Tungsten Alloy-90%WNIMOFE is a tungsten based material made using special high temperature powder metallurgy techniques. It is used in resistance welding, pressure die casting and hot extrusion dies applications. 90%WNIMOFE material has a low coefficient of thermal expansion, hot erosion resistance and good thermal conductivity. Tungsten is used as a base due to its high melting point and low coefficient of thermal expansion. Elements added to the tungsten enhance machinability and ductility.

Good thermal conductivity increases cooling in difficult to cool areas and can increase production rates. Material properties established during the production of 90%WNIMOFE eliminate the problems often associated with heat treatment of other standard tool materials.

With 90%WNIMOFE as the base for your dies, you will get more additional benefit as:
Longer die life
Better surface finishes on products
Fewer rejects Lower cost
Less porosity in heavy sections

Application: Hot Extrusion Dies, Die Cast Tooling, and high mass and gyro. Machinability is similar to gray iron.