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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

TDS
(Technical Data Sheet)

SDS
(Safety Data Sheet)

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Standard

Metric

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