Aluminum alloy 1925C

No foreign analogues

Designed for the production of extruded pipes and fittings

Classification

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

Chemical composition

Standard	Fe, %	Si, %	Mg, %	Mn, %	Cr, %	Ti, %	Cu, %	Zn, %	Zr, %	Al, %	Примеси, %
Standard	Fe, %	Si, %	Mg, %	Mn, %	Cr, %	Ti, %	Cu, %	Zn, %	Zr, %	Al, %	Примеси, %
GOST 4784-97	< 0.4	< 0.4	0.8–1.4	< 0.5	0.1–0.3	0.01–0.1	< 0.1	4.3–5.5	< 0.2	90.95–94.79	< 0.15

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Physical characteristics

Temperature, °C	$\alpha\cdot 10^{6}$ , $K^{-1}$	$\varkappa$ , $\frac{W}{m\cdot K}$	$\rho$ , $\frac{kg}{m^3}$	$R\cdot 10^{-6}$ , $\Omega\cdot m$
Temperature, °C	$\alpha\cdot 10^{6}$ , $K^{-1}$	$\varkappa$ , $\frac{W}{m\cdot K}$	$\rho$ , $\frac{kg}{m^3}$	$R\cdot 10^{-6}$ , $\Omega\cdot m$
20	22.3	115–130	2800	4.5–6

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
Pipes are pressed.	GOST 18482-79	400	Transverse	raw, compacting, thin, Transverse	440	360	10

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
Pipes are pressed.	GOST 18482-2018	raw, compacting, thin, Transverse	280–320

Technological Properties

Weldability
Weldability
Difficult to weld

Analogues

Russia
Russia
Сплав Д26

Standards

Standard	Description
Standard	Description
GOST 4784-97
GOST 18482-2018

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Примеси	%	Impurities
Si	%	Silicon
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
$\alpha\cdot 10^{6}$	$K^{-1}$	Coefficient of thermal (linear) expansion (range 20°C–T)
$\varkappa$	$\frac{W}{m\cdot K}$	Coefficient of thermal conductivity (the heat capacity of the material)
$\rho$	$\frac{kg}{m^3}$	The density of the material
$R\cdot 10^{-6}$	$\Omega\cdot m$	Electrical resistivity

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