Tungsten wire mesh wire metal mesh/Tungsten Wire Mesh,99.9% Pure Tungsten Mesh Screen/element tungsten wire filter mesh

Tungsten Mesh Characteristics:

1. Tungsten is a very hard, dense, silvery-white, lustrous metal that tarnishes in air, forming a protective oxide coating. In powder form tungsten is gray in color.

2. The metal has the highest melting point of all metals, and at temperatures over 1650 ºC also has the highest tensile strength. Pure tungsten is ductile, and tungsten wires, even of a very small diameter, have a very high tensile strength.

3. Tungsten is highly resistant to corrosion. It forms tungstic acid (H2WO4), or wolframic acid from the hydrated oxide (WO3) and its salts are called tungstates, or wolframates.

4. Tungsten is one of the five major refractory metals (metals with very high resistance to heat and wear). The other refractory metals are molybdenum, tantalum, rhenium and niobium.

Tungsten Mesh Chemical resistance:

At relative humidity of under 60 %, tungsten is corrosion-resistant. In moisture air, discoloration starts to occur. However, this is less pronounced than in molybdenum. Even at very high temperatures, glass melts, hydrogen, nitrogen, noble gases, metallic melts and oxide ceramic melts are largely unaggressive to tungsten provided that they do not also contain oxidants.

Physical properties:

1. Tungsten has the highest melting point of all the refractory metals, a low coefficient of thermal expansion and a relatively high density.

2. Tungsten's good electrical conductivity and excellent thermal conductivity are further valuable properties.

Mechanical properties:

The mechanical properties of tungsten are similar to those of molybdenum. As in the case of molybdenum, these properties are dependent on the temperature at which they are tested. At 3 420 ºC, tungsten has the highest melting point of all metals. The material's high thermal stability coupled with its high modulus of elasticity give tungsten its high creep resistance.

Thermal Properties:

Features: • Corrosion resistance.

• Outstanding filtering performance.

• High temperature resistance.

• Salty,alkali and acid resistance.

• Chemical stability.

1) Corrosion resisting property

2)Hartz B - 2 alloy is a kind of low carbon and silicon content of Ni - Mo alloy, it reduces the welding seam and heat affected zone, precipitation of carbide and other phase to ensure that even in the condition of welding has good corrosion resistance.

3)HastelloyC-276 Corrosion resistant performance hartz C - 276 alloy belongs to nickel - chromium molybdenum - - iron - tungsten nickel base alloy. It is a modern one of the most corrosion resistant metal materials. Main wet chlorine, all kinds of oxidation resistance chloride, chlorate solution, acid and oxidizing salt, in low temperature and temperature in the hydrochloric acid have good corrosion resistance. Therefore, nearly 30 years, corrosion in the harsh environment, such as chemical industry, petrochemical industry, such as flue gas desulfurization, pulp and paper making, environmental protection industry has a wide application.