Patent ID: 8728994

Claim:
An oil type lubricant for forging, which comprises: (a) 60-90 mass % of solvents having a kinematic viscosity of 2-10 mm 2 /s at 40° C. and a flash point of 70-170° C.; (b) 1-5 mass % of mineral oils having a kinematic viscosity of 50 to less than 100 mm 2 /s at 40° C.; (c) 1-5 mass % of an ester base oil having a kinematic viscosity of not less than 200 mm 2 /s at 40° C.; (d) not more than 15 mass % of silicone oils having a kinematic viscosity of not less than 150 mm 2 /s at 40° C.; (e) 5.1-10 mass % of additives exhibiting a lubricity; and (f) 0 mass % of water, wherein the mineral oils is selected from the group consisting of petroleum-based mineral oil and cylinder oil, and the ester base oil is selected from the group consisting of diester, triester, trimelliate ester and complex ester.