Product Characteristics

• Base Oil: Synthetic hydrocarbon, similar to HP-8B but with earlier-generation formulations.

• Temperature Range: -40°C to 150°C (narrower than HP-8B’s -50°C to 160°C), suitable for moderate operational demands.

• Performance:

• Adequate oxidation resistance and viscosity stability under standard conditions.

• Lower high-temperature stability compared to HP-8B, with faster degradation above 160°C.

• Strong rubber seal compatibility, making it ideal for systems requiring elastomer durability.

Application Scenarios

• Original Use: Served as the primary lubricant for early Chinese military aircraft engines (e.g., J-5, J-6 fighters).

• Current Role:

• Transitioned to naval aviation (e.g., ship-based helicopters, maritime patrol aircraft) due to its superior sealing performance in humid, salt-rich environments.

• Still used in older Air Force platforms where engine retrofitting to HP-8B is impractical.

• Mixing: Occasionally blended with additives for specialized applications but less versatile than HP-8B.

Production and Supply

• Manufacturers: Produced by KunLun Lubricants and Shenyang Teli Petrochemical, though output has decreased since HP-8B’s adoption.

• Packaging: Same as HP-8B (170kg/drum, compliant with GB 439-1990).

• Military Preference: Naval units prioritize HP-8A for its seal protection, while the Air Force phases it out in favor of HP-8B.

Key Differences: HP-8A vs. HP-8B