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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
Standard
Metric

Temperature Ratings

Max Bulk/Use Temp 233°C
Max Film Temp. 255°C
Pour Point ASTM D445 -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 0.0564 %/°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 0.1015 %/°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.

Duratherm 450