2124 Aircraft aerospace aluminum alloy plate

Chemical composition of 2024 alloy

Alloy

Others

Each

Total

2024

0.50

3.8~4.9

0.3~0.9

1.2~1.8

0.10

0.25

0.15

0.05

0.15

Remainder

Alloy	Alloy series	Main features	Σb Value/MPa	Working temperature /℃
2024	Al-Cu-Mg	The heat-treated reinforced alloy is a common medium strength structural material, which can produce all kinds of semi-finished products. The commonly used T3 and T4, has high toughness and plasticity, good fatigue performance and anti crack performance, but poor corrosion resistance, less than 1mm thickness or molding, aluminum sheet and plate should be used, the short transverse properties and stress corrosion resistance are poor, not fusion welding and brazing.	390～485	<150

Technical indexes of 2024 aluminum alloy
Alloy	Type	Temper	δ or d/mm	σ_b/MPa	σ_{p 0.2}/MPa	δ/%	K_{IC or} K_C/MPa	Technical standard
2024	Clad aluminum sheet	T62	1.0～6.3	427	336	5	～	Q/6S 838 --1990
	Aluminum plate	T351	6.5～45	434	290	8	～	Q06S 717--1989
	Clad or nonclad aluminum sheet	O	1.5～5.9	≤27～220	≤96	12	～	JT--CL--60
	Aluminum profile	O	All sizes	≤241	≤131	12	～	JT-CL-61
		T8511	All sizes	456	386	5	～
		T62	≤12.7	441	345	5	～
2024	Aluminum sheet	O	0.254~12.7	≤220	96	12	～	AMS 4279A-1998 AMS 4339-1994 AMS 4037 AMS QQ/A-250/4 AMS QQ/A-250/5
		O	>12.7~44.5	≤220		12	～
		T3	0.2032~0.2286	434	289	10	～
		T42	0.254~0.508	427	262	12	～
			>0.508~6.3246	427	262	15	～
			6.35~12.67	427	262	12	～
			12.7~25.4	420	262	7	～
			>25.4~50.8	413	262	6	～
			>50.8~76.2	400	262	4	～
		T851	12.7~25.4	455	400	5	～
		T851	>25.4~38.0746	455	393	5	～

Alloy	Temper	Type		Size/inch	Test Direction	Ftu/Ksi		Fty/ksi
Alloy	Temper	Type		Size/inch	Test Direction	A	B	A	B
2024	T3	Aluminum sheet		δ0.01~0.128	L	64	65	47	48
	T3	Aluminum sheet		δ0.01~0.128	T	63	64	42	43
	T351	Aluminum sheet		δ0.129~0.249	L	65	66	47	48
				δ0.129~0.249	T	64	65	42	43
				δ0.250~0.499	L	64	66	48	50
				δ0.250~0.499	T	64	66	42	44
				δ0.500~1.000	L	63	65	48	50
				δ0.500~1.000	T	63	65	42	44
				δ1.001~1.500	L	62	64	47	50
				δ1.001~1.500	T	62	64	42	44
				δ1.501~2.000	L	62	64	47	49
				δ1.501~2.000	T	62	64	42	44
				δ2.001~3.000	L	60	62	46	48
					T	60	62	42	44
					S	52	54	38	40
				δ3.001~4.000	L	57	59	43	46
					T	57	59	41	43
					S	49	51	38	39
	T4	Aluminum sheet		δ0.010~0.249	L	62	64	40	42
	T4	Aluminum sheet		δ0.010~0.249	T	62	64	40	42
	T81	Aluminum sheet		δ0.010~0.249	L	67	68	59	61
	T81	Aluminum sheet		δ0.010~0.249	T	67	68	58	60
	T851	Aluminum sheet		δ0.250~0.499	L	67	68	58	60
	T851	Aluminum sheet		δ0.250~0.499	T	67	68	58	60
	T3	Aluminum sheet		δ0.0080~0.009	L	59	60	44	45
				δ0.0080~0.009	T	58	59	39	40
				δ0.0100~0.062	L	60	61	44	45
				δ0.0100~0.062	T	59	60	39	40
				δ0.063~0.128	L	62	63	45	47
				δ0.063~0.128	T	61	62	40	42
				δ0.129~0.249	L	63	64	45	47
				δ0.129~0.249	T	62	63	4	42
	T351	Clad aluminum sheet		δ0.250~0.499	L	62	64	46	48
				δ0.250~0.499	T	62	64	40	42
				δ0.500~1.000	L	61	63	45	48
				δ0.500~1.000	T	61	63	40	42
				Δ1.001~1.500	L	60	62	45	48
				Δ1.001~1.500	T	60	62	40	42
				Δ1.501~2.000	L	60	62	45	47
				Δ1.501~2.000	T	60	62	40	42
				Δ2.001~3.000	L	58	60	40	46
					T	58	60	40	42
					S	52	54	38	40
				Δ3.001~4.000	L	55	57	39	41
					T	55	57	39	41
					S	49	51	38	39
	T4	Clad aluminum sheet		δ0.010~0.062	L	58	59	36	38
				δ0.010~0.062	T	58	59	36	38
				δ0.063~0.128	L	61	62	38	39
				δ0.063~0.128	T	61	62	38	39
	T42	Clad aluminum sheet	δ0.008~0.009		L	55	57	34	35
			δ0.008~0.009		T	55	57	34	35
			δ0.010~0.062		L	57	59	34	35
			δ0.010~0.062		T	57	59	34	35
			δ0.063~0.249		L	60	62	36	38
			δ0.063~0.249		T	60	62	36	38
	T851	Clad aluminum sheet	δ0.250~0.499		L	65	66	56	58
	T851	Clad aluminum sheet	δ0.250~0.499		T	65	66	56	58
	T3 T3510 T3511	Aluminum profile	The cross-sectional area less than 20 square inches δ≤0.249		L	57	61	42	47
			The cross-sectional area less than 20 square inches δ≤0.249		T	54	58	37	41
			The cross-sectional area less than 20 square inches δ0.250~0.499		L	60	62	44	47
					T	56	57	38	40
			The cross-sectional area less than 20 square inches δ0.500~0.749		L	60	62	44	47
					T	54	56	37	39
			The cross-sectional area less than 20 square inches δ0.750~1.499		L	65	70	46	54
					T	56	60	37	43
			The cross-sectional area less than 20 square inches δ1.500~2.999		L	70	74	52	54
					T	55	58	39	41
			The cross-sectional area less than 20 square inches δ3.000~4.999		L	70	74	52	54
					T	54	57	39	41
	T3	Aluminum pipe	δ0.018~0.024		L	64	66	42	45
			δ0.025~0.049		L	64	66	42	45
			δ0.050~0.259		L	64	66	42	45
			δ0.260~0.500		L	64	66	42	45

2024Welding properties
Alloy	Resistance welding	Melting welding	Argon arc welding	Note
2024	Good	Worse	Worse	For gas welding and argon arc welding of aluminum alloy as solder, tend to form crystalline cracks; 4A01 alloy solder, forming cracks tend to be significantly reduced, but the strength of welded joint is greatly reduced, such as heat treatment after welding, the joint strength is close to the substrate, but the ductility decreases.

Typical application of 2024 aluminum alloy
Alloy	Features	Temper
2024	In a typical aluminum alloy, good performance, high strength, good heat tolerance, used in the manufacture of 150 DEG working parts, heat treatment strengthening effect, poor corrosion resistance, can improve the corrosion resistance of aluminum.	Aluminum sheet： O、T3、T361、T4、T72、T861 Aluminum plate： O、T351、T361、T851、T861 Aluminum pipe：O、T3 Pipe、Profile、round bar、wire：O、T3、T3510、T3511、T81、T8510、T8511 Cold working aluminum round bar：O、T13、T351、T4、T6、T851 Cold working aluminum wire：O、T13、T36、T4、T6 Rivet wire： T4

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2124 Aircraft aerospace aluminum alloy plate

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