3.8.1.0
Comments and Properties — A201.0 is a high-strength, heat-treatable Al-Cu-Ag cast-
ing alloy. In the T7 (overaged) temper, it possesses high strength, moderate ductility and optimum resistance to stress-corrosion cracking. Refer to Section 3.1.3.4 for comments regarding the weldability of the alloy.
A material specification covering this alloy is presented in Table 3.8.1.0(a). Room-temperature mechanical and physical properties are presented in Table 3.8.1.0(b). The effect of temperature on thermal expansion is shown in Figure 3.8.1.0.
| Specification | Form |
|---|---|
| AMS-A-21180 | Casting (T7 temper) |
The temper index for A201.0 is as follows: Section: 3.8.1.1 Temper: T7
3.8.1.1
T7 Temper-Figure 3.8.1.1.6 presents a typical tensile stress-strain curve. Strain control fatigue data are shown in Figures 3.8.1.1.8(a) through (c).