DIE LUBRICANTS

Witcol DL 81 is a highly chlorinated extreme pressure (EP) type oil with fatty oils and free sulphur, making it ideally suited for most severe driving conditions. At the drawing periphery, when the surface of the tube bar is in contact with the die, there is a chemical reaction on the metal surfaces whereby a nascent metallic chloride layer of molecular thickness is formed. This feature is important in the high speed drawing process of steel for extending the die life and improving the surface finish.


APPLICATIONS
Witmans’ Witcol DL 81 is ideally suited for cold pilfering. It has a high percentage of stabilized chlorine incorporated in the blend. Witcol DL 81 is also widely used for deep drawing and cold-rolling of stainless steel tubes.

PERFORMANCE BENEFIT

  • Maximum reduction per pass

  • High degree of internal and external finish

  • Low wear on mandrel and dies

  • Reduction in frictional heat

  • Close limit on wall thickness

Properties ASTM Method Unit Values
Appearance Visual Attribute Clear Liquid
Colour Visual Attribute Light Yellow
Viscosity @100 °C ASTM D – 445 CST 13 ± 3>
Density ASTM D - 1298 Number 1.20 ± 0.1
Flash point ASTM D - 92 °C 180
Pour point ASTM D - 97 °C (-) 5
Copper Corrosion Test ASTM D - 130 No. 4 C

DISCLAIMER
The information given here is considered to be correct and offered for your consideration, investigation and verification. Please be advised that no warranties are expressed or implied due to the inherent variability in product use, which is beyond our direct control.