ZL101 and ZL101A are both cast aluminum alloys from the Al-Si-Mg family. However, there are some key differences between them, mainly in terms of chemical composition precision, mechanical properties, and gas tightness requirements.
🧪 Main Differences in Chemical Composition
Element
ZL101 (%)
ZL101A (%)
Remarks
Iron (Fe)
≤ 0.20
≤ 0.12
Lower iron in ZL101A reduces brittle β-Fe phase, improving toughness and elongation
Manganese (Mn)
≤ 0.10
≤ 0.05
Tighter control in ZL101A prevents large intermetallic compounds
Other elements (Si, Mg, etc.)
Nearly identical
Nearly identical
Main differences lie in stricter impurity control for ZL101A
