Product Data
Hydraulic Oil 68
Anti-wear hydraulic oil
Description
The Castrol Hydraulic™ Oil range are based upon mineral oil enhanced with a stabilised zinc additive system.
Application
Castrol Hydraulic is primarily for use in hydraulic equipment, but is suitable for other duties in which lubricants with good
oxidation stability and lubrication performance are required. The quality of its base oils and additives permits the
application of the Castrol Hydraulic range in lightly loaded gears and for use as circulating oil in applications where a rust
and oxidation inhibited oil is required.
Castrol Hydraulic oils meet the specification requirements of the Vickers vane-pump test, DIN 51524 Part 2 and is
classified as DIN 51502 classification – HLP & ISO 6743/4 – Hydraulic Oils Type HM.
The range is fully compatible with elastomer materials commonly used for static and dynamic seals, such as nitrile,
silicone and fluorinated (e.g. Viton) polymers.
Advantages
Good anti-wear performance – prevents wear of internal components reducing downtime
Resistant to oxidation – extends service life
Good water separation – reduces downtime and prolongs lubricant life
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Typical Characteristics
Name Method Units Hydraulic Oil 68
ISO Viscosity Grade - - 68
ISO 12185 / ASTM
Density @ 15°C / 59°F kg/m³ 880
D4052
Kinematic Viscosity @ 40°C / 104°F ISO 3104 / ASTM D445 mm²/s 68
Kinematic Viscosity @ 100°C / 212°F ISO 3104 / ASTM D445 mm²/s 8.77
Viscosity Index ISO 2909 / ASTM D2270 - >95
Pour Point ISO 3016 / ASTM D97 °C/°F -24 / -11
Flash Point - open cup method ISO 2592 / ASTM D92 °C/°F 226 / 439
Foam Sequence I - tendency / stability ISO 6247 / ASTM D892 ml/ml 10/0
Water Separation @ 54°C / 129°F (40/37/
ISO 6614 / ASTM D1401 min 15
3)
Air Release @ 50°C / 122°F ISO 9120 / ASTM D3427 min 8
FZG Gear Scuffing test - A/8.3/90 ISO 14635-1 Failure Load Stage 12
Rust test - distilled water (24 hrs) ISO 7120 / ASTM D665A - Pass
Rust test - synthetic seawater (24 hrs) ISO 7120 / ASTM D665B - Pass
Subject to usual manufacturing tolerances.
Hydraulic Oil 68
05 Apr 2013
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 Industrial, Technology Centre , Whitchurch Hill , Pangbourne , Reading , RG8 7QR , United Kingdom
www.castrol.com/industrial
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