Aluminum Alloy Chainring

Specifications: Unit Type: Set Package Weight: 0.065kg (0.14lb.) Package Size: 8cm x 4cm x 4cm (3.15in x 1.57in x 1.57in)  Color: black, red, blue, green, purple, gold, silver    Features:  Zinc is the main alloy element in 7075. Add some magnesium to the alloy containing 3% -7.5% zinc, MgZn2 with significant strengthening effect can be formed then. The heat treatment effect for this alloy is far better than the aluminum-zinc binary alloy. If zinc and magnesium content in the alloy is increased, the tensile strength will be further improved. But its ability to resist corrosion and exfoliation?corrosion will be declined. Through the heat treatment, it can reach a very high strength.