ARMY - MIL-C-13924A
COATING, OXIDE, BLACK, FOR FERROUS METALS
| Organization: | ARMY |
| Publication Date: | 26 December 1956 |
| Status: | inactive |
| Page Count: | 5 |
scope:
This specification covers black oxide coatings applied to ferrous metals (wrought iron; carbon, low alloy, and corrosion resistant steels). Black oxide coatings, with or without a supplementary preservative treatment (see 3.1.1), may be used where a black surface is required, Only very limited corrosion protection, under mildly corrosive conditions, is obtained as a result of black oxide coating (see 6.1, 6.2 and 6.3). Black sulphide coatings are not included in this specification.
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