Surface treatment of high-nickel/iron alloy steel plate for LNG

Details Surface treatment of high-nickel/iron alloy steel plate for LNG Surface treatment of high-nickel/iron alloy steel plate for LNG

1984-09-20

1986-06-03

O'Keefe, Veronica

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428632, 136265, B23P 300

Patent

active

045929653

ABSTRACT:
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/m.sup.2, and then chromated, except electro-chromating treatment, to obtain thereon a chromate film having a chromium content of 5 to 100 mg/m.sup.2.

REFERENCES:
patent: 2975073 (1961-03-01), DeLong et al.
patent: 3994694 (1976-11-01), Clauss et al.

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