Specification :

Tungsten wire drawing is accomplished by coating the wire with a graphite lubricant, heating to a red heat, and then drawing through tungsten carbide or diamond dies. The process is sometimes referred to as hot cold-working, which means that, while the wire is hot, the temperature is still below the recrystallization range. Accordingly, as the cross-sectional area is reduced, strength and ductility increase. The as-drawn wire at finished size subsequently may be cleaned, straightened, or annealed. Through various drawing methods and annealing steps, We produces different physical characteristics in wire of a given size. Our control of each manufacturing step from tungsten ore to finished wire assures reliability and reproducibility.