FAA Advisory Circular 43.13-1B
Acceptable Methods, Techniques, and Practices
Aircraft Inspection and Repair
AC 43.13-1B | 6. Corrosion, Inspection, and Protection | 11. Other Metals and Alloys | 6-181. Titanium and Titanium Alloys
AC 43.13-1B
9/8/98
(1) Stainless steel wool or hand brush.
(2) Abrasive mats, cloths, and papers
with either aluminum oxide or silicon carbide
grit.
(3) Dry abrasive blasting using glass
beads (spec. MIL-G-9954) sizes 10-13 or
Aluminum oxide (spec. MIL-G-21380, type I,
grades A or B) at a blast pressure of 40 to
50 psi (if using suction equipment use
50 percent higher pressure).
WARNING: Dry abrasive blasting of
titanium alloys creates sparking. En-
sure that hazardous concentrations of
flammable vapors are not present.
(4) Hand polish with aluminum polish
and soft cloth.
c. Titanium surfaces are susceptible to
hydrogen embrittlement that can induce stress
corrosion and associated pitting. Therefore,
chemicals such as fire-resistant hydraulic flu
ids must be controlled. Chlorinated hydrocar
bon solvents and chemical corrosion removers
are prohibited from use on titanium and tita
nium alloys.
6-182.6-192. [RESERVED.]
Page 6-38
Par 6-181