Patent ID: 8679643

Claim:
A plated steel sheet for cans, the plated steel sheet comprising: a steel sheet plated with, in sequence from the steel sheet; an alloy tin layer; a metallic tin layer; a chemical conversion layer; and a zirconium oxide layer; wherein the chemical conversion layer on the metallic tin layer comprises tin oxide and tin phosphate, wherein the tin oxide is present in an amount requiring 0.3 to 5.0 mC/cm 2 of electricity to reduce the tin oxide, and the tin phosphate is present in an amount corresponding to 0.5 to 5.0 mg/m 2 of P; the alloy tin layer is present in an amount corresponding to 0.1 to 1.6 g/m 2 of Sn; the metallic tin layer is present in an amount of 0.2 to 5 g/m 2 ; and the zirconium oxide layer on the chemical conversion layer comprises zirconium(IV) oxide, wherein the zirconium oxide is present in an amount corresponding to 0.2 to 5 mg/m 2 of Zr.