|
KAISER ALUMINUM
TECHNICAL REFERENCE LIBRARY No. 1009
| Technical Data - ALLOY 6061 |
Call 1-800-USE-2011 |
| Chemical Composition
Limits |
Others |
| Weight % |
Si |
Fe |
Cu |
Mn |
Mg |
Cr |
Zn |
Ti |
Each |
Total |
| Minimum |
0.40 |
- |
0.15 |
- |
0.8 |
0.04 |
- |
- |
- |
- |
| Maximum |
0.8 |
0.7 |
0.40 |
0.15 |
1.2 |
0.35 |
0.25 |
0.15 |
0.05 |
0.15 |
| Typical
Physical Properties |
| Characteristic |
English |
Metric |
| Nominal
Density (68 °F/20 °C) |
0.098
lbs./in.3 |
2.70 Mg/m3 |
| Melting
Range |
1080 °F
- 1206 °F |
582 °C -
652 °C |
| Specific
Heat (212 °F/100 °C) |
0.214
BTU/lb. - °F |
896 J/kg
- °K |
| Coefficient of Thermal Expansion |
|
13.1
micro in./in.-°F |
23.6
micro m/m -°K |
|
|
3.93 x 10-5in.3/in.3
-°F |
71 x 10-6m3/m3
-°K |
| Thermal Conductivity (68°F/20°C) |
O Temper |
104
BTU/ft. - hr. - °F |
180 W/m -
°K |
| T4,T451 |
89
BTU/ft. - hr. - °F |
154 W/m -
°K |
| T6,T651 |
97
BTU/ft. - hr. - °F |
167 W/m - °K |
| Electrical Conductivity
(68°F/20°C) |
Equal Volume |
O Temper |
47% IACS |
| T4,T451 |
40% IACS |
| T6,T651 |
43% IACS |
| Equal Weight |
O Temper |
155% IACS |
| T4,T451 |
132% IACS |
| T6,T651 |
142% IACS |
| Typical Mechanical Properties |
| |
Tensile
(.500" Dia. Specimen) |
Hardness |
Shear |
Fatigue* |
Modulus |
| Temper |
Yield |
Ultimate |
Elongation/4D |
|
Ultimate
Shearing Strength |
Endurance
Limit R.R. Moore Type |
Modulus
of Elasticity |
| KSI |
MPa |
KSI |
MPa |
% |
|
KSI |
MPa |
KSI |
MPa |
KSI
x 103 |
Gpa |
| 0 |
8 |
55 |
18 |
124 |
30 |
30 |
12 |
83 |
9 |
62 |
10.0 |
68.3 |
| T4,T451 |
21 |
145 |
35 |
241 |
25 |
65 |
24 |
165 |
14 |
97 |
10.0 |
68.3 |
| T6, T651 |
40 |
276 |
45 |
310 |
17 |
95 |
30 |
207 |
14 |
97 |
10.0 |
68.3 |
|
*5 x 10E8
cycles of reversed stress |
| Comparative Characteristics |
| Temper |
Corrosion
Resistance |
|
|
|
|
Weldability4 |
| General1 |
Stress2 |
Gas |
Arc |
Spot |
| O |
B |
A |
A |
D |
A |
A |
A |
A |
B |
| T4, T451 |
B |
B |
B |
C |
A |
A |
A |
A |
A |
| T6, T651 |
B |
A |
C |
C |
A |
A |
A |
A |
A |
| 1 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. |
| 2 Stress-corrosion cracking ratings
are based on service experience and 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 transverse specimens. |
| D= |
Limited service failures with sustained
longitudinal or long transverse |
|
|
| 3 Ratings A through D for Workability
(cold), A through E for Machinability and A through C for Anodize Response, are relative
ratings in decreasing order of merit. |
| 4 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 that justify preliminary trails 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. |
|
| Applicable
Specifications |
|
| Cold Finished |
Extruded |
| ASTM B211 |
ASTM B221 |
| QQ-A-225/8 |
QQ-A-200/8 |
| AMS 4115 |
AMS 4150 |
| AMS 4116 |
AMS 4160 |
| AMS 4117 |
AMS 4161 |
| AMS 4128 |
AMS 4172 |
| |
AMS 4173 |
| Generally selected where welding or brazing
is required of for its high corrosion
resistance in all tempers. Formability is excellent in O temper and good in the T4
temper. Machining is more difficult when compared to the other machining alloys. Corrosion resistance and appearance after anodizing are superior to all other screw machine
alloys while strength is the lowest. |
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