Zinc phosphating

ISO 9001 military

PLATING SPECIFICATIONS - GENERAL INFORMATION Page 17 Reference Only April 2018 PHOSPHATE, HEAVY DOD-P-16232 Coating for ferrous metals. TYPE Z can be used up to 200F to prevent galling in extrusion and deep drawing. CLASS 2 is good for corrosion resistance. TYPE Z: .0002" to .0006" zinc phosphate base coating 1000 mg/sf. Class 1: supplementary preservative oil treatment, as specified. Class 2: treated with non-drying type preservative conforming to MIL-C-16173 grade 1. Class 3: no supplementary treatment. Class 4: chemically converted, no supplementary treatment. EXAMPLE SPECIFICIATION: HEAVY PHOSPHATE. REFERENCE DOD-P-16232 CLASS 2