Product Data
Castrol Alphasyn HTX Range
High Temperature Synthetic Gear Lubricant
Description
The Alphasyn™ HTX gear oil range of synthetic lubricants are based on polyalpha-olefin (PAO) fluids and sulphur/
phosphorus antiwear additive technology providing outstanding thermal stability and good load carrying capacity.
Application
The Alphasyn HTX range has been formulated for use in most types of light to medium duty enclosed gear systems but
should not be used for heavy / shock loaded systems. Alphasyn HTX is also suitable for bearings and circulatory
systems operating at high temperatures.
The outstanding oxidation and thermal stability of Alphasyn HTX allows oil change intervals to be extended in
circumstances where extreme temperatures would result in a short service life if using conventional mineral oil based
lubricants. This allows demonstrable savings to be made by reducing the level of maintenance required.
All products in the Alphasyn HTX range have very low pour points and excellent viscosity/temperature
characteristics, allowing their use in low temperature as well as high temperature applications.
The Alphasyn HTX range is fully compatible with nitrile, silicone and fluropolymer seal materials.
Alphasyn HTX is classified as follows:
DIN Classification is CLP
Alphasyn HTX grades meet the requirements of:
DIN 51517 Part 3
David Brown Type A
AGMA EP4
Advantages
Good thermal and oxidative stability provides reliable operation and extended operating life when compared to
mineral oil based products.
Inherently high viscosity index makes the product suitable for operations operating over a wide temperature
range.
Good antiwear and load carrying abilities including FZG > 12 rating under A16.6/110 test conditions eliminates
wear and prolongs gear tooth life.
Good water separation and demulsification characteristics means reduced down time through prolonged
lubricant life and increased equipment reliability.
PAO based lubricant provides good compatibility with seals, paints and mineral oil based lubricants.
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Typical Characteristics
HTX HTX HTX HTX HTX HTX
Name Method Units
68 150 220 320 460 1000
ISO 12185, ASTM
Density at 15°C g/ml 0.86 0.87 0.87 0.87 0.87 0.88
D4052
ISO 3104, ASTM
K.V at 40°C mm²/s 68 150 220 320 460 1000
D445
ISO 3104, ASTM
K.V at 100°C mm²/s 10.8 20 27 37 47 85
D445
ISO 2909, ASTM
Viscosity Index - 150 150 155 160 160 165
D2270
ISO 3016, ASTM
Pour Point °C -39 -39 -39 -36 -36 -36
D97
ISO 2719, ASTM
Flash Point, PMC °C 220 220 220 230 230 230
D93
ISO 6247, ASTM mls/
Foam Sequence l 0/0 0/0 0/0 0/0 0/0 0/0
D892 mls
FZG (A6.6/110) Fail ISO 14635-1, ASTM
- - - >12 >12 >12 >12
Stage D51354
Rust Test (24hrs ISO 7210, ASTM
- Pass Pass Pass Pass Pass Pass
Distilled Water) D665B
Subject to usual manufacturing tolerances.
Castrol Alphasyn HTX Range
31 Aug 2016
Castrol, the Castrol logo and related marks are trademarks of Castrol Limited, used under licence.
This data sheet and the information it contains is believed to be accurate as of the date of printing. However, no warranty or representation, express or implied, is
made as to its accuracy or completeness. Data provided is based on standard tests under laboratory conditions and is given as a guide only. Users are advised
to ensure that they refer to the latest version of this data sheet. It is the responsibility of the user to evaluate and use products safely, to assess suitability for the
intended application and to comply with all applicable laws and regulations. Material Safety Data Sheets are available for all our products and should be
consulted for appropriate information regarding storage, safe handling, and disposal of the product. No responsibility is taken by either BP plc or its subsidiaries
for any damage or injury resulting from abnormal use of the material, from any failure to adhere to recommendations, or from hazards inherent in the nature of the
material. All products, services and information supplied are provided under our standard conditions of sale. You should consult our local representative if you
require any further information.
Castrol (UK) Limited, PO BOX 352, Chertsey Road, Sunbury On Thames, Middlesex, TW16 9AW
Orders/Enquiries: 0345 9645111 Technical Enquiries: 0345 082 1719
www.castrol.com/industrial
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