A 6061-T6 aluminum, magnesium, silicon alloy, a corrosion resistant heat-treated alloys. High strength and corrosion resistance, good uniformity kai. Chemical composition; silicon si; 0.4-0.8 iron fe; 0.7 copper cu; 0.15-0.4 manganese mn; 0.15 Mg mg0.8-1.2 chrome cr0.04-0.35 zinc zn; 0.25 titanium ti0.15