Purity :  99.98%min
Specs : according to ASTM B708 -98 R05200 and ASTM F560 UNS R05200.
Chemical composition :
            O         0.0150 %max
            C         0.0100 %max
            N         0.0100 %max
            H         0.0015 %max
            Fe       0.0100%max
            Ni        0.0100%max
            Si        0.0050 %max
            Mo       0.0200 %max
            W        0.0500 %max
            Nb       0.1000 %max
            Ta balance (typically 99.92%)
Physical & Mechanical property :
            Tensile strength     207 MPa min.
            Yield strength        138 MPa min. 
            Elongation             20%min
Dimensions: 0.025 mm x up to 5 mm x R/L
Typical size:   0.023mm x 0.40mm x R/L on spool;
                     0.025mm x 0.76mm x R/L on spool;
                     0.03 mm x 0.76 mm x 300 meters
                     (theoretical weight: 112gram/300meter);
                     0.049mm x 1.0mm x R/L on spool;
                     0.001" x .03" x R/L on spool;
Packing : wire roll in spool with vacuum container.

Application :  Tantalum ribbon or tantalum bands can be cut into tantalum marker bands (tantalum cut bands), which are used as medical device components where radiopacity is required, it is the excellent radiopaque marking.

Trade names : tantalum foil, tantalum film, tantalum strip, tantalum sheet, tantalum band, tantalum tape, tantalum fillet, tantalum foil in strip, tantalum bands, radiopaque markers (tantalum bands), tantalum thin film, tantalum marker, tantalum markers, tantalum per ISO 13782 -Implants for surgery -- Metallic materials -- Unalloyed tantalum for surgical implant applications, tantalum medical devices in conformity with ISO 13485 quality management system, etc.,