Low density and high specific strength The density of titanium is 4.51g/cm3, which is higher than that of aluminum, but lower than that of steel, copper and nickel.

Industrial pure titanium: the impurity content of industrial pure titanium is more than that of chemical pure titanium, so its strength and hardness are slightly higher, and its mechanical and chemical properties are similar to those of stainless steel.

Titanium has metallic luster and ductility. The density is 4.5 g / cm3. The melting point is 1660 ± 10 ℃. Boiling point 3287 ℃.

Basic use: about 50% of the world's mined tungsten ore is used for smelting high-quality steel, about 35% for producing hard steel, about 10% for tungsten wire, and about 5% for other purposes.

There are more than ten kinds of tungsten ores, and there are mainly two kinds in China: wolframite (tungstate of manganese and iron) and scheelite (calcium tungstate).

Tungsten is a kind of metal element, the symbol of which is w.

The chemical symbol TA, steel gray metal, belongs to VB group in the periodic table, atomic number 73.

Tantalum is a kind of steel gray metal with chemical symbol TA. It has very high corrosion resistance.

It has long been found that when the temperature drops to near absolute zero.