SINOPEC High Temperature and High Speed Drilling Grease 7411 is manufactured from a highly refined mineral base oil, a special complex soap thickener and well-chosen anti-oxidant, AW, EP and anti-rust additives. According to GB/T 7631.8-90 (ISO6743/9-1987), Grease 7411 can be classified as L-XBEHB1-2.
Features & Benefits
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Excellent anti-wear and heavy load capability
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Excellent retention and resistance to high-temperature degradation
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Exceptional rust and corrosion prevention performance
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Prolonged service life
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Do not contain any heavy metal and nitrite that will do harm to human’s health and pollute environment.
Technical specification
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Meets the following performance specification: Q/SH303 218—2004
Application
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Grease 7411 is designed for the lubrication of well drilling roller bit bearings.
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Suitable operation speed ranged from 60rpm~120rpm.
Typical Properties
| Items | Typical Properties | Test method |
| Appearance | Smooth black buttery | Visual |
| 1/4 Worked Cone Penetration,0.1mm | 82 | ASTM D217 |
| Dropping Point, ºC | 260 | ASTM D2265 |
| Evaporation Loss (150ºC,1h),% | 1.3 | ASTM D972 |
| Load Capability (room temperature, 1500rpm), N
Weld load PD |
6092 | ASTM D 2783 |
Attentions
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Prevent water and impurities during storage and transportation.
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Do not mix with other type of grease.
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Do not heat before using.