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AlBeMet® 140 is a metal matrix composite of 40% beryllium and the balance aluminum. The product is primarily available as sheet.
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Extruded |
Rolled |
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Longitudinal |
Transverse |
Longitudinal |
Transverse |
| Minimums |
| |
ksi |
MPa |
ksi |
MPa |
ksi |
MPa |
ksi |
MPa |
| Ultimate Tensile Strength |
NA |
NA |
NA |
NA |
38 |
262 |
38 |
262 |
| Yield Strength |
NA |
NA |
NA |
NA |
25 |
172 |
25 |
172 |
| Elongation |
NA |
NA |
NA |
NA |
9% |
9% |
9% |
9% |
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| Typical Values |
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ksi |
MPa |
ksi |
MPa |
ksi |
MPa |
ksi |
MPa |
| Young's Modulus |
23,000 |
158,500 |
23,000 |
158,500 |
23,000 |
158,500 |
23,000 |
158,500 |
| Ultimate Tensile Strength |
41 |
283 |
39 |
269 |
39.3 |
271 |
39.5 |
272 |
| Yield Strength |
30 |
207 |
29 |
200 |
27 |
186 |
27 |
186 |
| Elongation |
13.0% |
13.0% |
12.0% |
12.0% |
15% |
15% |
11% |
11% |
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Mill Hard Properties - Click Here
| Room Temperature (all vary with temperature) |
| Density |
2.28 |
g/cm3 |
0.082 |
lb./in3 |
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| Electrical Conductivity |
IACS |
(ASTM B193) |
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| Thermal Conductivity |
210 |
W / moC |
Click Here for Diffusivity |
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| Poisson' s Ratio |
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| CTE, Coefficient of Thermal Expansion |
16 |
ppm / oC |
8.9 |
ppm / oF |
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| Specific Heat @ 20oC |
1280 |
J / Kg oK |
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BTU/ lb oF |
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| Melting Point oC(oF) |
1082 |
oC |
1980 |
oF |
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| Al/Be Eutectic |
643 |
oC |
1190 |
oF |
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| |
| |
Extruded |
Rolled |
| |
Longitudinal |
Transverse |
Longitudinal |
Transverse |
| |
ksi |
MPa |
ksi |
MPa |
ksi |
MPa |
ksi |
MPa |
| Fatigue |
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| Axial Fatigue, Endurance Limit of 107 |
NA |
NA |
NA |
NA |
22 |
152 |
22 |
152 |
| R R Moore Rotating Beam Fatigue (R=-1), Endurance Limit of 5x108 (As Extruded) |
22.5 |
155 |
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| Fracture Toughness KIC , (Kq sheet), ksi ( in1/2) & MPa(m1/2) |
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|
10 |
11 |
55 |
60 |
55 |
60 |
| Precision Elastic Limit |
3.2 |
22 |
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| Bolt Bearing |
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| UTS e/D 1.5 |
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62.4 |
430 |
61.4 |
423 |
| YS e/D 1.5 |
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45.1 |
311 |
44.1 |
304 |
| UTS e/D 2.0 |
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77.4 |
534 |
77.3 |
533 |
| YS e/D 2.0 |
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54.9 |
379 |
53.1 |
366 |
| YS e/D 2.0 |
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54.9 |
379 |
53.1 |
366 |
| Hardness |
33 HRb |
33 HRb |
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Min. |
Max. |
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| Beryllium |
38% |
42% |
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| Aluminum |
Balance |
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| Oxygen |
--- |
1.0% |
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| Carbon |
--- |
0.1% |
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| Other metallics, each |
--- |
0.2% |
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| Minimum Bend Radius |
4 t at room temperature for 0.030 and 0.060 sheet |
| Coatings |
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| Heat Treating |
AlBeMet® 140 can be stress relieved at 925 oF for 2 hours and furnace cooled. There is no temperature-dependent strengthening mechanism. Mill hardened material may soften. |
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