Alloy AK6 is used: for the manufacture of pressed extra virgin rods; stamped and forged parts of complex shape and medium strength of the aviation industry; extruded large pipes.

Standards

Name	Code	Standards
Name	Code	Standards
Tubes of non-ferrous metals and alloys	В64	GOST 18482-79, GOST 23697-79, OST 1 92048-90, OST 1 92048-76, TU 1-4-139-73, TU 1-9-459-73
Bars	В55	GOST 21488-97, GOST Р 51834-2001, OST 1 90395-91, TU 1-2-307-79
Non-ferrous metals, including rare, and their alloys	В51	GOST 4784-97, OST 1 90048-90, OST 1 90334-83
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 1 92093-83, TU 1-2-303-79
Processing of metals by pressure. Forgings	В03	OST 1 90073-85

Chemical composition

Standard	Mn	Si	Ni	Fe	Cu	Al	Ti	Zn	Mg
Standard	Mn	Si	Ni	Fe	Cu	Al	Ti	Zn	Mg
OST 1 90048-90	0.4-0.8	0.7-1.2	≤0.1	≤0.4	1.8-2.6	Rest	≤0.1	≤0.3	0.4-0.8
GOST 4784-97	0.4-0.8	0.7-1.2	≤0.1	≤0.7	1.8-2.6	Rest	≤0.1	≤0.3	0.4-0.8

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%.
According to OST 1 90048-90 the chemical composition is given for the alloy AK6h. 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, %	KCU, kJ/m²	HB, MPa
Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	KCU, kJ/m²	HB, MPa
Forgings up to 300 mm punching up to 200 mm for OST 1 90073-85. Mode T1: Quenching + artificial aging (indicated by the direction of samples)
	-	≥345	≥6	-	≥95
	-	≥365	≥8	-	≥95
	≥245	≥365	≥7	-	≥100
	≥275	≥380	≥10	-	≥100
Profiles and pressed bars normal strength according to GOST 8617-81, GOST 21488-97 in the delivery condition (longitudinal samples)
	-	≥353	≥12	-	-
Bars extruded high tensile strength in the delivery condition according to GOST 21488-97 (longitudinal samples)
8-300	≥265	≥375	≥10	-	-
Tubes extruded in the state of delivery according to GOST 18482-79 (samples, in cross-section shows the thickness of the wall)
≤5	-	≥285	≥8	-	-
5	-	≥315	≥10	-	-
5-40	-	≥355	≥10	-	-
Large-size extruded tubes according to OST 1 92048-76 on delivery
	-	≥353	≥10	-	-
Welded straight-seam pipes supplied according to GOST 23697-79 (samples, in the cross-section of the specified diameter of pipes)
	-	≥156.8	≥6	-	-
Forming in the state of delivery
	≥378	≥447	≥12.5	≥190	95-100

Description mechanical marks

Name	Description
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
KCU	Toughness
HB	Brinell hardness number

Physical characteristics

Temperature	Е, HPa	r, kg/m³	R, Mr. · m
Temperature	Е, HPa	r, kg/m³	R, Mr. · m
20	72	2750	41

A description of the physical symbols

Name	Description
Name	Description
Е	The normal elasticity modulus
r	Density
l	Coefficient of thermal conductivity
R	UD. the resistivity

Technological properties

Name	The value
Name	The value
Weldability	Welding is done in the environment of protective gases.
Features of heat treatment	Heat-treatable alloy.

Alloy AK6 (1360)

Designation

Description