2A16 Aircraft aerospace aluminum plate sheet profile forgings

Chemical Property of 2A16

Alloy

Others

Each

Total

2A16

0.30

6.0~7.0

0.4~0.8

0.05

－

0.10

0.10~0.20

0.20

0.05

0.15

Remainder

Alloy	Alloy Series	Main features
2A16	Al-Cu-Mn	2A16 Alloy is a heat treated Al-Cu-Mn system heat resistant aluminum alloy, and it is a kind of cryogenic alloy, which can be used at very cold temperature. It has high endurance strength at 250~350 C, which can be used for a long time in this temperature range. Its room temperature strength is lower than that of 2A12 alloy. The alloy has good weldability, and can be used for electric welding, roll welding and argon arc welding. The friction stir welding has excellent performance. After solid solution treatment, the natural failure rate of the alloy is slow, the incubation period is long and the application under artificial aging is one of the most deformation aluminum alloys used in the spacecraft.

Technical indexes of common 2A16 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
2A16	Aluminum sheet	O	0.3～10.0	≤235	－	15	～	YS/T 212
		T4		275	－	12	～
		T6		375	275	8	～
		T62		375	265	8	～
		O	1.0～4.0	≤235	－	15	～	GJB 2053
		T4		275	－	12	～
		T6		375	275	8	～
		T62		375	265	8	～
2A16	Large size aluminum sheet	O	0.5～10.0	≤235	－	15	～	YS/T 214
		T4		275	－	12	～
		T6		375	275	8	～
		T62		375	265	8	～
	Aluminum plate	T6	11~18	375	275	8	～	GB 3193
		T4	11~18	275	－	12	～	GB 3193
		O	4~6	≤235	－	15	～	GJB 2662
		T4		275	－	12	～
		T6		370	275	8	～
		T5	>10~40	370	275	8	～
		T62	5~10	370	265	8	～
	Aluminum round bar	T6	All thickness	355	235	8
		T62	≤150	355	235	8
		T6	5~150	350	235	8
		T6	≤240	355	235	8
	Aluminum profile	T6	All thickness	345	235	8

Alloy	Temper	Aircraft Type	Application parts and typical parts
2A16	Aluminum sheet： O、T4、T6、T62 Aluminum plate： O、T4、T6、T62 Aluminum round bar、Aluminum profile： T6、T62 Aluminum forgings： T6	MIG, B737-300，A320，Y8，ARJ21，JH7，J10	Rocket fuel tank, engine blade, airtight cockpit, head hood, airfoil whole mailbox, body interior structure, etc.

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