Product Code: 5A12 Standard: range GB / T3191-1998 Features and application: high-magnesium alloy, the middle and upper strength. 5A12 aluminum alloy chemical composition: Al Al: margin silicon Si: ≤0.30 copper Cu: ≤0.05 magnesium Mg: 8.3 ~ 9.6 Zinc Zn: ≤0.20 Manganese Mn: 0.40 ~ 0.8 Titanium Ti: 0.05 ~ 0.15 Ni-Ni: ≤0.10 beryllium Be: ≤0.005 Antimony Sb: 0.004 ~ 0.05 iron Fe: 0.000 ~ 0.300 Note: Single: ≤0.05; Total: ≤0.10 Mechanical Properties: Tensile strength σb (MPa): ≥370 Conditions yield strength σ0.2 (MPa): ≥185 Elongation δ5 (%): ≥15 Note: longitudinal bars at room temperature mechanical properties of the sample size: bar diameter (square bar, hexagonal bar inscribed circle diameter) ≤150