Cadmium

This specification covers requirements for electro-deposited cadmium coatings applied to iron or steel articles to protect them from corrosion.

Stress Relief: All parts with ultimate tensile strength 160 ksi and above at a minimum 190 deg C for 4 hours or more before cleaning and plating.

Hydrogen Embrittlement Relief: All electroplated parts 160 ksi or higher shall be baked at 190 deg C for 8 hours.

Type I

As Plated

Type II

With colored chromate conversion coatings.

Type III

With phosphate conversion coatings.

Class I

.00050 inch thick minimum

Class II

.00030 inch thick minimum

Class III

.00020 inch thick minimum