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Duratherm G

Duratherm G is a glycol based thermal fluid rated to 260°C (500°F), a proprietary additive system that not only helps the fluid last longer and run cleaner, it makes it the ideal choice for extreme oxidation environments including demanding, open bath applications.

260°C (500°F) maximum operating temperature
High flash point of 249°C (480°F)
Ideal for use in extreme oxidation environments like open baths
Polyalkylene glycol based thermal fluid with enhanced performance

TDS
(Technical Data Sheet)

SDS
(Safety Data Sheet)

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Standard

Metric

Temperature Ratings
Max Bulk/Use Temp	260°C
Max Film Temp.	288°C
Pour Point ASTM D97	-40°C

Safety Data
Flash Point ASTM D92	249°C
Fire Point ASTM D92	263°C
Autoignition ASTM E-659-78	366°C

Thermal Properties
Thermal Expansion Coefficient	0.0679 %/°C
Thermal Conductivity	W/m·K
38°C	0.182
100°C	0.175
204°C	0.165
204°C	0.164
260°C	0.159
Heat Capacity	kJ/kg·K
38°C	1.976
100°C	2.043
204°C	2.153
204°C	2.152
260°C	2.211

Physical Properties
Viscosity ASTM D445	cSt
40°C	42.16
100°C	7.43
204°C	1.88
204°C	1.87
260°C	1.23
Density ASTM D1298	kg/l
38°C	0.92
100°C	0.90
204°C	0.87
204°C	0.87
260°C	0.86
Vapor Pressure ASTM D2879	kPa
38°C	0.28
100°C	0.88
204°C	2.40
204°C	2.41
260°C	3.52
Distillation Range ASTM D2887
10%	368°C
90%	514°C
Specific Gravity @ 16°C	0.963

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	500°F
Max Film Temp.	550°F
Pour Point ASTM D445	-40°F

Safety Data
Flash Point ASTM D92	480°F
Fire Point ASTM D92	505°F
Autoignition ASTM E-659-78	690°F

Thermal Properties
Thermal Expansion Coefficient	0.0377 %/°F
Thermal Conductivity	BTU/hr·ft·F°
100°F	0.105
212°F	0.101
399°F	0.095
500°F	0.092
Heat Capacity	BTU/lb·F°
100°F	0.472
212°F	0.488
399°F	0.514
500°F	0.528

Physical Properties
Viscosity ASTM D445	cSt
40°F	262.67
100°F	46.07
260°F	4.71
Density ASTM D1298	lb/ft³
100°F	57.46
212°F	56.35
399°F	54.53
500°F	53.54
Vapor Pressure ASTM D2879	psia
100°F	0.04
212°F	0.13
399°F	0.35
500°F	0.51
Distillation Range ASTM D2887
10%	694°F
90%	957°F
Specific Gravity @ 60°F	0.963