AK21M2.5N2.5 (VKZHLS-2)

For the manufacture of shaped castings.

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Aluminum, aluminum alloys	Foundry aluminum alloys

Chemical composition

Standard	Fe, %	Si, %	Sn, %	Mg, %	Mn, %	Cr, %	Ti, %	Cu, %	Zn, %	Ni, %	Al, %	Pb, %
Standard	Fe, %	Si, %	Sn, %	Mg, %	Mn, %	Cr, %	Ti, %	Cu, %	Zn, %	Ni, %	Al, %	Pb, %
GOST 1583-93	< 0.9	20–22	< 0.01	0.2–0.5	0.2–0.4	0.2–0.4	0.1–0.3	2.2–3	< 0.2	2.2–2.8	74.9–69.5	< 0.05

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	Treatment
Casting	GOST 1583-93			in chill mold	157–186

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
Casting	GOST 1583-93	in chill mold	90–100

Standards

Standard	Description
Standard	Description
GOST 1583-93

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Sn	%	Tin
Mg	%	Magnesium
Mn	%	Manganese
Cr	%	Chrome
Ti	%	Titan
Cu	%	Copper
Zn	%	Zinc
Ni	%	Nickel
Al	%	Aluminium
Pb	%	Lead

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\sigma _{U}$	$MPa$	Ultimate tensile strength