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Fire-resistant Hydraulic Oil KR-EFU68 | Fire Resistance Industrial Circulating Oils |

Vacuum Quenching Oil For Large-sized Tooling And Molds KR328

KR328
With the continuous development of vacuum heat treatment technology, vacuum quenching has become increasingly common for workpieces. KR328 vacuum quenching oil has been widely applied in industries such as tool and die, bearings, springs, and oil pumps and nozzles.

Product Details

Advantages

Short distillation range, low saturated vapor pressure, strong anti-vaporization ability, low volatility, and easy to vacuum. | Good brightness, easy to clean, with minimal oil carry-over. | Excellent thermal oxidation stability, providing a long service life.

Technical Specifications

Model KR328
Flash Point Model (open °C)>= 190
Max Cooling Rate °C/s 100 60 °C
Kinematic Viscosity (40°C) mm2/s 20.0-30.0
Operating Temperature °C 50-80
Application Range Vacuum quenching for large-sized tool and die steels such as Cr12, Cr12MoV, H13, 6542, W18Cr4V.

Storage Conditions

Item Requirements
Storage Temperature 5–40°C. Indoor storage is recommended. Protect from freezing, as freezing may damage the polymer system.
Packaging & Container Requirements Packaged in 200 L plastic drums with a net weight of 200 kg per drum; 25 kg plastic pails or 1,000 kg intermediate bulk containers (IBCs) may also be used.
Shelf Life 2 years. After expiry, the product may only be used after it has been retested and confirmed to meet specifications.
Key Properties (KR9988) Appearance: light yellow to pale red viscous liquid; pH (5% solution): 9.5–10.5; kinematic viscosity (10% solution at 40°C): 3.19 mm²/s.
Precautions Nonflammable and presents no fire hazard; nevertheless, keep the container tightly sealed. If stored outdoors, place the drum horizontally to prevent water, dust, and other contaminants from entering. Retighten the cap immediately after dispensing. Check the concentration with a refractometer before use. PAG-containing products exhibit reverse solubility; polymer separation at elevated temperatures is normal, and the product can be restored by cooling and stirring.

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