1
These characteristics are typical of current production. While future production will conform to Shell’s specification, variations in these characteristics may occur.
TYPICAL DESIGN DATA
TEMPERATURE °C 0 20 40 100 150 200 250 300 340
Density kg/m
3
876 863 850 811 778 746 713 681 655
Specific Heat Capacity kJ/kg*K 1.809 1.882 1.954 2.173 2.355 2.538 2.72 2.902 3.048
Thermal Conductivity W/m*K 0.136 0.134 0.133 0.128 0.125 0.121 0.118 0.114 0.111
Prandtl No. 3375 919 375 69 32 20 14 11 9
TYPICAL PHYSICAL CHARACTERISTICS
CHARACTERISTICS
Kinematic Viscosity (ISO 3104)
@ 0°C mm
2
/s
@ 40°C mm
2
/s
@ 100°C mm
2
/s
@ 200°C mm
2
/s
223
25
4.7
1.1
Density @ 15°C kg/m
3
(ISO 12185) 866
Flash Point °C (PMCC) (ISO 2719)
°C (COC) (ISO 2592)
210
220
Fire Point °C (COC) (ISO 2592) 255
Pour Point °C (ISO 3016) –12
Initial Boiling Point °C (ASTM D 2887) 355
Autoignition Temperature °C (DIN 51794) 360
Neutralisation Value mg KOH/g (ASTM D 974) <0.05
Ash (Oxid) %m/m (ISO 6245) <0.01
Carb
on Residue (conradson) %m/m (ISO 10370) 0.02
Copper Corrosion (3h/100°C) (ISO 2160) class 1
SHELL AUSTRALIA LUBRICANTS PRODUCT DATA GUIDE 2011
INDUSTRY GEAR OILS
INDUSTRY HEAT TRANSFER OILS
SHELL HEAT TRANSFER OIL S2
PERFORMANCE FEATURES
EXTENDED MAINTENANCE INTERVALS
n
Shell Heat Transfer Oil S2 is based on carefully selected highly
refined mineral oils and resists oil cracking, oxidation and
thickening. This provides extended oil life, provided efficient fluid
heating and good pump circulation is ensured, such that film
temperatures on the heater surface do not exceed the limits below.
SYSTEM EFFICIENCY
n
Low viscosity enables excellent fluidity and heat transfer over
a wide temperature range.
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Shell Heat Transfer Oil S2 also has a low vapour pressure so resists
cracking. This minimises the formation of volatile decomposition
products; these would require recovery via expansion chamber and
condensate collector.
WEAR PROTECTION
n
Shell Heat Transfer Oil S2 is non-corrosive and has high solvency;
this helps to reduce deposit formation by holding oxidation
products in solution and keeping internal surfaces of heat
exchangers clean.
APPLICATIONS
ENCLOSED CIRCULATED HEAT TRANSFER SYSTEMS
n
For industrial applications such as process industry, chemical
plants, textile producers and in household equipment such as oil
filled radiators.
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Shell Heat Transfer Oil S2 can be used in high temperature continuous
heat transfer equipment with the following application limits:
Maximum film temperature = 340°C
Maximum bulk temperature = 320°C
ADVICE
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The life of Shell Heat Transfer Oil S2 depends on the design
and usage of the system. If the system is well designed an
d not
subjected to abnormal workloads, the life can be for many years.
n
It is important to monitor oil condition regularly as rates of change
in physical characteristics are more significant than actual values.
The properties that should be monitored are viscosity, acidity, flash
point (open and closed) and insolubles content.
SPECIFICATIONS, APPROVALS
AND RECOMMENDATIONS
TYPICALLY MEETS THE REQUIREMENTS
n
DIN 51522
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Classified as ISO 6743-12 Family Q.
SHELL HEAT TRANSFER OIL S2
HIGH PERFORMANCE HEAT TRANSFER FLUID
PREVIOUSLY SHELL THERMIA B
Shell Heat Transfer Oil S2 is based on carefully selected, highly refined mineral oils chosen for their
ability to provide superior performance in indirect closed fluid heat transfer systems.
DESIGNED TO MEET CHALLENGES
SHELL AUSTRALIA LUBRICANTS PRODUCT DATA GUIDE 2013
INDUSTRY HEAT TRANSFER OILS