Designation
| Name |
The value |
| Designation GOST Cyrillic |
АКМ |
| Designation GOST Latin |
AKM |
| Transliteration |
AKM |
| By chemical elements |
- |
Description
Alloy AKM is used: for the manufacture of ingots, pressure treated, and podrihtovali in the manufacture of aluminum alloys.
Standards
| Name |
Code |
Standards |
| Secondary non-ferrous metals, alloys, and waste |
В57 |
GOST 1131-76 |
| Bars |
В55 |
GOST 21488-97 |
| Sheets and strips |
В53 |
GOST 21631-76 |
| Bars and shapes |
В52 |
GOST 8617-81, GOST 13616-97, GOST 13617-97, GOST 13618-97, GOST 13619-97, GOST 13620-90, GOST 13621-90, GOST 13622-91, GOST 13623-90, GOST 13624-90, GOST 13737-90, GOST 13738-91, GOST 17575-90, GOST 17576-97, GOST 29296-92, GOST 29303-92, GOST Р 50066-92, GOST Р 50067-92, GOST Р 50077-92 |
Chemical composition
| Standard |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
Al |
Ti |
Zn |
Mg |
| GOST 1131-76 |
0.2-0.8 |
≤0.2 |
0.8-2.2 |
≤0.1 |
≤1 |
1.2-2.6 |
Rest |
≤0.2 |
≤1 |
0.8-1.4 |
Al is the base.
According to GOST 1131-76, the total content of other impurities is ≤ 0.20%.
Mechanical properties
| Section, mm |
σU, MPa |
d5, % |
d |
| Sheet metal in delivery condition of alloy AKM, AKM (normal plating), ACMB (B with plating technology) according to GOST 21631-76 (samples transverse) |
| 1-10.5 |
≥315 |
- |
≥10 |
| 1-10.5 |
≤245 |
- |
≥10 |
| Extruded normal strength according to GOST 8617-81 in the delivery condition (longitudinal samples) |
|
≤196 |
≥14 |
- |
|
≥314 |
≥12 |
- |
|
≥333 |
≥10 |
- |
| The pressed bars normal strength in the delivery condition according to GOST 21488-97 (longitudinal samples) |
| 8-300 |
≤245 |
≥12 |
- |
| 8-300 |
≥315 |
≥12 |
- |
Description mechanical marks
| Name |
Description |
| σU |
Limit short-term strength |
| d5 |
Elongation after rupture |
| d |
Elongation after rupture |
