OST 38.01445-88

MR-7 is used as cooling lubricants for blade machining, including vending machines and benches, arbon, alloy, stainless and heat resistant steels, as well as some hard-alloys. Limitedly applicable in processing of copper and its alloys. Feeding to the cutting are is performed through irrigation or under the pressure.

Index nameNorm
Flash point in open crucible, °С, not less than 180
Kinematic viscosity at 100°С, mm2/s 23-30
Saponifi cation number, mgКОН/g, not less than 18
Acid number, mg КОН/1g, not more than 1,2
Color, CNT units, not more than -
Corrosive effect on metals Pass
Mass fraction, %:  
- Mechanical impurities, not more than 0,04
- Water, not more than None
- Sulfur 1,2-2,0
- Free organic acids, not more than -


Our partners