Designation
| Name |
The value |
| Designation GOST Cyrillic |
АМг4 |
| Designation GOST Latin |
AMg4 |
| Transliteration |
AMg4 |
| By chemical elements |
- |
| Name |
The value |
| Designation GOST Cyrillic |
1540 |
| Designation GOST Latin |
1540 |
| Transliteration |
1540 |
| By chemical elements |
1540 |
Description
Alloy Amg4 is used: for the manufacture of semifinished products by hot or cold deformation; welded cylinders for various purposes.
Note
The alloy system Al-Mg.
ISO 209−1 alloy brand Amg4 is the designation AlMg4 5086 and.
Standards
| Name |
Code |
Standards |
| Non-ferrous metals, including rare, and their alloys |
В51 |
GOST 4784-97, OST 1 92014-90 |
| Bars and shapes |
В52 |
OST 1 92093-83 |
Chemical composition
| Standard |
Mn |
Cr |
Si |
Fe |
Cu |
Al |
Ti |
Zn |
Mg |
Be |
| OST 1 92014-90 |
0.5-0.8 |
0.05-0.25 |
≤0.4 |
≤0.4 |
≤0.1 |
Rest |
0.02-0.1 |
≤0.2 |
3.8-4.5 |
0.002-0.005 |
| GOST 4784-97 |
0.2-0.7 |
0.05-0.25 |
≤0.4 |
≤0.5 |
≤0.1 |
Rest |
≤0.15 |
≤0.25 |
3.5-4.5 |
- |
Al is the base.
According to GOST 4784-97, the chemical composition is given for the AMg4 alloy. Mass fraction of each other impurity (not regulated) ≤ 0.05%, total mass fraction of other impurities ≤ 0.15%.
According to OST 1 92014-90 the chemical composition is given for AMg4 alloy. Mass fraction of each other impurity (not regulated) ≤ 0.05%, total mass fraction of other impurities ≤ 0.10%.
Mechanical properties
| sT|s0,2, MPa |
σU, MPa |
d5, % |
y, % |
| The bar in the state of delivery |
| ≥190 |
≥320 |
≥15 |
≥40 |
Description mechanical marks
| Name |
Description |
| sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σU |
Limit short-term strength |
| d5 |
Elongation after rupture |
| y |
The relative narrowing |
Physical characteristics
| Temperature |
Е, HPa |
r, kg/m3 |
R, Mr. · m |
| 20 |
71 |
2660 |
609 |
A description of the physical symbols
| Name |
Description |
| r |
Density |
| l |
Coefficient of thermal conductivity |
| R |
UD. the resistivity |
Technological properties
| Name |
The value |
| Weldability |
The alloy is well welded all types of welding - TIG, contact, spot, and seam welding. Weld joint efficiency is 0.9-0.95 % of the strength of the basic material. |
| Pressure treatment |
Well-deformed in hot and cold condition. |
| Corrosion resistance |
Alloy with excellent General corrosion resistance, not cloned to stress corrosion cracking and intergranular corrosion (especially in the annealed condition). For additional protection parts against corrosion is anodizing or applied coatings. The corrosion resistance of the alloy (and the weld) high, is almost the same as that of pure aluminum. |
| Machinability |
Machinability is satisfactory. |
