The Tungsten bar of 99.999% purity is mainly used as material for high standard bearing steels, automobiles, high-speed railways, high precision equipment and high-tech weapons. The bar of 99.99% purity is mainly used in alloy tool steels, high quality clean steels and high performance special steels, etc.. The bar of 99.95% to 99.98% purity is mainly used to forge special steels and cast raw materials of drawn steel wires. The bar of 99.9% purity is mainly used as precision casting ingredient and steel-smelting additive, etc..

 

Description	Grade	W content %	Density  g/cm3	Dimensions
Pure tungsten bars	TW-1 BW-2	≥99.95% ≥99.96% ≥99.97% ≥99.98% ≥99.99%	≥17.5 ≥18.0-19.0	12x12x400 14x14x450 16x16x600
Tungsten bar for drawing wire	TW-2.1 BW-2.1	≥99.95%	≥17.5 ≥18.0-19.0	(10-16)x (10-16)x(≥300)
Tungsten bars for steel smelting	TW-1 TW-4	≥99.95% ≥99.0%	≥17.5	(10-16)x (10-16)x(≥30)
Tungsten Blanks	BW-1	≥99.95%	≥18.0	(20-40)x(20-90)x(200-600)