99.95% Tantalum Rod Polishing Surface Metal Tantalum Ta Bar
| 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) |




Dia6.35x300 R05200 Ta1 high pure tantalum bar tantalum alloy rod
Tantalum bar stock-pre-manufactured tantalum (Ta) rods in standardized or custom lengths-serves as the backbone of global supply chains for industries reliant on this rare metal. As demand for tantalum grows in electronics, aerospace, and healthcare, maintaining robust stock levels of high-quality tantalum bars has become a strategic priority for manufacturers and suppliers alike.
The importance of tantalum bar stock lies in its role as a buffer against supply chain disruptions. Tantalum ore (coltan) is primarily mined in the Democratic Republic of Congo (DRC), accounting for 60–70% of global production. Geopolitical instability, ethical concerns (e.g., conflict minerals), and logistical challenges (e.g., remote mining sites) can disrupt raw material extraction. Pre-produced tantalum bars, however, are often refined and processed in facilities outside the DRC, ensuring a steady supply even amid regional upheavals. Suppliers maintain diversified stockpiles, including different purity grades (99.9% to 99.99%) and diameters (from 1mm to 150mm), to cater to varied industrial needs.
Quality control is paramount in tantalum bar stock. Reputable suppliers adhere to strict certifications (e.g., ASTM A276, AMS 4928), ensuring bars are free from impurities that could compromise performance. Advanced testing methods-such as X-ray fluorescence (XRF) for chemical composition and ultrasonic testing for internal defects-are routine, guaranteeing that each bar meets or exceeds industry standards. For critical applications like medical implants or aerospace components, traceability (tracking the bar from ore to finished product) is also enforced, enhancing accountability and trust.
Beyond supply chain stability, tantalum bar stock supports innovation. Engineers and R&D teams rely on readily available bars to prototype new products, test material performance, and scale production. Custom orders-such as non-standard diameters or heat-treated bars-are increasingly common, reflecting the metal's adaptability to emerging technologies (e.g., next-gen batteries, quantum computing components).
In essence, tantalum bar stock is more than inventory; it is a lifeline for industries pushing the boundaries of technology. By ensuring consistent, high-quality supply, suppliers enable breakthroughs that define modern innovation.












