Alloy AMg5 (1550)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
АМг5 |
| Designation GOST Latin |
AMg5 |
| Transliteration |
AMg5 |
| The chemical elements |
- |
| Name |
The value |
| Designation GOST Cyrillic |
1550 |
| Designation GOST Latin |
1550 |
| Transliteration |
1550 |
| The chemical elements |
1550 |
Description
Alloy AMg5 is used: for the manufacture of welding wire brand Svamg5; semifinished products by hot or cold deformation; profiles with cross-sectional area of 200 cm2 and a diameter of circumcircle up to 350mm suitable for use in the aviation industry and special machine building industries.
Note
The alloy system Al-Mg.
Standards
| Name |
Code |
Standards |
| Tapes |
В54 |
GOST 13726-97 |
| Sheets and stripes |
В53 |
GOST 17232-99, GOST 21631-76, OST 4.021.047-92, TU 1-3-011-89, TU 1-3-56-82, TU 1-3-59-77 |
| Pipes from non-ferrous metals and alloys |
В64 |
GOST 18482-79, GOST 23697-79, OST 1 92096-83, OST 1 92048-90, TU 1-2-407-82, TU 1-2-439-83, TU 1-2-473-85 |
| Bars |
В55 |
GOST 21488-97 |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 4784-97, OST 4.021.009-92, TU 1712-166-00194091-2000 |
| Sectional and shaped rolling |
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, OST 5.9442-84, OST 1 92093-83, OST 1 92067-92, OST 1 92069-77, OST 1 90113-86 |
| Metal forming. Forgings |
В03 |
OST 26-01-152-82, OST 1 90073-85 |
| Pipes steel and connecting parts to them |
В62 |
OST 5.6065-74 |
Chemical composition
| Standard |
Mn |
Si |
Fe |
Cu |
Al |
Ti |
Zn |
Mg |
Be |
| GOST 4784-97 |
0.3-0.8 |
≤0.5 |
≤0.5 |
≤0.1 |
The rest |
0.02-0.1 |
≤0.2 |
4.8-5.8 |
0.0002-0.005 |
Al is the base.
According to GOST 4784-97, the mass fraction of each other impurity (not regulated) ≤ 0.05%, the total mass fraction of other impurities ≤ 0.10%.
For the production of the welding wire SvMg5, the alloy should have the following chemical composition: Al-base, Mg = 4.80-5.80%, Mn = 0.50-0.80%, Be = 0.002-0.005%, Si≤0.40 %, Cu ≤ 0.050%, Fe ≤ 0.40%, Zn ≤ 0.20%, Ti ≤ 0.10%, the mass fraction of each other impurity (not regulated) ≤ 0.1%, the total mass fraction of all impurities ≤ 1 , 40%. The ratio of iron and silicon in the SvMg5 alloy should not be more than one.
Mechanical characteristics
| Section, mm |
sT|s0,2, MPa |
σB, MPa |
d5, % |
d |
y, % |
kJ/m2, кДж/м2 |
Brinell hardness number, MPa |
| Sheet metal in delivery condition according to GOST 21631-76, OST 4.021.047-92 tape according to GOST 13726-97 (samples transverse) |
| 5-6 |
≥130 |
≥275 |
- |
≥12 |
- |
- |
- |
| 6-10.5 |
≥130 |
≥275 |
- |
≥15 |
- |
- |
- |
| 0.5-0.6 |
≥135 |
≥275 |
- |
≥15 |
- |
- |
- |
| 0.6-4.5 |
≥145 |
≥275 |
- |
≥15 |
- |
- |
- |
| 4.5-10.5 |
≥130 |
≥275 |
- |
≥15 |
- |
- |
- |
| Plates according to GOST 17232-99. 4.021.061-92 supplied without heat treatment (samples transverse) |
| 11-25 |
≥120 |
≥265 |
≥13 |
- |
- |
- |
- |
| 25-80 |
≥110 |
≥255 |
≥12 |
- |
- |
- |
- |
| Forgings section up to 75 mm OST 1 90073-85 (longitudinal samples) |
|
≥145 |
≥275 |
≥15 |
- |
- |
- |
≥65 |
| Forging after annealing at OST 26-01-152-82 |
|
≥120 |
≥270 |
≥15 |
- |
- |
- |
≥65 |
| Extruded normal strength according to GOST 8617-81 on delivery |
|
≥127 |
≥277 |
≥15 |
- |
- |
- |
- |
| Extruded normal strength with the cross-sectional area 200 cm2 and a diameter of circumcircle up to 350mm (longitudinal sample) |
|
≥130 |
≥255 |
≥15 |
- |
- |
- |
- |
| Profiles pressed extra virgin hollow. Without heat treatment and autogenie for OST 1 92048-90 |
|
≥128 |
≥255 |
≥15 |
- |
- |
- |
- |
| The pressed bars normal strength in the delivery condition according to GOST 21488-97 (longitudinal samples) |
| 300-400 |
≥110 |
≥245 |
≥10 |
- |
- |
- |
- |
| 8-300 |
≥120 |
≥265 |
≥15 |
- |
- |
- |
- |
| Rolled steel. Annealing at 305-340 °C, air cooling |
|
≥130 |
≥300 |
≥23 |
- |
≥42 |
≥400 |
≥65 |
| Tubes seamless cold-drawn square (10x10 - 90x90 mm), rectangular (10х14 - 60х120 mm) 92096-83 OST 1, OST 4.021.120-92 (in cross-section shows the thickness of the wall) |
|
≥125 |
≥265 |
≥15 |
- |
- |
- |
- |
|
≥165 |
≥315 |
- |
- |
- |
- |
- |
| Tubes extruded in the state of delivery according to GOST 18482-79 (samples, in cross-section shows the thickness of the wall) |
| 2.5-40 |
≥110 |
≥255 |
≥15 |
- |
- |
- |
- |
| Welded straight-seam pipes supplied according to GOST 23697-79 (samples, in the cross-section of the specified diameter of pipes) |
| 10 (стенка 0.5) |
- |
≥294 |
≥7 |
- |
- |
- |
- |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σB |
Limit short-term strength |
| d5 |
Elongation after rupture |
| d |
Elongation after rupture |
| y |
The relative narrowing |
| kJ/m2 |
Toughness |
Physical characteristics
| Temperature |
Е, ГПа |
r, кг/м3 |
R, НОм · м |
| 20 |
71 |
2650 |
64 |
A description of the physical symbols
| Name |
Description |
| Е |
The normal elasticity modulus |
| r |
Density |
| l |
Coefficient of thermal conductivity |
| R |
UD. the resistivity |
| С |
Specific heat |
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. |
| Workability by cutting |
Machinability is good. |
| 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. |
