Alloy AMg5 (1550)

Designation

Name	The value
Designation GOST Cyrillic	АМг5
Designation GOST Latin	AMg5
Transliteration	AMg5
By chemical elements	-

Name	The value
Designation GOST Cyrillic	1550
Designation GOST Latin	1550
Transliteration	1550
By 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
Tape	В54	GOST 13726-97
Sheets and strips	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
Tubes of 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, and their alloys	В51	GOST 4784-97, OST 4.021.009-92, TU 1712-166-00194091-2000
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, OST 5.9442-84, OST 1 92093-83, OST 1 92067-92, OST 1 92069-77, OST 1 90113-86
Processing of metals by pressure. Forgings	В03	OST 26-01-152-82, OST 1 90073-85
Steel pipes and fittings 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	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 properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	d	y, %	KCU, kJ/m²	HB, 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
s_T\|s_0,2	Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σ_U	Limit short-term strength
d₅	Elongation after rupture
d	Elongation after rupture
y	The relative narrowing
KCU	Toughness
HB	Brinell hardness number

Physical characteristics

Temperature	Е, HPa	r, kg/m³	R, Mr. · m
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.
Machinability	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.