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Duratherm 450
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Duratherm 450
Rated to 233°C (450°F), Duratherm 450 is specifically engineered for applications requiring a thermal fluid capable of efficient process heating and cooling. Economical and thermally stable, it provides precise temperature control and is proven to be an excellent alternative to costly synthetics and aromatic fluids.
233°C (450°F) maximum operating temperature while cooling properties
Cold temperature pumpability down to -45°C (-49°F)
Recommended for precise control of heating and cooling cycles
Economical alternative to costly synthetics and aromatics
Long lasting and environmentally friendly
Uses a dual-stage anti-oxidant to resist oxidation
Temperature Ratings
Max Bulk/Use Temp
233°C
Max Film Temp.
255°C
Pour Point ASTM D97
-45°C
Safety Data
Flash Point ASTM D92
150°C
Fire Point ASTM D92
164°C
Autoignition ASTM E-659-78
330°C
Thermal Properties
Thermal Expansion Coefficient
0.1015 %/°C
Thermal Conductivity
W/m·K
-40°C
0.147
-18°C
0.147
38°C
0.142
100°C
0.138
204°C
0.130
Heat Capacity
kJ/kg·K
-40°C
1.905
-18°C
1.974
38°C
2.144
100°C
2.331
204°C
2.649
Physical Properties
Viscosity ASTM D445
cSt
-40°C
104.00
-18°C
29.81
40°C
4.62
100°C
1.78
204°C
0.77
Density ASTM D1298
kg/l
-40°C
0.91
-18°C
0.89
38°C
0.85
100°C
0.81
204°C
0.74
Vapor Pressure ASTM D2879
kPa
-40°C
0.00
-18°C
0.00
38°C
0.55
100°C
1.48
204°C
11.60
Distillation Range ASTM D2887
10%
263°C
90%
509°C
Molecular Weight
372
Note: The values quoted in the table above are typical of normal production. They do not constitute a specification.
Temperature Ratings
Max Bulk/Use Temp
450°F
Max Film Temp.
490°F
Pour Point ASTM D445
-49°F
Safety Data
Flash Point ASTM D92
302°F
Fire Point ASTM D92
327°F
Autoignition ASTM E-659-78
625°F
Thermal Properties
Thermal Expansion Coefficient
0.0564 %/°F
Thermal Conductivity
BTU/hr·ft·F°
-40°F
0.085
0°F
0.085
100°F
0.082
212°F
0.080
399°F
0.075
Heat Capacity
BTU/lb·F°
-40°F
0.455
0°F
0.472
100°F
0.512
212°F
0.557
399°F
0.633
Physical Properties
Viscosity ASTM D445
cSt
-40°F
104.00
40°F
11.95
100°F
4.84
Density ASTM D1298
lb/ft³
-40°F
56.53
0°F
55.58
100°F
53.21
212°F
50.56
399°F
46.12
Vapor Pressure ASTM D2879
psia
-40°F
0.00
0°F
0.00
100°F
0.08
212°F
0.21
399°F
1.68
Distillation Range ASTM D2887
10%
505°F
90%
947°F
Molecular Weight
372
Note: The values quoted in the table above are typical of normal production. They do not constitute a specification.