Alloy Amg2 (1520)

Designation

Name	The value
Designation GOST Cyrillic	АМг2
Designation GOST Latin	AMg2
Transliteration	AMg2
By chemical elements	-

Name	The value
Designation GOST Cyrillic	1520
Designation GOST Latin	1520
Transliteration	1520
By chemical elements	1520

Description

Alloy Amg2 is used: for the manufacture of flat ingots, cast by semi-continuous method or continuous casting, and is intended for rolling into sheets, strips and other semi-finished products (strips, plates, profiles, panels, pipes, drawn wire, stampings and forgings) by hot or cold deformation; details of the internal planes of welded tanks and fuel tanks; round, rolled and drawn pipes for pipes transmission shafts and the linkage control planes; cold-formed profiles for the cladding of building structures; parts of household air conditioners.

Note

The alloy system Al-Mg.
ISO 209−1 alloy Amg2 brand has a designation AlMg2 and 5251.

Standards

Name	Code	Standards
Tape	В54	GOST 13726-97, TU 1-1-73-77, TU 1-2-374-77, TU 1-2-426-87, TU 1-2-432-82, TU 1-2-434-82, TU 1-9-545-75
Wire from nonferrous metals and their alloys	В74	GOST 14838-78, OST 1 92005-2002
Sheets and strips	В53	GOST 17232-99, GOST 21631-76, OST 1 90166-75, OST 4.021.047-92, OST 4.021.061-92, TU 48-21-169-83, TU 1-2-103-80, TU 1-2-107-77, TU 1-3-71-90, TU 1-3-87-90, TU 15-06-280-82
Tubes of non-ferrous metals and alloys	В64	GOST 18482-79, GOST 23697-79, OST 1 92096-83, OST 1 92048-90, OST 1 90038-88, OST 4.021.120-92, TU 1-2-148-78, TU 1-2-159-79, TU 1-2-268-79, TU 1-2-310-75, TU 1-2-452-83, TU 1-2-46-78, TU 1-2-91-77, TU 1-9-93-75
Bars	В55	GOST 21488-97, OST 4.021.017-92, OST 4.021.036-92
Non-ferrous metals, including rare, and their alloys	В51	GOST 4784-97, GOST 9498-79, OST 1 92014-90, OST 4.021.009-92
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 24767-81, GOST 29296-92, GOST 29303-92, GOST Р 50066-92, GOST Р 50067-92, GOST Р 50077-92, OST 1 92093-83, OST 1 92067-92, OST 1 92069-77, OST 4.021.133-92, OST 4.021.134-92
Norms for calculation and design	В02	OST 1 00154-74
Processing of metals by pressure. Forgings	В03	OST 26-01-152-82, OST 1 90073-85

Chemical composition

Standard	Mn	Cr	Si	Fe	Cu	Al	Ti	Zn	Mg
OST 1 92014-90	0.2-0.6	≤0.05	≤0.4	≤0.4	≤0.1	Rest	≤0.1	≤0.2	1.8-2.6
GOST 4784-97	0.1-0.5	≤0.05	≤0.4	≤0.5	≤0.15	Rest	≤0.15	≤0.15	1.7-2.4

Al is the base.
According to GOST 4784-97, the chemical composition is given for the AMg2 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 AMg2 alloy. Mass fraction of each other impurity (not regulated) ≤ 0.05%, total mass fraction of other impurities ≤ 0.10%.

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	d	y, %	KCU, kJ/m²	HB, MPa
Long products
	≥80	≥190	≥25	-	≥65	≥900	≥45
Sheet metal in delivery condition according to GOST 21631-76, OST 4.021.047-92 tape according to GOST 13726-97 (samples transverse)
5-10.5	-	≥175	-	≥7	-	-	-
0.5-1	-	≥165	-	≥16	-	-	-
1-10.5	-	≥165	-	≥18	-	-	-
0.5-1	≥215	≥265	-	≥3	-	-	-
1-4	≥215	≥265	-	≥4	-	-	-
0.5-1	≥145	235-314	-	≥5	-	-	-
1-4	≥145	235-314	-	≥6	-	-	-
Sheet metal as supplied at OST 4.021.047-92 (samples transverse)
0.5-1	-	≥165	-	≥16	-	-	-
1-10	-	≥165	-	≥18	-	-	-
0.5-1	≥215	≥265	-	≥3	-	-	-
1-4	≥215	≥265	-	≥4	-	-	-
Plates according to GOST 17232-99. 4.021.061-92 supplied without heat treatment (samples transverse)
11-25	-	≥175	≥7	-	-	-	-
25-80	-	≥155	≥6	-	-	-	-
Forgings section up to 75 mm OST 1 90073-85. Mode M (in cross-section indicates the direction of the samples)
	-	≥145	≥13	-	-	-	≥45
	-	≥165	≥15	-	-	-	≥45
Forging after annealing at OST 26-01-152-82
	≥80	≥180	≥13	-	-	-	≥65
Extruded normal strength according to GOST 8617-81 on delivery
	≥59	≥147	≥13	-	-	-	-
	≥59	≤225	≤13	-	-	-	-
Profiles pressed extra virgin hollow. Without heat treatment and autogenie for OST 1 92048-90
	-	≤226	≥12	-	-	-	-
Extruded square bars supplied by OST 4.021.036-92 (samples longitudinal cross-sections of the specified diameter of the inscribed circle)
8-65	-	≥175	≥13	-	-	-	-
The pressed bars normal strength in the delivery condition according to GOST 21488-97. 4.021.017-92 (longitudinal samples)
8-350	-	≥175	≥13	-	-	-	-
Tubes seamless cold-drawn square (10x10 - 90x90 mm), rectangular (10х14 - 60х120 mm) OST 1 92096-83, round to EAST 4.021.120-92 (in cross-section shows the thickness of the wall)
1-5	-	155-220	≥15	-	-	-	-
1-5	-	≥225	-	-	-	-	-
Tubes extruded in the state of delivery according to GOST 18482-79 (samples, in cross-section shows the thickness of the wall)
	≥60	≥155	≥10	-	-	-	-
Welded straight-seam pipes supplied according to GOST 23697-79 (samples, in the cross-section of the specified diameter of pipes)
	-	≥166.6	≥7	-	-	-	-
	-	≥215.6	≥3	-	-	-	-
Drawn tubes and rolled with DH=6-70 mm and a wall thickness of 1-5 mm OST 1 90038-88 in the delivery condition (in cross-section is specified outside diameter)
	-	155-225	≥15	-	-	-	-
	-	≥225	-	-	-	-	-

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	l, W/(m · °C)	R, Mr. · m	a, 10^-6 1/°C	С, J/(kg · °C)
20	71	2690	-	476	-	-
100	-	-	159	-	242	963
200	-	-	-	-	276	-

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. The corrosion resistance of the alloy (and the weld) high, is almost the same as that of pure aluminum. Weld joint efficiency is 0.9-0.95 % of the strength of the basic material.
Machinability	The poor machinability in the annealed condition and satisfactory cold-worked.
Pressure treatment	Well-deformed in hot and cold condition.
Features of heat treatment	Not heat-treatable alloy.
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.