Quenching Oil

WITCOL TEMPER LUBE -39/40/42 SPL/43/85

Description :

The term quenching normally refers to the controlled cooling of steel components in a fluid to give specified properties. The hardness and other physical properties obtained depend on the composition of the steel, the dimension of the component, the time and temperature of the heat treatment and the speed and duration of the quenching process. A number of quenching mediums such as molten salts, brine water, synthetic quenchants can be used, but petroleum based medium find the widest application due to the following advantages. They are easier to control and give uniform hardness. Suitable for large scale automation. They are non-corrosive and non-toxic. ‘Witcol Temper Lube Grades’ have been specially formulated from highly refined petroleum oils with additives and have the following characteristics:

• Good thermal properties
• Good chemical oxidation stability
• High boiling points & low volatility
• High flash & hire points

TEMPER LUBE 39 / 40 :
These are blends of refined base oils and contain no additives. ‘ Witcol’ Temper Lube 39’ is recommended for general purpose quenching of components and is particularly suitable for quenching of cyanided parts. ‘Witcol Temper Lube 40’ is suitable in situations where lower quenching speed is desired. These meet the requirement of IS 2664-1980 Straight Mineral Type Grade Medium and Heavy respectively.

This is blend of refined petroleum oil and high quality fatty oils. It has good wetting characteristics and has a higher quenching speed compared to ‘Witcol Temper Lube 39 and Witcol Temper Lube 40. Recommended for general purpose quenching operation but is not suitable for quenching of cyanided parts. It meets the requirement of IS 2664-1980 Compounded type.

It is an additive type of Quenching Oil with good dispersant characteristics and has excellent heat transfer properties. The carefully selected additive incorporated in this oil controls soiling of metallic parts during quenching by preventing dirt from accumulating on the metal and thereby ensures uniform hardness with minimum quench distortions. It meets the requirements of IS 2664-1980, Additive Type.

Marquenching oil suitable for maintaining the quenching bath at 150 to 220° C. It is recommended for the mass production of high precision, high quality products, such as bearing races automotive gears and transmission components. It gives low and predictable quench distortions cutting down rejects. It meets the requirements of IS 4543-1977.


  Properties   39   40   42   42 SPL   42 SPL   85
  Viscosity @ 40° C (Cst)   28   62   28   28.6   28   16@100°C
  Viscosity Index   90   90   90   135   90   90
  Flash Point COC °C (Min.)   190   220   175   200   175   240
  Copper Strip Corrosion @ 100°C For 3 Hrs (ASTM)   1   1   1   1   1   1
  Neut No. mg KOH/gm   0.1   0.1   1.3   0.29   0.6   0.1
  GM Magnetic Reading ASTM D 3520 Seconds   27.9   29.0   24.1   24.1   20.6   34.60

The information given here is considered to be correct and offered for your consideration, investigation and verification. No warranties are expressed or implied since the use of products is beyond our control .