7049 aluminium alloy

Aluminium alloy

The Aluminum / aluminum 7049 alloy is a forging aluminum alloy. It has a high stress, corrosion, and cracking resistance^[1] and high machinability. Alloy can be hot formed. It can not be weldable (in some cases, tungsten inert gas welding can applied).

Chemical Composition

No	Element ^[1]	Content (%)
1	Aluminium	88.7
2	Zinc	7.6
3	Magnesium	2.5
4	Copper	1.5
5	Chromium	0.15

Properties

No	Properties ^[1]	SI Unit
1	Density	2.6 to 2.8 g/cm3
2	Elastic modulus	70 to 80 GPa
3	Poisson's ratio	0.33
4	Thermal conductivity	154 W/mK
5	Tensile Strength, Ultimate ^[2]	517 MPa
6	Fatigue strength ^[3]	160 to 170 MPa
7	Specific Heat Capacity ^[3]	860 J/kg-K

Applications

structural forgings, especially in the missile or aircraft industries.
aircraft structural parts.^[4]
Forged aircraft and missile fittings ^[5]
landing gear cylinders ^[5]
extruded sections ^[5]
Structural forgings
Missile industries

Designation

Aluminium alloy EN AW 7049 has similarities to the following standard designations and specifications ;

Alloy 7049
UNS A97049
ASTM B209
DIN AlZn8MgCu

References

^ ^a ^b ^c "7049 aluminum alloy". 31 August 2012. Archived from the original on 2020-09-20.
^ "Aluminum 7049 properties".
^ ^a ^b "Alumum alloy 7049". Archived from the original on 2016-09-03.
^ "7049 aluminum alloy". Archived from the original on 2019-08-31.
^ ^a ^b ^c "Alloy 7049 applications" (PDF). Archived (PDF) from the original on 2019-02-15.