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Alloy Aurora

Designation

Name The value
Designation GOST Cyrillic Аврора
Designation GOST Latin Abpopa
Transliteration Avrora
The chemical elements -

Description

Aurora alloy used: for the manufacture of castings of various parts, shipbuilding, marine engineering and instrumentation.

Note

Manganese-copper alloy.

Standards

Name Code Standards
Castings from non-ferrous metals and alloys В84 OST 5Р.9209-82

Chemical composition

Standard C P Mn Si Ni Fe Cu Al Mo Zn Sn Pb
OST 5Р.9209-82 ≤0.1 ≤0.05 51-53 ≤0.1 1.5-2.5 2-3 The rest 1.5-2.3 0.2-0.7 2-4 ≤0.1 ≤0.05
Cu is the basis.
According to OST 5P.9209-82, the total content of impurities is ≤ 0.50%. Impurities, which are not regulated, are included in the total amount of impurities.

Mechanical characteristics

sT|s0,2, MPa σB, MPa d5, % Brinell hardness number, MPa
Casting as supplied. Without heat treatment
≥245 ≥490 ≥20 ≥140

Description mechanical marks

Name Description
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σB Limit short-term strength
d5 Elongation after rupture

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