Like 2011, This serves as well a general, Purpose alloy for automatic screw machine functionality is paramount stronger than 2011, But harder to machine and cannot have the fine chip associated with 2011 you will find it to be encouraged for heavy, Duty parts as a result of its high strength. Workability is fair, With ductility and formability considered better that 2014. Arc and resistance weldability are satisfactory. Corrosion resistance is fair. This item is employed for for rivets, Fasteners and aircraft components. Technical data sheetchemical composition limitsweight%alsifecumnmgcrzntiothers eachother total2017 usarem0. 20, 0. 80. 7 max3. 5, 4. 50. 40, 1. 00. 40, 0. 80. 10 max0. 25 up to 0. 15, Down to 0. 05, Up to 0. 15 maxweight%alsifecumnmgcrznzr, Tiothers eachother total2017a eaarem0. 20, 0. 80. 7 max3. 5, 4. 50. 40, 1. 00. 40, 1. 00. 10 max0. 25 max0. 25 limit of 0. 05 limit of 0. 15 limit of aluminum alloy 2017 2017 a has high strength with excellent fatigue strength. Alloy 2017 furthermore includes highly good machining characteristics. It is well-suited for welding only by resistance welding. Alloy 2017 2017 a serves the purpose of various applications from high strength structural components, Aircraft, Military equipment, Machine construction, Rivets.