PRODUCTS

Duratherm HTO

Engineered for precise and efficient temperature control up to 316°C (600°F), our HTO thermal fluid is a budget-wise solution for any heat transfer fluid applications that want an environmentally friendly, low cost fluid capable of meeting today’s fast-paced production demands.

316°C (600°F) maximum operating temperature
An economical option that outlasts the competition
Environmentally friendly, non-hazardous and non-reportable
Excellent thermal stability
Contains antioxidants for added protection from oxidation

TDS
(Technical Data Sheet)

SDS
(Safety Data Sheet)

Get Quote

Standard

Metric

Temperature Ratings
Max Bulk/Use Temp	316°C
Max Film Temp.	332°C
Pour Point ASTM D97	-15°C

Safety Data
Flash Point ASTM D92	218°C
Fire Point ASTM D92	231°C
Autoignition ASTM E-659-78	360°C

Thermal Properties
Thermal Expansion Coefficient	0.1011 %/°C
Thermal Conductivity	W/m·K
38°C	0.137
204°C	0.128
260°C	0.125
288°C	0.123
316°C	0.121
Heat Capacity	kJ/kg·K
38°C	1.892
204°C	2.412
260°C	2.587
288°C	2.675
316°C	2.759

Physical Properties
Viscosity ASTM D445	cSt
40°C	39.41
204°C	1.50
260°C	0.99
288°C	0.84
316°C	0.74
Density ASTM D1298	kg/l
38°C	0.81
204°C	0.70
260°C	0.67
288°C	0.65
316°C	0.63
Vapor Pressure ASTM D2879	kPa
38°C	0.00
204°C	0.41
260°C	2.34
288°C	4.96
316°C	9.65
Distillation Range ASTM D2887
10%	372°C
90%	456°C
Molecular Weight	371

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	600°F
Max Film Temp.	630°F
Pour Point ASTM D445	5°F

Safety Data
Flash Point ASTM D92	425°F
Fire Point ASTM D92	448°F
Autoignition ASTM E-659-78	680°F

Thermal Properties
Thermal Expansion Coefficient	0.0564 %/°F
Thermal Conductivity	BTU/hr·ft·F°
100°F	0.079
500°F	0.072
550°F	0.071
Heat Capacity	BTU/lb·F°
100°F	0.452
500°F	0.618
550°F	0.639

Physical Properties
Viscosity ASTM D445	cSt
40°F	298.12
100°F	43.40
260°F	3.86
Density ASTM D1298	lb/ft³
100°F	50.62
500°F	41.66
550°F	40.54
Vapor Pressure ASTM D2879	psia
100°F	0.00
500°F	0.34
550°F	0.72
Distillation Range ASTM D2887
10%	701°F
90%	852°F
Molecular Weight	371