| Specification | AMS 4130 | |
|---|---|---|
| Form | Die forging | |
| Temper | T6 | |
| Thickness, in. | ≤ 4.000 | |
| Basis | S | |
| Mechanical Properties: | ||
| Ftu, ksi: | ||
| L | 55 | |
| Ta | 52 | |
| Fty, ksi: | ||
| L | 33 | |
| Ta | 32 | |
| Fcy, ksi: | ||
| L | ||
| Ta | ||
| Fsu, ksi | ||
| Fbru, ksi: | ||
| (e/D = 1.5) | ||
| (e/D = 2.0) | ||
| Fbry, ksi: | ||
| (e/D = 1.5) | ||
| (e/D = 2.0) | ||
| e, percent: | ||
| L | 11 | |
| Ta | 8 | |
| E, 103 ksi | 10.3 | |
| Ec, 103 ksi | 10.5 | |
| G, 103 ksi | 3.9 | |
| μ | 0.33 | |
| Physical Properties: | ||
| ω, lb/in.3 | 0.101 | |
| C, Btu/(lb)(°F) | 0.23 (at 212°F) | |
| K, Btu/[(hr)(ft2)(°F)/ft] | 90 (at 77°F) | |
| α, 10-6 in./in./°F | See Figure 3.2.4.0 | |
2026 ALLOY
3.2.5.0 COMMENTS AND PROPERTIES —2026 is a 4.0Cu-1.3Mg-0.60Mn aluminum alloy used for extrusion of bars, rods, and profiles. These extrusions have been used typically for parts subject to cracking during forming operations and excessive warpage during machining processes, and for parts requiring high strength and damage tolerance, where fabrication does not normally involve welding.
Certain processing procedures may cause these extrusions to become susceptible to stress-corrosion cracking; ARP823 (Reference 3.2.1.0) recommends practices to minimize such conditions.
Extruded, solution heat treated and stress-relieved by stretching to produce a nominal permanent set of 1.5%, but not less than 1% nor more than 3%, to the T3511 temper. Solution heat treatment will be performed in accordance with AMS 2772.
Material specifications are shown in Table 3.2.5.0(a). Room temperature mechanical and physical properties are shown in Table 3.2.5.0 (b).
| Specification | Form |
|---|---|
| AMS 4338 | Extruded bars, rods, and profiles |