Designation
| Name |
The value |
| Designation GOST Cyrillic |
АК12ММгН |
| Designation GOST Latin |
AK12MMgH |
| Transliteration |
AK12MMgN |
| By chemical elements |
- |
| Name |
The value |
| Designation GOST Cyrillic |
АЛ30 |
| Designation GOST Latin |
AL30 |
| Transliteration |
AL30 |
| By chemical elements |
- |
Description
Alloy Ak12mmgn 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, and their alloys |
В51 |
GOST 1583-93 |
| Castings, 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 |
≤0.2 |
11-13 |
0.8-1.3 |
≤0.7 |
0.8-1.5 |
Rest |
≤0.2 |
≤0.2 |
≤0.01 |
≤0.05 |
0.8-1.3 |
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 properties
| σU, MPa |
d |
HB, MPa |
| Casting. Mode T1: Artificial aging without prior tempering at 180-200 °C (delay of 6-12 hours.) |
| ≥196 |
≥0.5 |
≥90 |
| Casting. T6 mode: Quenching in water from 515-525 °C (extract 4-6 hours) + Complete artificial aging at 175-185 °C (aging 6-8 hours) |
| ≥216 |
≥0.7 |
≥100 |
Description mechanical marks
| Name |
Description |
| σU |
Limit short-term strength |
| d |
Elongation after rupture |
| HB |
Brinell hardness number |
Physical characteristics
| Temperature |
r, kg/m3 |
| 20 |
2700 |
A description of the physical symbols
| Name |
Description |
| l |
Coefficient of thermal conductivity |
| С |
Specific heat |
