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Aluminum Alloy
Selection
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Which aluminum alloy
(242-T77, 319-T5, A356-T6) would you
choose for the cylinder
block based on performance and manufacturability requirements and
the nominal alloy properties listed below? |
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| Alloy |
Requirement |
Choose
242 - T77 |
Choose
319-T5 |
Choose
A356-T6 |
| Performance |
|
|
|
|
| Ultimate Tensile
Strength |
35
ksi / 245 MPa |
30
ksi /205 MPa |
30
ksi /205 MPa |
40
ksi/ 280 MPa |
| Tensile Yield Strength |
31
ksi / 215 MPa |
23
ksi / 157 MPa |
26ksi
/ 178 MPa |
31
ksi / 215 MPa |
| Ductility (%
Elongation) |
1.6% |
2% |
1.5% |
6% |
Brinell
Hardness (BHN) |
80 |
75 |
80 |
80 |
Fatigue
Strength
10^8 cycles |
8.5
ksi / 60 MPa |
10.5
ksi /74 MPa |
11
ksi / 77
MPa |
8.5
ksi / 60 MPa |
Pressure
Tightness
(1= Excellent, 5= Poor) |
1 |
3 |
2 |
1 |
| Manufacturability |
|
|
|
|
Castability/Fluidity
(1=
Excellent, 5= Poor) |
1 |
3 |
2 |
1 |
Machinability
(1= Excellent, 5= Poor) |
3 |
2 |
3 |
3 |
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Back
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Choose an
alloy! |
11 |
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