Alloy AK5M4
Designation
| Name |
The value |
| Designation GOST Cyrillic |
АК5М4 |
| Designation GOST Latin |
AK5M4 |
| Transliteration |
AK5M4 |
| The chemical elements |
- |
Description
Alloy AK5M4 used: for the manufacture of ingots and shaped castings by various casting methods (sand casting, investment casting, gravity die casting, pressure casting), model alloy.
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, STP М287-78 |
| Castings from non-ferrous metals and alloys |
В84 |
OST 1 80029-83 |
Chemical composition
| Standard |
Mn |
Si |
Ni |
Fe |
Cu |
Al |
Ti |
Zn |
Mg |
| STP М287-78 |
0.2-0.6 |
3.5-6 |
≤0.5 |
≤1 |
3-5 |
The rest |
0.05-0.2 |
≤1.5 |
0.2-0.5 |
Al is the base.
According to GOST 1583-93, the iron content is specified for casting in sand molds and for investment models. The iron content for molding in the mold is ≤ 1.20%, for die casting ≤ 1.40%. The amount of impurities accounted for should be for casting in sand molds and for waxed models ≤ 2.80%, casting in chill mold ≤ 3.00%, casting ≤ 3.20%.
According to the STS M287-78, the amount of impurities to be accounted for should be for casting in sand molds and in chill molds ≤ 2.80%. The iron content is indicated for casting in sand molds and in chill molds.
Mechanical characteristics
| σB, MPa |
d |
Brinell hardness number, MPa |
| Casting. Without heat treatment |
| ≥118 |
- |
≥60 |
| ≥157 |
≥1 |
≥70 |
| Casting. T6 mode: Quenching in water from 480-500 °C (delay of 5-7 h) + Complete artificial aging at 160-180 °C (exposure 5-7 hours) |
| ≥196 |
≥0.5 |
≥90 |
Description mechanical marks
| Name |
Description |
| σB |
Limit short-term strength |
| d |
Elongation after rupture |
Physical characteristics
| Temperature |
r, кг/м3 |
| 20 |
2650 |
A description of the physical symbols
| Name |
Description |
| l |
Coefficient of thermal conductivity |
| С |
Specific heat |
