The main purpose of hafnium block is to make control rods for nuclear reactors. Pure hafnium is an important material in atomic energy industry because of its plasticity, easy processing, high temperature resistance and corrosion resistance. Hafnium has a large thermal neutron capture cross section and is an ideal neutron absorber. It can be used as a control rod and protective device for atomic reactor. Hafnium powder can be used as rocket propeller. The cathode of X-ray tube can be manufactured in the electrical industry. Hafnium alloy can be used as the front protective layer of rocket nozzle and glider re-entry aircraft, and HF TA alloy can be used to make tool steel and resistance materials. Hafnium is used as an additive element in heat-resistant alloys, such as tungsten, molybdenum and tantalum. HFC can be used as cemented carbide additive due to its high hardness and melting point.

The main purpose of hafnium block is to make control rods for nuclear reactors. Pure hafnium is an important material in atomic energy industry because of its plasticity, easy processing, high temperature resistance and corrosion resistance. Hafnium has a large thermal neutron capture cross section and is an ideal neutron absorber. It can be used as a control rod and protective device for atomic reactor. Hafnium powder can be used as rocket propeller. The cathode of X-ray tube can be manufactured in the electrical industry. Hafnium alloy can be used as the front protective layer of rocket nozzle and glider re-entry aircraft, and HF TA alloy can be used to make tool steel and resistance materials. Hafnium is used as an additive element in heat-resistant alloys, such as tungsten, molybdenum and tantalum. HFC can be used as cemented carbide additive due to its high hardness and melting point. The melting point of 4TaC · HFC is about 4215 ℃, which is the compound with the highest melting point known.