Alloy Ca4o

Designation

Name The value
Designation GOST Cyrillic ЦА4о
Designation GOST Latin TsA4o
Transliteration TsA4o
By chemical elements ZnAl4о

Description

Alloy Ca4o applies: for molding parts of automobile, tractor, electrical and other industries; casting details of the devices critical parts with stable dimensions.

Note

Alloy high purity (the letter «o» at the end indicate the marks).
The alloy has good fluidity, good corrosion resistance.

Standards

Name Code Standards
Non-ferrous metals, including rare, and their alloys В51 GOST 19424-97, GOST 25140-93, TU 48-3608-60-91

Chemical composition

Standard Si Fe Cu Al Zn Sn Pb Mg Cd
GOST 19424-97 ≤0.015 ≤0.05 ≤0.03 3.9-4.3 Rest ≤0.001 ≤0.004 0.03-0.06 ≤0.002
GOST 25140-93 ≤0.015 ≤0.06 ≤0.06 3.5-4.5 Rest ≤0.001 ≤0.005 0.02-0.06 ≤0.003
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 ≤ 0.009%. The mass fraction of copper as an alloying element is allowed up to ≤ 0.10%.

Mechanical properties

Section, mm σU, MPa d5, % HB, MPa
Castings according to GOST 25140-93
≥196 ≥1.2 ≥70
≥256 ≥1.8 ≥70

Description mechanical marks

Name Description
σU Limit short-term strength
d5 Elongation after rupture
HB Brinell hardness number

Physical characteristics

Temperature r, kg/m3 l, W/(m · °C) a, 10-6 1/°C С, J/(kg · °C)
20 6700 113 - 410
100 - - 260 -

A description of the physical symbols

Name Description
Е The normal elasticity modulus
l Coefficient of thermal conductivity
R UD. the resistivity