Tungsten carbide cobalt (WC-CO) is an alloy of a hard ceramic phase, tungsten carbide (WC) and a ductile metallic phase, the cobalt (Co). Significant properties of WC-Co are hardness, strength, high breaking and beating ductility as well as high electrical and thermal conductivity. By varying the cobalt content between 0 and 20 mass per cent, hard metals can cover a hardness range from tempered steel to super-hard alloys. From hard metals, mainly tools are produced for chipping (turning, milling, drilling) or non-chipping shaping (drawing, rolling, spinning), as well as for cutting or breaking of metals, wood, stone, and ores. Applications of WC-Co in life include surgery equipment, nozzles or reinforcements, small balls in ball pens, hard metal driller, and hard metal coated circular saw blades.

It is found that tantalum (Ta) and niobium (Nb) in concentrate of wolframite ((Fe,Mn)WO4) has been wasted: some of it goes to the insoluble residue after ammonium-leaching of the tungstic acid slurry; most of it goes to the solution of ammonium tungstate when (Fe,Mn)WO4 concentrate was digested by hydrochloric acid and the slurry of tungstic acid obtained was leached in ammonia. When the ammonium paratungstate (APT) was crystallized from the solution of ammonium tungstate, Ta and No were almost completely left in the mother liquor and their content reached up to 16 g/litre.

Ammonium paratungstate (APT), as a significant starting material for tungsten, which can be derived into the majority of tungsten products. Wolframite or scheelite (CaWO₄) concentrates are the two common materials are APT. There are two important steps in production of metallic tungsten from APT. The first step is thermal reduction of APT powder by heating at 400–900 °C, which leads to ammonia and water elimination as well as the crystallization of tungsten trioxide (W0₃). In the second step, an even higher temperature is required. WO₃ powder was heated under H₂ at 600–1100 °C, and metallic tungsten is then prepared.

Tungsten alloy door is a new shielding door for medical applications such as X-ray department. In X-ray department, routine CT examination, MR examination interventional radiation diagnosis and treatment are undergoing. These departments use X-rays and other medical rays to assist diagnosis and treatment. Tungsten alloy protective door having strong absorption and shielding properties to X-rays and other radiation can play a good radiation shielding effect.

Radiation protection tungsten alloy plate has strong and stable radiation shielding performance by absorbing X-ray, and γ-ray, etc. It is non-toxic, non-polluting, anti-wear and long-lasting. Also, it has good acid resistance, alkali resistance, and corrosion resistance. Therefore, it is mainly used in X-ray room, CT room of the hospital's radiology department, the dental clinic of the stomatological hospital, and the laboratories of some scientific research units, etc.

As a new medical X-ray protection material, W-Ni-Cu alloy (tungsten-based alloy), is lead-free, environmentally-friendly and non-magnetic, and has high density (~18.8g/cm3), strong ability to absorb high-energy rays. Also, it is machinable and weldable. Besides, it has properties of high hardness, high strength and low coefficient of thermal expansion. Therefore, W-Ni-Cu alloy is widely used in the field of medical radiation shielding sensitive to the magnetic environment.

Movable tungsten alloy protective screen is made of high-performance tungsten alloy material - a new shielding material (traditional shielding material - lead) with excellent radiation shielding performance, so it is often for shielding protection in X-ray imaging rooms, dental clinics, wards and operating rooms, to protect patients from X-rays and other radiation.

Tungsten alloy radiation-proof foil is the first choice for medical radiation shielding as it has strong ability to absorb radiation such as gamma ray and X ray. Compared with foils made of traditional shielding materials such as lead, the shielding performance of tungsten alloy foils is much better than others. Due to its high density, the volume of tungsten alloy foil is 1/3 smaller than lead foil, but shielding function is equivalent.

Tungsten alloy vial shield is made of high quality tungsten alloy with a thickness of 6 mm in every direction (Eq to 10 mm lead at 150 KeV), which is suitable for storage and use of vials containing radiopharmaceuticals. And the vial shield is equipped with a threaded cap for the introduction of the vial, and with a magnetic cap for the access to the vial "cap".

Medical radiation-proof tungsten alloy screen is new type of protective screen that has excellent radiation shielding performance (which is better than that of lead screen) and is environmentally friendly, so it is expected to replace the traditional lead screen for use in CT rooms and dental hospitals.