Alloy AK9M2

Designation

Name The value
Designation GOST Cyrillic АК9М2
Designation GOST Latin AK9M2
Transliteration AK9M2
By chemical elements -

Description

Alloy AK9M2 used: for the manufacture of ingots and shaped castings in a variety of ways of casting (chill casting, injection molding).

Note

Aluminum foundry alloy of the system Al-Si-Cu.

Standards

Name Code Standards
Non-ferrous metals, including rare, and their alloys В51 GOST 1583-93, TU 48-00195817-11-92
Castings, non-ferrous metals and alloys В84 OST 1 80029-83

Chemical composition

Standard Mn Cr Si Ni Fe Cu Al Ti Zn Mg
GOST 1583-93 0.1-0.4 ≤0.1 7.5-10 ≤0.5 ≤1 0.5-2 Rest 0.05-0.2 ≤1.2 0.2-0.8
Al is the base.
According to GOST 1583-93, the iron content is indicated for casting in chill molds. Casting in sand molds and waxed models from this alloy is usually not made. The iron content for injection molding should be ≤ 1.20%. The amount of allowable impurities should be for die casting ≤ 2.60%, die casting ≤ 2.80%. The total content of lead and tin should be ≤ 0.15%.

Mechanical properties

σU, MPa d HB, MPa
Casting. Without heat treatment
≥186 ≥1.5 ≥70
≥196 ≥1.5 ≥75
Casting. T6 mode: Quenching in water from 510-520 °C (delay of 5-7 h) + Complete artificial aging at 195-205 °C (exposure 1-2 hours)
≥274 ≥1.5 ≥85

Description mechanical marks

Name Description
σU Limit short-term strength
d Elongation after rupture
HB Brinell hardness number