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Alloy ZnAl4Cu3A

Designation

Name The value
Designation GOST Cyrillic ZnAl4Cu3A
Designation GOST Latin ZnAl4Cu3A
Transliteration ZnAl4Cu3A
The chemical elements ZnAl4Cu3A

Description

Alloy ZnAl4Cu3A used: for the manufacture of alloy ingots intended for the production of various parts of automotive and electrical industry and other branches of engineering that require high strength.

Note

Alloy high purity (the letter a at the end of the designation marks).
The alloy has good fluidity, high strength, good corrosion resistance. The variability of the sizes of the alloy to 0.5%.

Standards

Name Code Standards
Non-ferrous metals, including rare metals, and their alloys В51 GOST 19424-97, GOST 25140-93

Chemical composition

Standard Si Fe Cu Al Zn Sn Pb Mg Cd
GOST 25140-93 ≤0.015 ≤0.06 2.5-3.7 3.5-4.3 The rest ≤0.001 ≤0.004 0.02-0.06 ≤0.003
GOST 19424-97 - ≤0.03 2.5-3.5 3.5-4.3 The rest ≤0.001 ≤0.003 0.03-0.06 ≤0.002
Zn is the basis.
According to GOST 19424-97 in the alloy for the production of pigs, the mass fraction of the main components and specific impurities can be changed by agreement of the consumer with the manufacturer.
According to GOST 25140-93, the total mass fraction of lead, cadmium and tin should be ≤ 0.007%.

Mechanical characteristics

Section, mm σB, MPa d5, % Brinell hardness number, MPa
Castings according to GOST 25140-93
≥235 ≥1 ≥90
≥215 ≥1 ≥85

Description mechanical marks

Name Description
Section Section
σB Limit short-term strength
d5 Elongation after rupture

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