MIL-STD-1568 Materials And Processes For Corrosion Prevention And Control In Aerospace Weapons SystemsThis standard establishes the requirements for materials, processes and techniques, and identifies the tasks required to implement an effective corrosion prevention and control program during the conceptual, validation, development and production phases of aerospace weapons systems. The intent is to minimize life cycle cost due to corrosion and to obtain improved reliability.

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MIL-STD-1568C

5.2.3.4.2 Fretting. Titanium alloys are highly susceptible to the reduction of fatigue life by fretting at interfaces between titanium alloys or titanium and other metals. In any design where fretting is suspected, tests shall be made to determine whether such a condition exists. Design considerations shall be applied to minimize fretting in structural applications.

5.2.3.4.3 Special precautions. Titanium parts shall not be cadmium or silver plated. Cadmium plated clamps, tools, fixtures, and jibs shall not be used for fabrication or assembly of titanium components or structures.

TABLE II. Corrosion characteristics of corrosion resistant steels.

Class	Alloy	General corrosion resistance	Stress corrosion resistance
Austenitic	301	High	Very high
	302	High	Very high
	304	High	Very high
	310	High	Very high
	316	Very high	Very high
	321	High	Very high
	347	High	Very high
Martensitic	440C	Low to moderate - will develop superficial rust film with atmospheric exposure	Susceptibility varies significantly with composition, heat treatment and product form
	420
	410
	416
Precipitation Hardening	21-6-9	Moderate	Susceptibility varies significantly with composition, heat treatment, and product form.
	13-8Mo	Moderate
	15-7Mo	Moderate
	14-8Mo	Moderate
	17-4PH	Moderate
	15-5PH	Moderate
	AM355	Moderate
	AM350	Moderate
	9Ni 4Co-0.20C	Moderate	Very high
	9Ni 4Co-0.30C	Moderate	Very high
	9Ni 4Co-0.45C	Moderate	Low
Other	A286	High	Very high