HP STEEL 680 is a premium heavy-duty bearing and circulating oil formulated for use in steel mill applications, particularly in Morgan Bearings and other high-load environments. It is blended from high-quality paraffinic base oils combined with carefully selected additives that provide superior oxidation and thermal stability. The oil’s high viscosity ensures excellent film strength and consistent lubrication, minimizing metal-to-metal contact and wear even under extreme operating pressures and elevated temperatures. Engineered for superior demulsibility and rust protection, HP STEEL 680 effectively separates water, preventing emulsions that could impair lubrication efficiency. Its exceptional anti-oxidant and anti-rust properties help maintain equipment cleanliness and prevent corrosion, while its anti-foam and defoaming characteristics ensure smooth circulation and stable operation. The product’s outstanding wetting ability allows rapid oil spread on bearing surfaces, ensuring uniform coverage and improved protection under severe load and high moisture conditions. HP STEEL 680 meets the bearing lubricant requirements specified by MORGAN Construction Co., USA, and conforms to IS:6552-1987 and IPSS:1-09-001-97 standards. It is ideally suited for use in Plate Mills, Wire Rod Mills, Blooming and Billet Mills, and Rail & Structural Mills where bearings are subjected to heavy loads and continuous water exposure. With a viscosity range of 645–715 cSt at 40°C, a flash point of 270°C, and excellent FZG performance, HP STEEL 680 delivers outstanding reliability, long service life, and reduced maintenance in demanding industrial operations.
| Kinematic Viscosity @ 40°C, cSt | 645 – 715 |
|---|---|
| Viscosity Index, Min | 95 |
| Flash Point, °C, Min | 270 |
| Pour Point, °C, Max | -6 |
| FZG Failure Load Stage, Min | 6 |
