Alloy 1161

Designation

Name The value
Designation GOST Cyrillic 1161
Designation GOST Latin 1161
Transliteration 1161
By chemical elements 1161

Description

Alloy 1161 applies: for the production of high-strength extruded semifinished products (panels, profiles) and details of the power elements of the aircraft.

Note

The alloy system Al-Cu-Mg-Zr.

Standards

Name Code Standards
Non-ferrous metals, including rare, and their alloys В51 OST 1 90048-90

Chemical composition

Standard Mn Si Ni Fe Cu Al Ti Zn Zr Mg
OST 1 90048-90 0.2-0.8 ≤0.1 ≤0.15 ≤0.15 3.1-4 Rest ≤0.1 ≤0.1 0.08-0.25 1.2-1.8
Al is the base.
According to OST 1 90048-90 the total mass fraction of other impurities is ≤ 0.10%. When manufacturing compressed semi-finished products (panels and profiles) from alloy 1161, the content of alloy elements is set as follows: copper - 3.35-3.85%, magnesium - 1.40-1.80%, manganese - 0.40-0.70, zirconium - 0,08-0,16%, titanium 0,03-0,07%, silicon - not more than 0,050%.

Mechanical properties

Section, mm σU, MPa d5, %
Plates are pressed in the state of delivery
390-395 4.4-4.8

Description mechanical marks

Name Description
σU Limit short-term strength
d5 Elongation after rupture