Abstract: A lubricating composition for metal working comprisingA. about 10 to 60% by weight of a water-soluble non-ionic surfactant component comprising at least one ofI. a polyoxyalkylene glycol ester of a fatty acid represented by the general formula (I)r.sup.1 coo(r.sup.2 o).sub.n H (I)or the general formula (II)R.sup.1 COO(R.sup.2 O).sub.n OCR.sup.1 (II)ii. a polyoxyalkylene glycol ether of a fatty alcohol represented by the general formula (III)R.sup.3 O(R.sup.2 O).sub.n H (III)iii. a polyoxyalkylene glycol ether of a fatty alcohol esterified with a fatty acid represented by the general formula (IV)r.sup.3 o(r.sup.2 o).sub.n OCR.sup.1 (IV)andIv. a polyoxyalkylene glycol condensate of a glyceride esterified with a fatty acid represented by the general formula (V) ##EQU1## wherein R.sup.1 CO represents a saturated or unsaturated fatty acid acyl group having about 12 to 22 carbon atoms;R.sup.1.sup.

Abstract: A reducing hot rolling oil for copper and copper alloys comprising 1000 parts by weight of water, 6 - 200 parts by weight of at least one member selected from the group consisting of carboxylic acid type, sulfate type and phosphate type anionic surface active agents, and 0.8 - 200 parts by weight of at least one hydroxyl group-containing compound selected from the group consisting of alcohols, alkylene glycols and glycol ethers. The rolling oil can provide copper and copper alloys with lubricity, oxide film removing ability and oxide film formation preventing ability by spraying between a rolling mill and the metal to be rolled on the hot rolling of copper and copper alloys.The present invention relates to a rolling oil.