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Alloy AK21M2,5N2,5 (UCILS-2)

Designation

Name The value
Designation GOST Cyrillic АК21М2,5Н2,5
Designation GOST Latin AK21M2,5H2,5
Transliteration AK21M25N25
The chemical elements -
Name The value
Designation GOST Cyrillic ВКЖЛС-2
Designation GOST Latin BKZhLC-2
Transliteration VKGLS-2
The chemical elements ВCoFeЛPb-2

Description

Alloy AK21M2,5N2,5 is used: for the manufacture of ingots and shaped castings in a mold.

Note

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

Standards

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

Chemical composition

Standard Mn Cr Si Ni Fe Cu Al Ti Zn Sn Pb Mg
GOST 1583-93 0.2-0.4 0.2-0.4 20-22 2.2-2.8 ≤0.9 2.2-3 The rest 0.1-0.3 ≤0.2 ≤0.01 ≤0.05 0.2-0.5
Al is the base.
According to GOST 1583-93, the iron content is specified for injection molding. The amount of allowable impurities should be for die casting ≤ 1.10%.

Mechanical characteristics

σB, MPa Brinell hardness number, MPa
Casting. Mode T1: Artificial aging without prior tempering at 200-220 °C (10-12 h exposure)
≥186 ≥100

Description mechanical marks

Name Description
σB Limit short-term strength

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