2st series aluminum

The 2XXX series is a typical hard aluminum alloy in the aluminum-copper-magnesium system. Its composition is relatively reasonable and its comprehensive performance is good. This alloy is produced in many countries and is the most widely used among hard aluminum alloys. The characteristics of this alloy are: high strength, certain heat resistance, and it can be used as working parts below 150°C. When the temperature is above 125°C, the strength of the 2XXX series alloy is even higher than that of the 7075 alloy. The forming properties under hot state, annealing and new quenching conditions are all good, and the heat treatment strengthening effect is significant, but the heat treatment process is strict. The corrosion resistance is poor, but it can be effectively protected by coating with pure aluminum; during welding, cracks are prone to occur, but special processes can be adopted for welding or riveting. It is widely used in aircraft structures, rivets, truck wheels, propeller components and other various structural parts.

• Common brand names:

2A01、2A02、2A04、2A06、2A10、2A11、2B11、2A12、2A13、2A14、2A16、2B16、2A17、2A20、2A21、2A25 、2A49、2A50、2A70、2A80、2A90、2004、2011、2014、2014A 、2214 、2017、2017A、2177、2218、2618、2219、2024、2124

• Such As

In 2011, it was used as a screw and for mechanical processing products that required excellent cutting performance.

In 2014, it was applied in situations requiring high strength and hardness (including at high temperatures). It was used in aircraft heavy components, forgings, thick plates and extruded materials, wheel and structural components, fuel tanks of the first stage of multi-stage rockets and spacecraft parts, truck frames and suspension system components.

2017 was the first 2XXX series alloy to be applied industrially. Currently, its application scope is relatively narrow, mainly including rivets, general mechanical parts, structural components for vehicles and transportation tools, propellers and accessories.

2024 is used for aircraft structures, rivets, missile components, truck wheels, propeller elements and various other structural parts.

2036 is used as a sheet metal component for car bodies.

2048 is used as structural components for aerospace vehicles and structural parts for weapons.

2124 is used as a structural component for aerospace vehicles.

2218 is used as pistons for aircraft engines and diesel engines, cylinder heads for aircraft engines, turbine blades for jet engines and compressor rings.

2219 is used as the oxidizer tank for aerospace rockets, as well as the skin and structural components of supersonic aircraft. Its working temperature ranges from -270℃ to 300℃. It has excellent weldability and high fracture toughness. In the T8 state, it has a very high ability to resist stress corrosion cracking.

2319 is used as the welding rod and filler material for welding 2219 alloy.

2618 is used for both forging parts and free forging parts. It is suitable for piston and aircraft engine components, rubber molding molds, and general heat-resistant components.

2A01 is used as structural rivets with a working temperature not exceeding 100℃.

2A02 is used as the axial compressor blades of a turbojet engine operating at a working temperature range of 200 to 300 degrees Celsius.

2A06 is used as rivets for aircraft structures operating at a temperature range of 150 to 250 degrees Celsius, and for aircraft structures with an operating temperature range of 125 to 250 degrees Celsius.

2A10 has a higher strength than 2A01 alloy and is used to manufacture aircraft structural rivets with a working temperature not exceeding 100℃.

2A11 is used as medium-strength structural components for aircraft, propeller blades, components for transportation vehicles and building structures. It is also used as medium-strength bolts and rivets for aircraft.

2A12 is used for aircraft skins, frames, wing ribs, wing beams, rivets, etc., as well as structural components of buildings and transportation vehicles.

2A14 is used for manufacturing complex-shaped free forging pieces and die forging pieces.

2A16 is used as a component for aerospace and aviation vehicles operating at a working temperature range of 250 to 300℃. It is a welding container and airtight cabin that functions under both room temperature and high-temperature conditions.

2A17 is used for aircraft parts operating at a working temperature range of 225 to 250 degrees Celsius.

2A50 is used for complex-shaped medium-strength parts.

2A60 is used in aircraft engine compressor wheels, air guide wheels, fans, impellers, etc.

2A70 is used for aircraft skins, as well as for aircraft engine pistons, air guides, wheels, and discs, etc.

2A80 is used for the compressor blades, rotors, pistons, expansion rings and other components of aircraft engines that operate at high temperatures.

2A90 is used as the piston of an aircraft engine