Tungsten heavy alloys generally are refractory metal, which have two-phase composites consisting of W-Ni- Fe or W-Ni- Cu or even W-Ni-Cu-Fe, some tungsten alloy is added Co, Mo, Cr, etc. It could be made as various shapes, such as rod, cube, block, brick, ring, etc.
Usually, tungsten alloy ring could be manufactured as the parts of military defense, extrusion die, some counterweights, such as yacht counterweights, vehicle counterweights, airplane counterweights, helicopter counterweights, boat counterweights, tank counterweights, etc.

Grade	Specification
	Density g/cm³	Hardness HRC	Tensile strength MPa	Elongation %	Impact toughness MJ/m²
W273	17.10±0.15	≥23	≥900	≥24	≥1.30
W263	17.25±0.15	≥23	≥900	≥23	≥1.20
W253	17.40±0.15	≥24	≥900	≥22	≥1.10
W243	17.60±0.15	≥24	≥920	≥20	≥0.90
W232	18.10±0.15	≥25	≥920	≥14	≥0.45
W231	18.30±0.15	≥26	≥920	≥12	≥0.30
W221	18.50±0.15	≥27	≥920	≥10	≥0.22
WNiCu	16.00-18.50	≥22	≥450	2-8