After heat treated as above parameters, its tensile strength can reach over 340MPa and hardness over 105HB, as well as elongation over 12%, which were associated with the formation of fine and dispersed precipitates, leading to excellent age hardening.

• 热处理后,试样抗拉强度可达到340MPa以上,硬度可达到105HB以上,延伸率在12%25以上,析出相呈细小弥散状分布,对合金有很高的强化效果。