Industrial Heat Treatment Oil
Quenching Oil No. 1 and No. 2
Medium for low-temperature tempering in industrial metal heat treatment
No. 1 / No. 2
Low-Temperature Tempering
120–250°C
Quenching oils No. 1 and No. 2 are formulated for low-temperature industrial heat treatment processes. They provide thermal-oxidative stability, reliable heat transfer, low coking tendency, and clean part surfaces. Available in bulk supply, export shipments, distributor partnerships, and OEM or private label services.
Product Description
Tempering oils No. 1 and No. 2 are industrial heat transfer fluids designed for low-temperature tempering processes. They provide thermo-oxidative stability and reliable heat transfer, helping to maintain stable operating conditions during repeated heat treatment cycles.
Compared to conventional machine and cylinder oils, these products help reduce sludge and carbon deposit formation during use. Their detergency and dispersancy ensure clean workpiece surfaces after tempering and facilitate residual oil removal.
Tempering oils also provide a high flash point, low volatility, low foaming tendency, and reduced oil carry-off. These properties make them suitable for industrial metal components requiring controlled low-temperature tempering and consistent surface quality.
Ningbo MOS Chemical Co., Ltd. manages international B2B sales, export coordination, and lubricant supply under the MOSINTER GROUP brand. Supported by production facilities invested in by MOSINTER GROUP, we serve thermal workshops, industrial buyers, wholesalers, and distributors requiring bulk supply, OEM packaging, and private label cooperation.
- Thermo-oxidation stability for extended service life
- Reduced tendency for sludge and deposit formation during operation
- High flash point and low volatility
- Low foaming tendency and reliable heat transfer
- Clean workpiece surface and simplified cleaning
- Bulk supply, distributor and OEM delivery options
Technical specifications
| PositionGrade | No.1 | No.2 | Test Method |
|---|---|---|---|
| Kinematic viscosity at 40°C, mm²/s, max. | 20 | 50 | GB/T 265 |
| Flash point (open cup), °C, min | 230 | 280 | GB/T 267 |
| Total Acid Number, mg KOH/g, max. | 0.35 | — | GB/T 264 |
| Water Content | No | No | GB/T 260 |
| Flash point, °C, min | 250 | 310 | GB/T 267 |
| Copper strip corrosion test (100°C, 3 h), rating, max | — | 1 | GB/T 5096 |
Frequently Asked Questions About Quenching Oil No. 1 and No. 2
What is release oil used for?
Tempering oil is used as a heat transfer fluid in low-temperature tempering processes after quenching. It provides controlled heating, thermal stability, and surface cleanliness of parts.
What is the difference between Quenching Oil No. 1 and No. 2?
Grades No. 1 and No. 2 provide different viscosity, flash point, and fire point characteristics. The appropriate grade should be selected based on the tempering temperature, equipment condition, and workpiece requirements.
What are the main performance benefits of this quenching oil?
The product provides thermo-oxidative stability, low tendency toward sludge and coke formation, low volatility, good detergency, and reduced oil carryover. Parts remain clean after tempering and are easier to clean.
Do you offer bulk supply and OEM services for tempering oil?
Yes. Ningbo MOS Chemical Co., Ltd. supports large-volume wholesale purchases, export shipments, distributor partnerships, and OEM or private-label services for qualified B2B clients.
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