... W-Ni- Fe or W-Ni- Cu or even W-Ni-Cu-Fe, some tungsten alloys also contain Co, Mo, Cr, etc ... Ni-Fe, W-Ni-Cu 4. Surface: Sinter state, finish state 5. Application: balance weight, Military industry. Appliance of tungsten heavy alloy brick Tungsten alloy ... capacity, excellent hardness, superior wearing resistance, high ultimate tensile strength, high temperature resistance, etc. Especially, Because of its ...