Tungsten Atomic Symbol : W Atomic Number : 74 Melting Point : 3410 DC Density : 19.30 g/cc Content Pure tungsten ( W 99.95% ); Process Sintering, Forging, Rolling and Machining. Usage High-temperature furnace industry, glass and crystal producing, illumination, electronics, electron-vacuum etc. Tungsten Rods and Tungsten bars W content ≥ 99.95% Diameter(mm):1.5≤d≤100 mm Length(mm):L≤1000