scope:

Purpose: This specification establishes the engineering requirements for producing an electrolytic conversion (anodize) coating on titanium and titanium alloys and the properties of the coating.

Application: Type 1 is used primarily as a lubricating and antigalling coating for elevated-temperature forming of titanium and titanium alloys. Type 2 is used primarily for protection against galling and galvanic corrosion, for improved wear resistance, and for pretreatment in the application of dry film lubrication.

Classification: Coatings are classified by end-product application, as follows:

Type 1 - As a coating for elevated-temperature forming.

Type 2 - As an anti-galling coating without additional lubrication or as a pretreatment for dry film lubricants. Such coatings also are compatible with hypergolic propellants such as hydrazine-unsymmetrical-dimethlhydrazine and nitrogen tetroxide, and are electrically semiconductive.

Type 2 shall be furnished unless type 1 is specified.