Mg
Al
Si
Fe
Mn
Cu
Ni
≥99.9%
≤0.008%
≤0.009%
≤0.004%
≤0.01%
≤0.003%
≤0.0005%
≥99.6%
≤0.02%
≤0.04%
≤0.03%
≤0.005%