Tungsten alloy bar is consist of 85-99% tungsten with balanced commonly nickel and iron or copper. The alloys are made by liquidphase sintering to give a structure consisting of almost pure tungsten particles in a matrix of the alloy elements.  The density is between 15.8 and 18.75 g/cc. It has excellent radiation resistance, thermal and electric conductivities, corrosion resistance and machinable.

 Applicaiton

The tungsten heavy alloy plays important role in manufacturing of collimator for nuclear medicine, nuclear research, geologging and homeland security. These materials provide reliable protection against X-rays and gamma radiation.

 
The Advantage

· Able to absorb the rays: The ability is so strong that it’s about 30-40% higher than lead; 

· High Thermal conductivity coefficient: 5 times that of die steel; 

· Low Thermal expansion coefficient: Only 1/2-1/3 of that of iron or steel; 

· With good weld-ability and process-ability.