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Duratherm HF

Duratherm HF

Engineered for its high flash point of 277°C (530°F) with an operating limit of 338°C (640°F), the Duratherm HF heat transfer oil offers a solution to those customers requiring the additional margin of safety needed to meet their own internal safety standards or those of their insurance carrier or government regulators.

Max. Operating Temp

338°C (640°F)

Features

  • 277°C (530°F) flash point
  • 338°C (640°F) maximum operating temperature
  • Extensive additives for extended service life
  • Strong resistance to oxidation
  • Keeps systems running clean and efficiently
  • Non-toxic and non-hazardous oil – requires no special handling
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Duratherm HF tanks

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Temperature Ratings


Max Bulk/Use Temp640°F
Max Film Temp680°F
Pour Point ASTM D9715°F

Safety Data


Flash Point ASTM D92530°F
Fire Point ASTM D92582°F
Autoignition ASTM E-659-78740°F

Physical Properties


Viscocity ASTM D445

cSt


120°F68.2
500°F1.5
640°F0.9

Density ASTM D1298

lb/ft³


120°F53.4
500°F48.6
640°F46.8

Vapor Pressure ASTM D2879

psia


120°F0
500°F0.22
640°F5.34

Distillation Range ASTM D2887


10%834°F
90%1030°F
Molecular Weight399
Specific Gravity @ 60°F0.867

Thermal Properties


Thermal Expansion Coefficient

0.0562%/°F

Thermal Conductivity

BTU/hr·ft·F°


120°F0.086
500°F0.084
640°F0.083

Heat Capacity

BTU/lb F


120°F0.453
500°F0.542
640°F0.575