Product Introduction:
Isothermal stepped quenching oil is a special cooling medium for heat treatment. With the continuous improvement of industrialization level in China, the industrial upgrading of heat treatment industry is imperative, and higher requirements will be put forward for the quenching cooling medium in the key link. Therefore, reasonable and scientific allocation of isothermal stepped quenching oil has an important impact on reducing environmental pollution, improving product quality and enhancing the comprehensive competitiveness of heat treatment industry. Kerun's isothermal stepped quenching oil has a high flash point, which can realize Martempering quenching, significantly reduce the quenching deformation of complex shaped workpieces, effectively improve the product precision and reduce the processing margin of the workpieces, significantly reduce the production cost, and the surface of workpieces after quenching is easy to clean, with excellent thermal oxidation stability and long service life under high temperature conditions. Quenching deformation is one of the three difficulties in quality control of heat treatment. KERUN®KR488 isothermal stepped quenching oil can significantly reduce the quenching deformation of thin and complex shaped workpiece such as automobile gear, motorcycle gear, clutch disc and bearing ring, thus improving the product accuracy, reducing the machining allowance of the workpiece and significantly reducing the production cost.
Product Features:
1.Short vapor film stage, fast cooling at high temperature, and relatively slow cooling at low temperature, which entitle the bearing race with high and uniform surface hardness and enough hardening depth as well as control the deformation of the race
2.Good thermal oxidation stability which keeps long-term stable cooling characteristics and long service life
3.Good brightness, low oil consumption and low cost of use
Product Parameter:
| Item |
KR488 |
Method |
| Moisture, ≤ |
0.03% |
GB/T 11133 |
| Flash point (open cup), ≥ |
235°C |
GB/T 3536 |
| Kinematic viscosity (40°C) |
70-90 mm2/s |
ASTM D7279 |
| Corrosion (Copper sheet 100°C×3h), ≤ |
1 |
GB/T 5096 |
| Thermal oxidation stability, viscosity ratio, ≤ |
1.25 |
SH/T 0219 |
| Max. typical cooling rate @ 100°C, static |
83°C /s |
ISO 9950 |
Audited Supplier 
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