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) |
Is tantalum stronger than steel?
The term "stronger" is ambiguous, as material strength is measured across multiple properties: tensile strength (resistance to breaking under tension), hardness (resistance to deformation), yield strength (stress before permanent deformation), and fatigue resistance. Tantalum excels in some areas but not all when compared to steel, which itself encompasses diverse alloys (e.g., carbon steel, stainless steel, tool steel).
Tensile Strength: Pure tantalum has a tensile strength of ~900–1,500 MPa (megapascals). By contrast, low-carbon steel (common in construction) has a tensile strength of ~400–500 MPa, while high-strength alloy steels (e.g., maraging steel) can exceed 2,000 MPa. Thus, some steels are stronger than pure tantalum. However, tantalum's strength-to-weight ratio (strength per unit weight) is comparable to steel, as tantalum is denser (16.6 g/cm³ vs. steel's ~7.8 g/cm³).
Hardness: Tantalum's Vickers hardness ranges from 80–150 HV (depending on purity and heat treatment). Tool steels, after quenching and tempering, reach 60–70 HRC (Rockwell C scale), equivalent to ~700–800 HV-far harder than tantalum. Stainless steel, however, is softer (~200–300 HV). Thus, tool steels are significantly harder than tantalum.
Corrosion Resistance as "Strength": While not a mechanical property, tantalum's immunity to corrosion in aggressive environments (e.g., acids, saltwater) gives it a functional advantage over most steels, which require protective coatings (e.g., galvanization) to avoid rust. In this sense, tantalum is "stronger" for applications where longevity in harsh conditions is critical.
Fatigue Resistance: Tantalum maintains its strength under repeated stress better than many steels, especially high-carbon varieties prone to cracking. This makes it valuable in cyclic-loading applications like aircraft engine components.
In summary, tantalum is not universally "stronger" than steel, but its unique combination of high melting point, corrosion resistance, and fatigue tolerance makes it irreplaceable in specialized roles. Steel, by contrast, dominates in cost-effective, high-strength applications where corrosion is manageable. The choice between them depends on the specific demands of the application-whether prioritizing miniaturization (electronics), extreme temperature resistance (aerospace), or cost efficiency (construction).
