Super Hard 2024 Aluminum Strip

 What is 2024 aluminum alloy

2024 aluminum alloy is a kind of high-strength duraluminum, which belongs to the Al-Cu-Mg series. It is mainly used to make various high-load parts and components. It can be strengthened by heat treatment and has medium plasticity in the quenched and just-quenched state. The corrosion resistance is not high, and anodizing treatment and painting methods are often used to improve its corrosion resistance.

It is mainly used to make various high-load parts and components (but not including stamping forgings), such as air frame, skin, ribs, spars, rivets and other working parts below 150 °C on aircraft.

2024 aluminum stripe chemical composition

Alloy	Si	Fe	Cu	Mn	Mg	Cr	Zn	Ti	Other		Al
									each	total
2024	0.5	0.5	3.8-4.9	0.3-0.9	1.2-1.8	0.10	0.25	0.15	0.05	0.15	Remainder

Physical properties

Alloy	Tensile strength Rm/Mpa	Yield Strength Rp0.2/Mpa	Elongation %	Hardness/HBWα	Density (20°C) (g/cm3)
2024-t4	425	275	14	120	2.8

Main tempers

2024 aluminum strip can be produced in an annealed condition as well as various tempers – T3, T4, and T8. Some of the most common available tempers of this alloy are 2024-T351, 2024-T851, 2024-T6, 2024-T4, 2024-T3, 2024-O.

Alloy-temper	Tensile strength(ksi)	Yield strength(ksi)	Elongation(%)
2024-O	17	11	18
2024-T3	70	50	16
2024-T4	68	47	20

Application

1. Aircraft structure (skin, frame, rib beam, bulkhead, etc.)

2. Boat

3. Cruise missile prefabricated components

4. Truck wheel

5. Aircraft propeller components and various other parts

6. Aircraft siding

7. Beauty equipment

8. Notebook case

9. Gears

10. Cylinders

11. Pistons

Original source: https://www.aluminumstrip24.com/products/2024-aluminum-strip.html

What Are 2024T3 and 7075T6 Properties

 2024 aluminum is an Al-Cu-Mg aluminum alloy with a density of 2.73 g/cm, which can be strengthened by heat treatment, and has moderate plasticity in the quenched and just quenched states. It has poor corrosion resistance, but it can be effectively protected by covering it with pure aluminum; it is prone to cracks during welding, but it can be welded or riveted by special processes.

The common tempers of 2024 aircraft aluminum alloy is T3, T4, T351 and T851. What are aluminium 2024 t3 properties? It has an ultimate strength of 62000 PSI and a shear strength of 40000 PSI. 2024 plate has an ultimate tensile strength of 400–430 MPa (58–62 ksi) and a yield strength of at least 270–280 MPa (39–40 ksi). It has an elongation of 10-15%.

2024 t3 aluminum sheet is considered an aircraft alloy due to its strength and also has excellent fatigue resistance. Soldering is generally not recommended. Typical uses for 2024-T3 aluminum sheet are fuselage and wing skins, roofs and aircraft structures.

7075 aluminum sheet is a cold-processed forging alloy with high strength, far superior to mild steel. Zinc is the main alloying element in 7075. Adding magnesium to an alloy containing 3%-7.5% zinc can form MgZn2 with a significant strengthening effect, making the heat treatment effect of the alloy far better than that of aluminum-zinc binary alloys. It is especially suitable for manufacturing aircraft structures and other high-stress structures that require high strength and corrosion resistance.

7075 aluminum has O, T6, T651 and T7 tempers. What are Al 7075 t6 properties? 7075 t6 has an ultimate tensile strength of 510–540 MPa (74,000–78,000 psi) and a yield strength of at least 430–480 MPa (63,000–69,000 psi). It has an elongation at failure of 5-11%.

7075 T6 is typically achieved by homogenizing casting 7075 at 450°C for several hours, quenching and then aging at 120°C for 24 hours. This produces the peak strength of the 7075 alloy. The strength comes mainly from finely dispersed eta and eta' precipitates within the grains and along the grain boundaries.

Original Source:https://www.aircraftaluminium.com/a/what-are-2024t3-and-7075t6-properties.html

The Main Aircraft Skin Material

 Aircraft skin materials refer to the dimension-shaped components enclosed outside the skeleton structure of the aircraft. It can be regarded as the "skin" of the aircraft and is an important part of the aerodynamic structure of the aircraft.

Early aircraft also used materials such as linen, cloth, canvas, etc. to make the skin of the aircraft. However, the current aircraft generally adopts metal skin because of its structural strength, including the aerodynamic load it bears. The performance of aluminum alloy is very good like lightweight and stable properties, so most of the current military aircraft and civil aircraft in the world use aluminum alloy for the manufacture of aircraft skins.

The aluminum alloys used in large aircraft structures in the world today are mainly high-strength 2xxx series (2024, 2224, 2324, 2424, 2524, etc.) and ultra-high-strength 7xxx series (7075, 7475, 7050, 7150, 7055, 7085, etc.). Their proportion in civil passenger aircraft is about 38% and 45% respectively.

2000 series aluminum alloys use Cu as the main alloying element, which will have better improvement in strength, heat resistance and processing performance, and can maintain good strength stability and process performance at high temperature, which is mainly used in aerospace high-temperature resistant parts.

2024 aluminum is a typical hard aluminum alloy in the aluminum-copper-magnesium series. Its composition is more effective and its comprehensive performance is good. After heat treatment, 2024 aluminum alloy undergoes solid solution treatment to obtain relatively high compressive strength and ductility. Due to its high strength, it is generally used to produce skins, beams, bulkheads, and wings.

7000 series aluminum alloys use Zn as the main additive element. The toughness of the aluminum alloy is strengthened by heat treatment. The addition of Mg element can improve the hot deformation performance and expand the quenching range. 7000 series aluminum alloys are high-strength weldable alloys with high stress corrosion sensitivity.

7050 aluminum plate is an aircraft aluminum sheet that combines high strength, resistance to stress corrosion cracking, and toughness. It has low quench sensitivity and strength retention in thicker sections, making it especially suitable for thick plate applications (3" to 6" thick). Therefore, 7050 aluminum alloy sheet is the first choice for fuselage frame, bulkhead and wing skin.

Original Source:https://www.aircraftaluminium.com/a/the-main-aircraft-skin-material.html

The Main Aircraft Skin Material

 Aircraft skin materials refer to the dimension-shaped components enclosed outside the skeleton structure of the aircraft. It can be regarded as the "skin" of the aircraft and is an important part of the aerodynamic structure of the aircraft.

Early aircraft also used materials such as linen, cloth, canvas, etc. to make the skin of the aircraft. However, the current aircraft generally adopts metal skin because of its structural strength, including the aerodynamic load it bears. The performance of aluminum alloy is very good like lightweight and stable properties, so most of the current military aircraft and civil aircraft in the world use aluminum alloy for the manufacture of aircraft skins.

The aluminum alloys used in large aircraft structures in the world today are mainly high-strength 2xxx series (2024, 2224, 2324, 2424, 2524, etc.) and ultra-high-strength 7xxx series (7075, 7475, 7050, 7150, 7055, 7085, etc.). Their proportion in civil passenger aircraft is about 38% and 45% respectively.

2000 series aluminum alloys use Cu as the main alloying element, which will have better improvement in strength, heat resistance and processing performance, and can maintain good strength stability and process performance at high temperature, which is mainly used in aerospace high-temperature resistant parts.

2024 aluminum is a typical hard aluminum alloy in the aluminum-copper-magnesium series. Its composition is more effective and its comprehensive performance is good. After heat treatment, 2024 aluminum alloy undergoes solid solution treatment to obtain relatively high compressive strength and ductility. Due to its high strength, it is generally used to produce skins, beams, bulkheads, and wings.

7000 series aluminum alloys use Zn as the main additive element. The toughness of the aluminum alloy is strengthened by heat treatment. The addition of Mg element can improve the hot deformation performance and expand the quenching range. 7000 series aluminum alloys are high-strength weldable alloys with high stress corrosion sensitivity.

7050 aluminum plate is an aircraft aluminum sheet that combines high strength, resistance to stress corrosion cracking, and toughness. It has low quench sensitivity and strength retention in thicker sections, making it especially suitable for thick plate applications (3" to 6" thick). Therefore, 7050 aluminum alloy sheet is the first choice for fuselage frame, bulkhead and wing skin.

Original Source:https://www.aircraftaluminium.com/a/the-main-aircraft-skin-material.html