1985ch alloyed alloy

For the manufacture of pipes and extruded profiles; shipbuilding and aircraft building parts.

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Aluminum, aluminum alloys	Wrought Aluminum Alloys

Chemical composition

Standard	Fe, %	Si, %	Be, %	Mg, %	Mn, %	Cr, %	Ti, %	Cu, %	Zn, %	Zr, %	Al, %
Standard	Fe, %	Si, %	Be, %	Mg, %	Mn, %	Cr, %	Ti, %	Cu, %	Zn, %	Zr, %	Al, %
OST 5.9466 - 88	< 0.3	< 0.2	0.0002–0.005	5–5.9	0.25–0.5	0.1–0.2	< 0.07	< 0.1	2.2–2.8	0.08–0.2	89.725–92.3698

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Physical characteristics

Temperature, °C	$\rho$ , $\frac{kg}{m^3}$
Temperature, °C	$\rho$ , $\frac{kg}{m^3}$
20	2790

Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{Y}$ , $MPa$	d5, %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{Y}$ , $MPa$	d5, %	Treatment
Forgings	OST 1 90026-80	100–400	Transverse	raw, deformation, fat, Transverse	650–680	360–380	6

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Rolling	Standard	Classifiers	Value, HRC
Rolling	Standard	Classifiers	Value, HRC
Forgings	OST 1 90026-80	raw, deformation, fat, Transverse	27–30

Technological Properties

Weldability	Flake Susceptibility	Propensity to temper brittleness
Weldability	Flake Susceptibility	Propensity to temper brittleness
Boundedly welded	not sensitive	loathsome

Standards

Standard	Description
Standard	Description
OST 5.9466 - 88

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Be	%	Beryllium
Mg	%	Magnesium
Mn	%	Manganese
Cr	%	Chrome
Ti	%	Titan
Cu	%	Copper
Zn	%	Zinc
Zr	%	Zirconium
Al	%	Aluminium

Description of physical characteristics

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\rho$	$\frac{kg}{m^3}$	The density of the material

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
d5	%	Elongation at break
$\sigma_{Y}$	$MPa$	Yield strength
$\sigma _{U}$	$MPa$	Ultimate tensile strength

Designation of types of weldability

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
no limits		Welding is performed without heating and without subsequent heat treatment
Boundedly welded		Welding is possible with heating up to 100–120 °C and subsequent heat treatment
Difficult to weld		For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing
Not applicable for welded structures