | 1.876 |
| 204°C | 2.168 |
| 260°C | 2.269 |
| 288°C | 2.319 |
| 316°C | 2.366 |
| 332°C | 2.394 |
| Physical Properties | |
|---|---|
| Viscosity ASTM D445 | cSt |
| 40°C | 104.26 |
| 100°C | 12.46 |
| 260°C | 1.47 |
| 288°C | 1.22 |
| 316°C | 1.04 |
| 332°C | 0.96 |
| Density ASTM D1298 | d/ml |
| 38°C | 0.859 |
| 204°C | 0.798 |
| 260°C | 0.778 |
| 288°C | 0.768 |
| 316°C | 0.758 |
| 332°C | 0.752 |
| Vapour Pressure ASTM D2879 | kPa |
| 38°C | 0 |
| 204°C | 0.138 |
| 260°C | 1.517 |
| 288°C | 4.206 |
| 316°C | 11.997 |
| 332°C | 24.601 |
| Distillation Range ASTM D2887 | |
| 10% | 446°C |
| 90% | 555°C |
| Average Molecular Weight | 399 |
| Specific Gravity @ 16°C | .867 |
Note: The values quoted in the table above are typical of normal production.
They do not constitute a specification.
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