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EN AW-5051A | AlMg2 GDR penny from 1981

Numeric designationEN AW-5051A
Chemical designationAlMg2
StateGDR penny from 1981
EtchingBarker

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.