Product introduction:
With the continuous development of vacuum heat treatment technology, vacuum quenching of workpieces is becoming more and more common. Vacuum quenching oil is a kind of quenching oil specially used in vacuum quenching furnace. It is composed of mineral base oil with high purity, low gas solubility and good anti-gasification performance and various special additives. KERUN® KR328 vacuum quenching oil has been widely used in molds, bearings, springs, oil pump nozzles and other industries.
Product Features:
1.Short distillation range, extremely low saturated vapor pressure, strong anti-vaporization ability, non-volatile, easy to vacuum
2.Good thermal oxidation stability which keeps long service life
3.Good brightness, low oil consumption and easy to clean
Product Parameter:
| Item |
KR328 |
Method |
| Moisture, |
≤0.03% |
GB/T 11133 |
| Flash point (open cup), |
≥190°C |
GB/T 3536 |
| Kinematic viscosity (40°C) |
20-30 mm2/s |
ASTM D7279 |
| Corrosion (Copper sheet 100°C×3h), |
≤1 |
GB/T 5096 |
| Thermal oxidation stability |
viscosity ratio |
≤1.25 |
SH/T 0219 |
| residual carbon increased |
≤1.2% |
| Cooling performance |
characteristic temperature |
≥680°C |
GB/T 30823 |
| (100°C, static) |
Max. typical cooling rate |
100°C/s |
Audited Supplier 
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