Corrosion Resistance Polished Surface 99.95% Pure Tantalum Rods/Bars
| Commodity Name | Pure tantalum rod/bar |
| Purity | Ta ≥99.95% |
| Density | 16.68 |
| Specification Range | Dia5-110mm x L |
| Surface | Bright |
| Property | Good high temperature resistance, corrision resistance, high strength, high melting point etc. |
| Usage | Heating components of vacuum high temperature furnace; Electronic industry (electronic components, electronic equipment, electronic devices) such as capacitors; Anode leads of tantalum electrolytic capacitors, vacuum electron cathode emission sources, ion sputtering and spraying materials Chemical reaction equipment, corrosion resistant fasteners, high temperature components, cathodic protection system of steel structure |
| Standard | ASTM B365 |
| Certificate | ISO 9001;2015 |
| Package | Standard plywood box with foam inside |
| Lead time | 7-25 days(depend on the quantity) |
What is so special about tantalum?
Tantalum (Ta), a transition metal with atomic number 73, is exceptional due to a rare combination of physical, chemical, and biological properties that make it indispensable across industries. Its uniqueness stems from three core attributes:
Extreme Heat Resistance: Tantalum has the fourth-highest melting point of all metals (3,017°C), trailing only tungsten, rhenium, and osmium. This property enables its use in high-temperature environments, such as turbine blades in jet engines, rocket nozzles, and nuclear reactor components. Unlike steel, which softens above 1,500°C, tantalum retains structural integrity at extreme temperatures, critical for aerospace and energy applications.
Unmatched Corrosion Resistance: Tantalum forms a passive oxide layer (Ta₂O₅) when exposed to air or moisture, making it inert to nearly all acids, alkalis, and organic compounds-even hydrofluoric acid (HF), which dissolves glass. This resistance makes it ideal for chemical processing equipment (e.g., reaction vessels, pipes) and marine hardware. In medical settings, tantalum implants (e.g., bone grafts, stents) resist corrosion in bodily fluids, avoiding toxic leaching and ensuring long-term biocompatibility.
Electronic Versatility: Tantalum's most ubiquitous use is in capacitors, where its ability to store charge in a thin oxide film (Ta₂O₅) enables miniaturization. A single tantalum capacitor can replace dozens of larger ceramic or aluminum capacitors, reducing size and energy loss in devices like smartphones, wearables, and medical implants (e.g., pacemakers). Its stability across temperature ranges (-55°C to +200°C) ensures reliability in harsh conditions, making it irreplaceable in aerospace electronics and defense systems.
Beyond these traits, tantalum is also dense (16.6 g/cm³, heavier than lead) and ductile, allowing it to be drawn into fine wires or formed into complex shapes without cracking. These properties, combined with its relative scarcity (annual production ~3,000 tons vs. gold's ~3,000 tons), drive its status as a "critical mineral" in modern technology. Without tantalum, advances in miniaturized electronics, renewable energy storage, and life-saving medical devices would stall-a testament to its irreplaceable role.
