VM

This brand of tungsten with thorium and silica-additives to impart additional characteristics such as strength after annealing, increase the temperature range of primary recrystallization.

Classification

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

Chemical composition

Standard Oxide Th, % W, % Примеси, %
GOST 19671-91 0.17–0.25 > 99.7 0.05

Information on suppliers

Physical characteristics

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
GOST 19671-91 4785

Casting and technological parameters

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

Standards

Standard Description
GOST 19671-91

Description of chemical elements

Element Units of measurement Description
Oxide Th % Thorium Oxide
Примеси % Impurities
W % Tungsten

Description of physical characteristics

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
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.