The density, specific heat, melting point of zinc.
Buy zinc, which meets all the requirements of GOST 3640−94, is offered by Electrovek-Steel. Effective prices are from the manufacturer. The supplier provides prompt delivery of the metal to any address set by the consumer.
General characteristics of zinc
Zinc is a metal with a silvery-faded color. Zinc in nature forms 12 stable natural isotopes, whose mass numbers range from 62 to 73. The crystal lattice of zinc is hexagonal, densely packed. The metal is diamagnetic, does not undergo any polymorphic transformations. In the electrochemical activity series, zinc differs by a more negative electrode potential. This property is used for effective protection of steel structures and parts from atmospheric corrosion, in particular, by hot or cold galvanizing. Zinc is a brittle metal, and under normal conditions it practically does not deform.
GOST 3640−94 provides the following zinc grades:
|Not less than||no more|
* — In zinc, used for rolled products, the mass fraction of Al should not be more than 0.005%.
To buy zinc of various grades, which meets the technical requirements of GOST 3640−94, the company Electrovek-Steel offers. Products are sold at prices from the manufacturer. The supplier guarantees the timely delivery of the metal to the point specified by the customer.
Physical and mechanical properties of zinc are presented below:
Density, g / cm3 in the solid state at 20 ° C… 7.1… 7.2;
Melting point, ° С:… 419, 4;
Heat of fusion, kJ / kg:… .100.8;
Surface tension at a temperature of 450 ° C, N / m2… .755;
Heat capacity in the solid state at 20 ° C, J / (kg.K):… 394;
Thermal conductivity in the solid state at 20 ° C, W / (m.K):… 111;
Specific electrical conductivity, at 20 ° С, МСм / м)… 15.9;
Specific electrical resistivity in the solid state at 20 ° C, μOmm:… 0,059;
The coefficient of linear expansion in the temperature range 20… 200 ° С, К -1… 29,810 -6 ;
Temperature coefficient of thermal conductivity, K -1… 0.510 -3 ;
The module of normal elasticity at 20 ° С, GPa… 78.5… 127.5;
Shear modulus at 20 ° С, GPa… 37.3.
The company Electrovek-steel offers to buy at reasonable prices zinc, which meets the requirements of GOST 3640−94. The supplier provides delivery of metal to any point specified by the customer.