Technical Information: Precision Airset Castings
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Available Alloys
Alloy
|
Heat Treating
|
Ultimate Tensile Strength
KSI
|
Min. Yield Strength Set @ 2% KSI
|
Elongation %
|
Hardness Rockwell E Scale 1/16 Ball
|
Pressure Tightness
|
Machinability
|
Aluminum Alloys |
319.0 |
T6 |
36 |
24 |
2.0 |
85.5 |
B |
A |
355.0 |
T51 |
28 |
23 |
1.5 |
76.0 |
A |
C |
355.0 |
T6 |
35 |
25 |
3.0 |
85.5 |
A |
B |
C355.0 |
T6 |
39 |
29 |
5.0 |
89.0 |
A |
B |
356.0 |
T51 |
25 |
20 |
2.0 |
71.0 |
A |
C |
356.0 |
T6 |
33 |
24 |
3.5 |
79.0 |
A |
A |
A356.0 |
T51 |
26 |
18 |
3.0 |
71.0 |
A |
C |
A356.0 |
T6 |
40 |
30 |
6.0 |
82.5 |
A |
A |
357.0 |
T51 |
26 |
17 |
3.0 |
80.0 |
B |
C |
357.0 |
T6 |
45 |
35 |
3.0 |
91.0 |
B |
B |
A357.0 |
T6 |
45 |
35 |
3.0 |
89.0 |
B |
B |
380.0 |
None |
46 |
23 |
3.5 |
85.5 |
B |
C |
712.0 |
* |
35* |
25* |
5.0* |
82.5 |
C |
A |
712.0 also known as D712, D612, and 40E |
Zinc Alloys |
ZA3 |
None |
41 |
- - |
10.0 |
87.0 |
C |
C |
ZA8 |
None |
34 |
30 |
1.5 |
95.5 |
C |
C |
ZA12 |
None |
43 |
30 |
2.0 |
93.0 |
C |
B |
ZA27 |
None |
61 |
46 |
9.5 |
100.0 |
C |
B |
These values are for separately cast test bars and are typical values. |
* Test 30 days after casting
A = Excellent B = Good C = Fair
Applicable Military Specifications
- Mechanical/chemical inspection to MIL-A-21180QQ-A-601, AMS-4217
- System control to MIL-45208
- Gage control to MIL-STD-45662
- Penetrant inspection to MIL-STD-6866
- Radiographic inspection to MIL-STD-453, MIL-STD-2175
- Heat treat to MIL-H-6088
- N.D.T. to MIL-STD-410
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