Duratherm 630
Rated to 332°C (630°F) and engineered to be an economical and environmentally friendly replacement to chemical aromatic thermal fluids, Duratherm 630’s enhanced blend is designed to offer years of trouble free service and superior protection from oxidation even at higher operating temperatures.
Max. Operating Temp
332°C (630°F)
Features
- 332°C (630°F) maximum operating temperature
- Clean alternative to synthetic, benzene based thermal fluids
- Engineered for precise temperature control
- Lubricates and extends the life of gaskets and seals
- Superior protection against sludge formation
- Non-toxic, non-hazardous
Temperature Ratings
| Max Bulk/Use Temp | 630°F |
| Max Film Temp | 670°F |
| Pour Point ASTM D97 | -1°F |
Safety Data
| Flash Point ASTM D92 | 444°F |
| Fire Point ASTM D92 | 472°F |
| Autoignition ASTM E-659-78 | 693°F |
Physical Properties
Viscocity ASTM D445
cSt
| 45°F | 262.1 |
| 115°F | 32.8 |
| 405°F | 1.6 |
| 630°F | 0.7 |
Density ASTM D1298
lb/ft³
| 45°F | 54.6 |
| 115°F | 52.9 |
| 405°F | 46.1 |
| 630°F | 40.8 |
Vapor Pressure ASTM D2879
psia
| 45°F | 0 |
| 115°F | 0 |
| 405°F | 0.06 |
| 630°F | 2.04 |
Distillation Range ASTM D2887
| 10% | 721°F | 90% | 921°F |
| Molecular Weight | 395 |
| Specific Gravity @ 60°F | 0.864 |
Thermal Properties
Thermal Expansion Coefficient
0.0562%/°F
Thermal Conductivity
BTU/hr·ft·F°
| 45°F | 0.084 |
| 115°F | 0.083 |
| 405°F | 0.077 |
| 630°F | 0.073 |
Heat Capacity
BTU/lb F
| 45°F | 0.451 |
| 115°F | 0.482 |
| 405°F | 0.609 |
| 630°F | 0.707 |