Grade: R05200, R05400
Ta wire diameter: 0.1~4mm * L
Executive standard: ASTM B365 ASTM F560
Purity: ≥ 99.95%, 99.99%
Tantalum wire form: straight wire, coiled wire
Tantalum wire status: hard, semi hard, annealed
Applications of Tantalum wire
Capacitor grade tantalum wire is mainly used to make the anode lead
of tantalum electrolytic capacitor. The tantalum wire with the
smallest diameter is Φ 0.10mm. It can also be made into tantalum
yarn or tantalum mesh. Tantalum wire is the key material for making
tantalum capacitor. Tantalum capacitor is the best capacitor. About
65% of tantalum in the world is used in this field.
High oxygen resistant brittle tantalum wire can also be used to
make tantalum foil capacitors.
Tantalum wire can be made heating parts of vacuum high temperature
furnace, used as vacuum electron cathode emission source, ion
sputtering and spraying materials.
Tantalum wire made by Sanhui
The tantalum wire surface is smooth, clean, free of oil stain,
crack, burr and random winding, no knotting, crossing, etc.
Chemical Composition of Tantalum Wire
| Chemistry ppm |
| Designation | Chief component | Impurities maxmium |
| Ta | Nb | Fe | Si | Ni | W | Mo | Ti | O | C | H | N |
| Ta1 | Remainder | 300 | 40 | 30 | 20 | 40 | 40 | 20 | 150 | 40 | 15 | 20 |
| Ta2 | Remainder | 800 | 100 | 100 | 50 | 200 | 200 | 50 | 200 | 100 | 15 | 100 |
| TaNb3 | Remainder | <35000 | 100 | 100 | 50 | 200 | 200 | 50 | 200 | 100 | 15 | 100 |
| TaNb20 | Remainder | 170000-
230000 | 100 | 100 | 50 | 200 | 200 | 50 | 200 | 100 | 15 | 100 |
| Ta2.5W | Remainder | 400 | 50 | 30 | 20 | 30000 | 60 | 20 | 150 | 50 | 15 | 60 |
| Ta10W | Remainder | 400 | 50 | 30 | 20 | 110000 | 60 | 20 | 150 | 50 | 15 | 60 |
Specification of Tantalum Wire
| Diameter (mm) | Tolerance (mm) |
| 0.2-0.5 | <0.007 |
| 0.5-0.7 | <0.010 |
| 0.7-1.5 | <0.015 |
| 1.5-2.0 | <0.020 |
| 2.0-3.0 | <0.030 |
| 3.0-4.0 | <0.040 |
Mechanical Properties of Tantalum Wire
| State | Tensile strength (Mpa) | Elongation (%) |
| Annealed (M) | 300-750 | 10-30 |
| Semi-hard (Y2) | 750-1250 | 1-6 |
| Hard (Y) | >1250 | 1-5 |
Specification of Other Tantalum Products
| Thickness (mm) | Width (mm) | Length (mm) |
| Foil | 0.05~0.1 | 30~150 | >=200 |
| Sheet | 0.1~0.5 | 30~500 | >=200 |
| Board | 0.5~15 | 50~1000 | >=200 |
