MA8

for sheets, plate, forgings of complex configuration; for welded structures; max operating temperature: 200 ° C -Duration 250 ° C -kratkovremennaya

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Magnesium	Wrought Magnesium Alloys

Chemical composition

Standard	Fe, %	Si, %	Be, %	Mg, %	Mn, %	Cu, %	Zn, %	Ni, %	Al, %	Ce, %
Standard	Fe, %	Si, %	Be, %	Mg, %	Mn, %	Cu, %	Zn, %	Ni, %	Al, %	Ce, %
GOST 14957-76	< 0.05	< 0.1	< 0.002	96.84–98.55	1.3–2.2	< 0.05	< 0.3	< 0.007	< 0.1	0.15–0.35

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Physical characteristics

Temperature, °C	$E\cdot 10^{9}$ , $MPa$	$\alpha\cdot 10^{6}$ , $K^{-1}$	$\varkappa$ , $\frac{W}{m\cdot K}$	$\rho$ , $\frac{kg}{m^3}$	$c\cdot 10^{-3}$ , $\frac{J}{kg\cdot K}$	$R\cdot 10^{-6}$ , $\Omega\cdot m$
Temperature, °C	$E\cdot 10^{9}$ , $MPa$	$\alpha\cdot 10^{6}$ , $K^{-1}$	$\varkappa$ , $\frac{W}{m\cdot K}$	$\rho$ , $\frac{kg}{m^3}$	$c\cdot 10^{-3}$ , $\frac{J}{kg\cdot K}$	$R\cdot 10^{-6}$ , $\Omega\cdot m$
20	42		133.9	1780		0.051
100		23.7			1.0467

Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$\epsilon_L$ , %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$\epsilon_L$ , %	Treatment
Sheet				annealing	220–230	110–120	10–12
Sheet				cold-work, half-load	220–230	140–150	6–8
Trumpet					230		8
Round					175–215		1–4

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
			0–0

Casting and technological parameters

linear shrinkage, %
linear shrinkage, %
5.4

Standards

Standard	Description
Standard	Description
GOST 14957-76
GOST Р 56031-14

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Be	%	Beryllium
Mg	%	Magnesium
Mn	%	Manganese
Cu	%	Copper
Zn	%	Zinc
Ni	%	Nickel
Al	%	Aluminium
Ce	%	Cerium

Description of physical characteristics

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$E\cdot 10^{9}$	$MPa$	Elastic modulus
$\alpha\cdot 10^{6}$	$K^{-1}$	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
$c\cdot 10^{-3}$	$\frac{J}{kg\cdot K}$	The specific heat of the material (range 20°C–T)
$R\cdot 10^{-6}$	$\Omega\cdot m$	Electrical resistivity

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\sigma _{U}$	$MPa$	Ultimate tensile strength
$\sigma_{P}$	$MPa$	Proportionality limit
$\epsilon_L$	%	Elongation at break (longitudinal)

Description of the casting and technological parameters

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
linear shrinkage	%	The difference between model dimensions and the model casting