FREMGANGSMAATE TIL OVERFLATEBEHANDLING AV STAAL MED HOEYT NIKKEL-INNHOLD.

摘要

High nickel/iron alloy steel plate for LNG or LPG tanks having 35-37% nickel content is plated with nickel in an amount of 1 to 10 g/m2, and then chromated, except electro-chromating treatment, to obtain thereon a chromate film having a chromium content of 5 to 100 mg/m2.