Tantalum Wire

Tantalum wire is deformed from tantalum rod by cold drawing, which could reduce wire’s diameter step-by-step through a number of die sets. Finished tantalum wire is preferably to be annealed for stress relief. We are also happy to supply tailored hardness via customized heating treatment.

Tantalum wire is delivered in coil, on spool, or cut to specific required length.

We have years of experience and know-how solutions to control the core requirements from customers, such as defect-free surface, precision tolerance, roundness, hardness, straightness, grain size stability and ductility , trace element analysis and mechanical properties. 

Tantalum wire serves various markets for example as anode lead wire in wet, solid and foil type tantalum capacitors. Due to its excellent bio-compatibility tantalum wire can be used in surgery as stitching wire for nerves and tendons. Its high temperature and corrosion resistant performance also makes tantalum extensively used as filaments for lighting, anti-chemical equipment building and as welding filler metals.

You can find more detailed information of our tantalum wire as described below:

Tantalum grades

Unalloyed tantalum – UNS R05200, UNS R05400

Tantalum-tungsten alloy - Ta-2.5%W, Ta-7.5W%, Ta-10%W

Tantalum-niobium alloy - Ta-3%Nb, Ta-20%Nb, Ta-40%Nb

Size & Tolerance

●  Diameter 0.1 mm to 6.5 mm

●  Coiled, spooled, or cut into length

●  Tolerance per ASTM or customer’s request

Specification

ASTM B365 - 12

ASTM F560 - 13 (for surgical)

Metallurgical Condition

Annealed

1/2 annealed

Unannealed

Surface

As-drawn

Pickled

Metallic bright

Roundness

Equal to or better than ASTM specification

Test & Inspection

●  Surface quality

●  Size tolerance & roundness

●  Chemical analysis

●  Tension properties

●  Grain size

●  Other test and inspection upon request

Certification

EN 10204 3.1

Third party inspection EN 10204 3.2