2014 is applied to occasions requiring high strength and hardness (including high temperature). Heavy aircraft, forgings, thick plates and extruded materials, wheels and structural elements, multi-stage rocket first-stage fuel tanks and spacecraft parts, truck frame and suspension system parts.
2017 is the first 2XXX series alloy to obtain industrial application. The current application range is relatively narrow, mainly for rivets, general mechanical parts, structural and transportation structural parts, propellers and accessories.
2024 Aircraft structure, rivets, missile components, truck wheel hubs, propeller elements and various other structural parts.
2124 Aerospace Structure Parts
2218 Aircraft engine and diesel engine pistons, aircraft engine cylinder heads, jet engine impellers and compressor rings.
2219 Aerospace rocket welding oxidizer tank, supersonic aircraft skin and structural parts, working temperature is -270~300℃. Good weldability, high fracture toughness, T8 state has a high resistance to stress corrosion cracking.
2319 Welding and drawing.
2618 Die forgings and free forgings. Pistons and aircraft engine parts.
2A11 Medium-strength structural parts of aircraft, propeller blades, transportation vehicles and building structural parts. Medium strength bolts and rivets for aircraft.
2A12 Aircraft skins, bulkheads, ribs, spars, rivets, etc., structural parts for construction and transportation.
