Alloy CA4
Designation
| Name |
The value |
| Designation GOST Cyrillic |
ЦА4 |
| Designation GOST Latin |
TsA4 |
| Transliteration |
TsA4 |
| The chemical elements |
ZnAl4 |
Description
Alloy CA4 is used: for molding parts of automobile, tractor, electrical and other industries; casting parts of devices non-critical parts with stable dimensions.
Note
The alloy has good fluidity, good corrosion resistance (but less than the alloy Ca4o).
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 19424-97 |
≤0.015 |
≤0.05 |
≤0.03 |
3.5-4.3 |
The rest |
≤0.002 |
≤0.01 |
0.03-0.06 |
≤0.005 |
| GOST 25140-93 |
≤0.015 |
≤0.07 |
≤0.06 |
3.5-4.5 |
The rest |
≤0.002 |
≤0.01 |
0.02-0.06 |
≤0.005 |
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 mass fraction of copper as an alloying element is allowed up to ≤ 0.10%. At the request of the consumer, the mass fraction of lead should be ≤ 0.006%.
Mechanical characteristics
| Section, mm |
σB, MPa |
d5, % |
Brinell hardness number, MPa |
| Castings according to GOST 25140-93 |
|
≥196 |
≥1.2 |
≥70 |
|
≥256 |
≥1.8 |
≥70 |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| σB |
Limit short-term strength |
| d5 |
Elongation after rupture |
Physical characteristics
| Temperature |
r, кг/м3 |
l, Вт/(м · °С) |
a, 10-6 1/°С |
С, Дж/(кг · °С) |
| 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 |
