EN AW-5051A | AlMg2 GDR penny from 1981
| Numeric designation | EN AW-5051A |
|---|---|
| Chemical designation | AlMg2 |
| State | GDR penny from 1981 |
| Etching | Barker |
According to XRF, this is an Al-Mg alloy with about 2% Mg, 0.3% Si, 0.4% Fe and 0.2% Mn, this corresponds quite well to the wrought alloy EN AW-5051A (AlMg2). The dark inclusions are probably Mg2Si, the light gray intermetallic Al-Si-Fe-Mn phases.
