VRN

Tungsten brand VRN. This brand of tungsten does not contain additives, but it allowed the presence of impurities in increased volume.

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Refractory metals, carbide	Tungsten

Chemical composition

Standard	Fe, %	Si, %	Ca, %	Al, %	Mo, %	W, %
Standard	Fe, %	Si, %	Ca, %	Al, %	Mo, %	W, %
GOST 19671-91	< 0.01	0.001–0.01	< 0.02	0.001–0.01	< 0.04	> 99.9

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Physical characteristics

Temperature, °C	$\rho$ , $\frac{kg}{m^3}$	$R\cdot 10^{-6}$ , $\Omega\cdot m$
Temperature, °C	$\rho$ , $\frac{kg}{m^3}$	$R\cdot 10^{-6}$ , $\Omega\cdot m$
20	19300	55

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
	GOST 19671-91		4785

Casting and technological parameters

melting point, °C	Boiling temperature, °C
melting point, °C	Boiling temperature, °C
3380	5555

Standards

Standard	Description
Standard	Description
GOST 19671-91

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Ca	%	Calcium
Al	%	Aluminium
Mo	%	Molybdenum
W	%	Tungsten

Description of physical characteristics

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\rho$	$\frac{kg}{m^3}$	The density of the material
$R\cdot 10^{-6}$	$\Omega\cdot m$	Electrical resistivity

Description of the casting and technological parameters

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
melting point	°C	The temperature at which solid crystalline body makes the transition to the liquid state and Vice versa
Boiling temperature	°C	The boiling point, boiling point is the temperature at which the liquid under constant pressure boils.