The texture of tantalum is very hard. The hardness of tantalum plate, tantalum rod, tantalum tube, tantalum wire, and tantalum crucible can reach 6-6. Its melting point is as high as 2996℃, second only to tungsten and rhenium, ranking third. Spherical tantalum powder is malleable and can be drawn into filaments or made into thin foils. Its coefficient of thermal expansion is very small, it only expands by 6.6 parts per million per degree Celsius rises. In addition, its toughness is very strong, even better than copper.

Spherical tantalum powder also has very good properties and high corrosion resistance. No matter it is under cold or hot conditions, it has no reaction to hydrochloric acid and "aqua regia". The tantalum was soaked in sulfuric acid at 200°C for one year, and the surface layer was only damaged by 0.006 mm. The experiment of tantalum plate, tantalum rod, tantalum tube, tantalum wire, tantalum crucible proved that Spherical tantalum powder has no effect on alkaline solution, bromine water, dilute sulfuric acid and many other chemicals under normal conditions, and only reacts under the action of heat. Such a situation is relatively rare in metals.

The characteristics of Spherical tantalum powder make its application field very broad. In the equipment for preparing various inorganic acids, tantalum can be used to replace stainless steel, and its life can be increased by several tens of times compared with stainless steel. In addition, in the chemical, electronic, electrical and other industries, tantalum can replace the precious metal platinum in the past, which greatly reduces the cost.

In addition, Spherical tantalum powder is also an important element for refining steel, corrosion-resistant steel and heat-resistant steel alloys, and can provide special materials necessary for the development of space technology such as rockets, spacecraft, and jet aircraft. Non-magnetic alloys made of tantalum and tungsten are widely used in the electrical industry, especially tantalum carbide composed of tantalum and carbon, which has a relatively large hardness, which is comparable to diamonds even under high conditions. Tantalum plate, tantalum rod, tantalum tube, tantalum wire, and tantalum crucible are used for turning tools that can cut many hard alloys at high speed; various drill bits made with it can replace hard alloys or diamonds. Therefore, Spherical tantalum powder is also regarded as the "vitamin" in smelting.