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TABLE
7
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Comparative
corrosion and fabrication characteristics and
typical applications of wrought aluminum alloys
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Alloy
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Temper
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Resistance
to corrosion
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Workability
(cold)(e)
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Machin-ability
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Weldability(f)
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Brazeability
(f)
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Solderability
(g)
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Some
typical applications
of alloys
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General
(a)
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Stress-corrosion
cracking
(b)
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Gas
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Arc
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Resistance
spot and seam
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2011
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T3
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D(c)
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D
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C
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A
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D
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D
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D
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D
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C
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Screw-machine
products
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T4,
T451
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D(c)
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D
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B
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A
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D
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D
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D
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D
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C
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T8
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D
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B
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D
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A
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D
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D
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D
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D
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C
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2014
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0
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D
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D
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D
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B
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D
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C
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Truck
frames, aircraft structures
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T3,
T4, T451
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D(c)
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C
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C
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B
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D
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B
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B
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D
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C
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T6,
T651, T6510, T6511
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D
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C
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B
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D
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B
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B
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D
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C
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2024
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0
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D
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D
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D
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D
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D
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C
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Truck
wheels, screw-machine products, aircraft structures
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T4,
T3, T351, T3510, T3511
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D(c)
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C
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C
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B
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C
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B
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B
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D
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C
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T361
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D(c)
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C
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D
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B
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D
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C
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B
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D
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C
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T6
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D
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B
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C
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B
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D
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C
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B
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D
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C
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T861, T81, T851, T8510, T8511
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D
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B
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D
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B
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D
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C
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B
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D
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C
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T72
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B
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2036
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T4
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C
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B
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C
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B
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B
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D
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Auto-body
panel sheet
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2124
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T851
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D
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B
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D
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B
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D
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C
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B
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D
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C
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Military
supersonic aircraft
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2218
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T61
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D
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C
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C
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C
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Jet
engine impellers and rings
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T72
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D
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C
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B
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D
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C
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B
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D
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C
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2219
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0
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D
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A
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B
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D
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Structural
uses at high temperatures (to 315 °C or 600 °F) high-strength
weldments
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T31,
T351, T3510, T3511
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D(c)
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C
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C
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B
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A
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A
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A
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D
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T37
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D(c)
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C
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D
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B
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A
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A
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A
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D
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NA
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T81,
T851, T8510, T8511
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D
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B
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D
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B
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A
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A
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A
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D
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T87
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D
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B
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D
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B
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A
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A
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A
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D
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2618
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T61
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D
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C
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B
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D
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C
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B
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D
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NA
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Aircraft
engines
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| (a) |
Ratings
A through E are relative ratings in decreasing order of merit,
based on exposures to sodium chloride solution by intermittent
spraying or immersion. Alloys with A and B ratings can be
used in industrial and seacoast atmospheres without protection.
Alloys with C, D, and E ratings generally should be protected
at least on faying surfaces. |
| (b) |
Stress-corrosion
cracking ratings are based on service experience and on laboratory
tests of specimens exposed to the 3.5% sodium chloride alternate
immersion test. A = No known instance of failure in service
or in laboratory tests. B = No known instance of failure in
service; limited failures in laboratory tests of short transverse
specimens. C = Service failures with sustained tension stress
acting in short transverse direction relative to grain structure;
limited failures in laboratory tests of long specimens. D
= Limited service failures with sustained longitudinal or
long transverse stress. |
| (c) |
In
relatively thick sections the rating would be E. |
| (d) |
This
rating may be different for material held at elevated temperature
for long periods. |
| (e) |
Ratings
A through D for workability (cold), and A through E for machinability,
are relative ratings in decreasing order of merit. |
| (f) |
Ratings
A through D for weldability and brazeability are relative
ratings defined as follows: A = Generally weldable by all
commercial procedures and methods. B = Weldable with special
techniques or for specific applications which justify preliminary
trials or testing to develop welding procedure and weld performance.
C = Limited weldability because of crack sensitivity or loss
in resistance to corrosion and mechanical properties. D =
No commonly used welding methods have been developed. |
| (g) |
Ratings
A through D and NA for solderability are relative ratings
defined as follows: A = excellent. B = Good. C = Fair. D
= Poor. NA = Not applicable.
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Available
Through Authorized Sanford Licensees
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SANFORD
PROCESS™ CORPORATION
1 Shorr Court, Woonsocket, RI 02895
Tel: (401) 597-5000 Fax: (401) 597-5485
Owners of Patents of the World's Finest Hard Anodized Process
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