| abstract |
Provided is a water-soluble lubricating agent for plastic working having lubricity and seize resistance equal to or greater than a phosphorus-containing chemical conversion treatment film, having excellent corrosion resistance, and being capable of forming a lubricating film, which also has good film adhesion, without including phosphorus in the film. This water-soluble lubricating agent for plastic working comprises an inorganic solid lubricant as component A, a wax as component B, and a water-soluble inorganic metal salt as component C, wherein the solids mass ratio of component A and component B (component A/component B) is 0.1 to 5, and the solids mass ratio of component C with respect to the total amount of component A, component B, and component C (component C/component A + component B + component C) is 1 to 30%. |