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Corrosion-Resistant Steel Tubing | Up
Aviation Structural Mechanic (H&S) 3&2 - How airplanes are built and how to maintain them | Next
Typical styles of MS fittings |
Table 6-2.—Aluminum Alloy Tubing Applications
Old
Specification
WW-T-383
WW-T-787
WW-T-789
New
Specification
WW-T-700/1
WW-T-700/4
WW-T-700/6
Type
1100
-
0
-H12
-H14
-H16
-H18
5052
-
0
-H32
-H34
-H36
-H38
6061
- 0
- T4
- T61
General Usage and Applications
Tubing conforming to Federal Specification WW-T-700/1
shall not be used in hydraulic systems.
Specification covers tempers from annealed to full-hard.
Used mostly in O-annealed condition. Good formability.
Used where high strength is not necessary, as in low- or
negative-pressure (nonhydraulic) lines.
Specification covers tempers from annealed to full-hard.
Used mostly in O-annealed condition. Has good
workability. Used in medium-pressure systems
(1500 psi max.)
Specification covers annealed and three heat-treated
tempers. Used mostly in O-annealed and T-6. Has good
workability. Tubing conforming to Federal Specification
WW-T-700/6 shall not be used in hydraulic systems.
10nly 6061-T6 is of sufficient strength to use in the repair of aluminum tubing systems. In an emergency,
the other alloys of aluminum maybe used with AN fittings to make temporary repairs only.
Table 6-3.—AN/MS Tube Fitting Color Codes
MATERIAL OR FINISH
COLOR
Aluminum Alloy
Blue
Carbon Steel
Black
Corrosion Resistant Steel
Natural
Aluminum-bronze
Cadmium Plate
Titanium
Natural to Grey,
Depending on Type and Intended Use.
6-3
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