8090 Aluminum Lithium Alloy Sheet Plate

Product Description

8090 aluminum lithium alloy sheet plate

8090 aluminum lithium alloy sheet plate is a medium strength damage resistant alloy with a density of 10% lower than that of 2024 and 7075 alloy, and its modulus of elasticity is 11% higher than that of the latter. It can be used for situations that require both damage resistance and low density.

The 8090 aluminum lithium alloy sheet plate has a very high low temperature strength and toughness, and the change is also more obvious than that of the conventional high strength aluminum alloy. When medium - strength 8090 alloy products are aged to peak state, they are not changed at high temperature.

Chemical Composition of 8090 Alloy

Alloy

Si

Fe

Cu

Mn

Mg

Cr

Li

Zn

Ag

Ti

Zr

Others

Al

Each

Total

8090

0.20

0.30

1.0~2.6

0.1

0.6~1.3

0.1

2.2~2.7

0.25

-

0.1

0.08~0.16

0.05

0.15

Remainder

The corrosion properties of 8090 alloy are closely related to the degree of artificial aging and microstructure, and have good resistance to exfoliation and corrosion in the atmosphere.

 

Alloy	Alloy series	Main Features	σb  Value/MPa	Work Temperature/ºC
8090	Al-Li-Cu-Mg-Zr	Heat treatment and strengthening alloy, medium strength, main supply varieties include thin plate, thick plate and overstock. Main development of heavy plate products, thick plate has T8E57, T7E102, its performance varies with varieties and status.	450~480	<100

Physical Property of 8090 aluminum lithium alloy sheet plate
Temper	Product		Tension Strength					tenacity
			Direction	RP0.2/MPa	Rm/MPa	50mm A/ %		Fracture direction and KIC or KC	KIC or KC
8090-T81	Resistance to damage without aluminum sheet <3.55mm	R	L L-T 45º	295~350	345~440		8~10	L-T(KC)	94~145
				295~325	385~450		10~12	T-L(KC)	85min
				265~340	380~435		14	S-L(KC)
8090-T8X	Medium strength thin plate	UR	L L-T 45º	380~425	470~490		4~5	L-T(KC)	75
				350~440	450~485		4~7	T-L(KC)	-
				305~450	380~415		4~11	S-L(KC)	-
8090 T8X	Medium strength thin plate	R	L L-T 45º	325~385	420~445		4~8	L-T(KC)	-
				325~360	420~440		4~8	T-L(KC)	-
				325~340	420~425		4~10	S-L(KC)	-
8090 T8711	Medium strength thin plate	UR	L L-T S-T 45º	380~450	460~515		4~6min	L-T(KC)	20~35
				365min	435min		4min	T-L(KC)	13~30
				360typ	465typ		-	S-L(KC)	16typ
				340min	420min		420min	-	-
8090 T8151	Damage resistant thick plate	UR	L L-T 45º	345~370	435~450		5min	L-T(KC)	35~49
				325min	435min		5min	T-L(KC)	30~44
				275min	425min		8min	S-L(KC)	25typ
8090 T851	Cold working die forgings and free forgings	UR	L L-T 45º	340~415	425~495		4~8	L-T(KC)	30typ
				325~395	405~475		3~6	T-L(KC)	20typ
				305~395	405~450		2~6	S-L(KC)	15typ
8090 T8511, T6511	Extruded aluminum profile	UR	longitudinal direction	395~450	460~510		3~6	-	-

 

Alloy	Aircraft model	Application part	Typical spare parts
8090	F-15,EH101	wing	Upper wing whole wall panel