Castrol Ilocut® 5621
Heavy Duty Cutting Oil

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Description
Castrol Ilocut 5621 is a heavy duty cutting oil formulated for machining and grinding stainless steels, the difficult-to-machine high alloy steels and nickel, titanium and specialty high strength alloys. This heavy duty metalworking oil excels in extreme pressure lubricity contributing to excellent finishes, extended tool life and economical grinding ratios. Castrol Ilocut 5621 oil is nonstaining to copper, brass and aluminum alloys. In the proper viscosity ranges, Castrol Ilocut 5621 is suitable for use as a dual-purpose oil in applications that require a single oil to serve as both the cutting fluid and machine tool lubricant.
Performance Benefits
􀂃 Heavy duty for extended tool life, fine finishes.
􀂃 Extreme pressure performance reduces chip welding.
􀂃 Clean, clear oils for operator acceptance.
􀂃 Nonstaining to copper, brass, aluminum and ferrous alloys.
􀂃 Dual-purpose in the appropriate viscosity ranges.
􀂃 Economical, long lasting performance without additive depletion.
Typical Operations
Boring
Drilling
Gear making
Milling
Tapping
Threading
Turning
Castrol Ilocut 5621 is a dual-purpose fluid that can also be used as a hydraulic lubricant.
Metal Safety
Consult your Castrol Sales Engineer for questions regarding compatibility.
Castrol Industrial Americas
150 W. Warrenville Road
Naperville, IL 60563
Tel (877) 641 1600
Fax (877) 648 9801
Castrol Ilocut 5621 – 23-Apr-04
Page 1 of 2
Castrol Industrial Americas
150 W. Warrenville Road
Naperville, IL 60563
Tel (877) 641 1600
Fax (877) 648 9801
Castrol Ilocut 5621 – 23-Apr-04
Page 2 of 2
Product Data
Typical Characteristics
Appearance: Yellow fluid
Specific Gravity @ 60" F (16° C): 0.98
Viscosity, SUS @ 100" F (38° C): 140
Viscosity, cSt @ 40° C (104° F): 28.4
Flash Point, COC: 137. 76 °C (279.97° F)
Bulk Density: 8.2
Copper Corrosion ASTM 130: 1b
Chlorine: Yes
Fat: Yes
Sulfur: No
Active Sulfur: No
All reasonable care has been taken to ensure that the information contained in this publication is accurate
as of the date of printing. However, such information may, nevertheless, be affected by changes in the
blend formulation occurring subsequent to the date of printing. Material Safety Data Sheets are available