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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
Standard
Metric

Temperature Ratings

Max Bulk/Use Temp 260°C
Max Film Temp. 288°C
Pour Point ASTM D445 -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 0.0377 %/°C
Thermal Conductivity W/m·K
38°C 0.182
100°C 0.175
204°C 0.165
260°C 0.159
Heat Capacity kJ/kg·K
38°C 1.976
100°C 2.043
204°C 2.153
260°C 2.211

Physical Properties

Viscosity ASTM D445 cSt
40°C 42.16
100°C 7.43
204°C 1.88
260°C 1.23
Density ASTM D1298 kg/l
38°C 0.92
100°C 0.90
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
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 0.0679 %/°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

Note: The values quoted in the table above are typical of normal production.
They do not constitute a specification.

Duratherm G