|
KAISER ALUMINUM
TECHNICAL REFERENCE LIBRARY No. 1011
| Technical Data - ALLOY 7075 |
Call 1-800-USE-2011 |
| Chemical Composition
Limits |
Others |
| Weight % |
Si |
Fe |
Cu |
Mn |
Mg |
Cr |
Zn |
Ti |
Each |
Total |
| Minimum |
- |
- |
1.2 |
- |
2.1 |
0.18 |
5.1 |
- |
- |
- |
| Maximum |
0.40 |
0.50 |
2.0 |
0.30 |
2.9 |
0.28 |
6.1 |
0.20 |
0.05 |
0.15 |
| Typical
Physical Properties |
| Characteristic |
English |
Metric |
| Nominal
Density (68 °F/20 °C) |
0.101
lbs./in.3 |
2.80 Mg/m3 |
| Melting
Range |
990 °F -
1175 °F |
532
°C -
635 °C |
| Specific
Heat (212 °F/100 °C) |
0.23
BTU/lb. - °F |
960 J/kg
- °K |
| Coefficient of Thermal Expansion |
|
13.0
micro in./in.-°F |
23.4
micro m/m -°K |
|
|
3.78 x 10-5in.3/in.3
-°F |
68 x 10-6m3/m3
-°K |
| Thermal Conductivity (68°F/20°C) |
T6, T651 |
75
BTU/ft. - hr. - °F |
130 W/m -
°K |
| T73,
T7351 |
90
BTU/ft. - hr. - °F |
155 W/m -
°K |
| Electrical Conductivity (68°F/20°C) |
Equal Volume |
T6,T651 |
33% IACS |
| T73,T7351 |
40% IACS |
| Equal Weight |
T6,T651 |
105% IACS |
| T73,T7351 |
- |
| Typical Mechanical Properties |
| |
Tensile
(.500" Dia. Specimen) |
Hardness |
Shear |
Fatigue1 |
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 |
15 |
103 |
33 |
228 |
17 |
60 |
22 |
152 |
- |
- |
10.3 |
71.0 |
| T6, T651 |
73 |
503 |
83 |
572 |
11 |
150 |
48 |
331 |
23 |
158 |
10.3 |
71.0 |
| T73, T7351 |
63 |
434 |
73 |
503 |
13 |
- |
44 |
303 |
23 |
158 |
10.3 |
71.0 |
| 1 5 x 10E8
cycles of reversed stress |
|
| Comparative Characteristics |
| Temper |
Corrosion
Resistance |
|
|
|
|
Weldability4 |
| General1 |
Stress2 |
Gas |
Arc |
Spot |
| T6,T651 |
C |
C |
D |
C |
B |
D |
D |
D |
B |
| T73, T7351 |
C |
B |
D |
C |
B |
D |
D |
D |
B |
| 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-225/9 |
QQ-A-200/11 |
| |
AMS 4154 |
| AMS 4122 |
AMS 4167 |
| AMS 4123 |
AMS 4168 |
| AMS 4124 |
AMS 4169 |
| This alloy offers the highest strength of the common screw machine alloys. The
superior stress corrosion resistance of the
T173 and T7351 tempers makes it a logical replacement for 2024,
2014 and 2017 in many of the
most critical applications. The T6 and T651 tempers have fair machinability, resistance welding and corrosion resistance ratings. This alloy is
heavily utilized by the aircraft and ordnance industries because of its superior strength. |
|
