Tungsten copper W90 block is composed of 90% W and 10% Cu, its density is up to 16.75g/cm3, hardness reaches more than HB260, the bending strength is 1160MPa, the conductivity is 27%IACS and the softening temperature is more than 900℃.
Tungsten copper military throat insert is lining material of solid rocket motor nozzle, and its high temperature performance and ablation resistance directly affects the thrust and efficiency of the engine.