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Tantalum plate is one of the most common metal materials.

A kind of filamentous tantalum material is made from tantalum powder by rolling, drawing and other plastic processing methods.

Almost all tantalum plates are cold worked.

Tantalum cannot be processed in the usual way that ordinary metals are processed. Generally, the initial process is forging and heat treatment, using hammering and stamping two ways to make plate blank or round small and medium-sized blank.

There are two Executive Standards for titanium plate: GB / T3621-2007 and GB / T13810-2007, and American standards are ASTM b265, ASTM F136, ASTM F67 and ams4928.

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 ℃.

Niobium, chemical symbol Nb, is a lustrous gray metal with paramagnetism, atomic number 41.

Niobium can be produced by electrolytic melting of potassium heptafluoroniobate.

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.

Smelting method: tantalum and niobium ore is often accompanied by a variety of metals.

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.

Molybdenum, chemical symbol Mo, metal element, is a necessary trace element for human body, animals and plants.

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