7055 aluminium alloy explained

7055 alloy is heat treatable wrought aluminum alloy.^[1] It has high ultimate tensile strength value of 593 MPa.

Chemical Composition

Element	Content (%)
Aluminum	85.9 - 88.5
Zinc	7.6 - 8.4
Magnesium	1.8 - 2.3
Copper	2 - 2.6
Iron	≤ 0.15
Zirconium	0.080 - 0.25
Manganese	≤ 0.050
Chromium	≤ 0.040
Silicon	≤ 0.10
Titanium	≤ 0.060
Other (each)	≤ 0.050
Other (total)	≤ 0.15

Properties

Properties	SI Unit
Density	2.86 g/cm^3
Ultimate Tensile Strength^[2]	593 MPa
Elongation at Break	9.0% to 12.0%
Fracture Toughness	24.2 MPa-m½

Applications

1. Aerospace sector
2. High strength requirement areas

External links

1. Single-aging characteristics of 7055 aluminum alloy
2. 7055: High-Strength Plate and Extrusion Alloy
3. Microstructure characterization of 7055-T6, 6061-T6511 and 7A52-T6 Al alloys subjected to ballistic impact against heavy tungsten alloy projectile
4. Grain size prediction and investigation of 7055 aluminum alloy inoculated by Al–5Ti–1B master alloy,Journal of Alloys and Compounds - X-MOL
5. ShieldSquare Captcha

Notes and References

1. Web site: 9 May 2013. Aluminium / Aluminum 7055 Alloy (UNS A97055).
2. Web site: Aluminum 7055-T77511 Extrusions.