Tantalum Bar
Purity: 99.95%
Size: dia 19mm*350mm, 1.657kg/pc.
Grade: R05200, R05400,R 05252, R05255, R05240
Product Introduction
Tantalum ingots serve as the primary raw material for producing tantalum bars and rods. Due to their exceptional corrosion resistance, tantalum bars are widely used in the oil, chemical, and high-corrosion processing industries.
CHANGSHENG is a reliable supplier of high-quality tantalum bars and rods, offering customized solutions according to customer requirements.
Tantalum rods are typically produced by cold working ingots to final dimensions. Manufacturing processes include forging, rolling, swaging, and drawing, used individually or in combination to achieve precise size and performance requirements.
Product Characteristics
Tantalum-based rods and bars are mainly used in high-temperature and corrosion-resistant alloy systems, serving as key materials for advanced industrial applications.
High-purity tantalum bars (≥99.95%) are considered premium-grade materials with extremely low impurity content. These are typically manufactured using powder metallurgy, where tantalum powder is compacted and sintered at high temperature to form dense bars.
Material Properties
Tantalum is primarily found in tantalite ores and often coexists with niobium. It has the following characteristics:
High melting point and boiling point
Excellent ductility and workability
Low thermal expansion coefficient
Outstanding chemical stability
Extremely strong corrosion resistance
A stable oxide layer (Ta₂O₅) forms naturally on its surface, providing excellent protection against most corrosive environments.
Because of these properties, tantalum is widely used in:
Evaporation vessels
Electrodes and rectifiers
Capacitors and electronic components
Medical implants and tissue repair materials (thin sheets and wires)
Grades & Chemical Composition
R05200 – Unalloyed tantalum (electron-beam / vacuum arc melted)
R05400 – Unalloyed tantalum (powder metallurgy consolidated)
R05255 – Ta-10W (90% Ta, 10% W)
R05252 – Ta-2.5W (97.5% Ta, 2.5% W)
R05240 – Ta-40Nb (60% Ta, 40% Nb)
Purity
Tantalum Bar Purity: ≥ 99.95%
Mechanical Properties (Typical)
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|
| R05200 / R05400 | ≥ 207 | ≥ 138 | ≥ 20 |
| R05255 (Ta-10W) | ≥ 482 | ≥ 414 | ≥ 15 |
| R05252 (Ta-2.5W) | ≥ 276 | ≥ 207 | ≥ 20 |
| R05240 (Ta-40Nb) | ≥ 241 | ≥ 138 | ≥ 25 |
Surface & Condition Options
Hot-rolled / Cold-rolled
Alkaline cleaning
Electrolytic polishing
Machined / ground finish
Stress-relief annealed
Standards
ASTM B365 – Tantalum and Tantalum Alloy Rod and Wire
ASTM B708 – Plate, Sheet, and Strip
ASTM F560 – Surgical implant-grade tantalum
Applications
Chemical & Oil Industry
Heat exchangers
Reactor components
Corrosion-resistant piping systems
Industrial Heating
Furnace components
High-temperature structural parts
Anti-corrosion heating elements
Electronics
Capacitors
Rectifiers
Electronic vacuum components
Medical Applications
Surgical implants
Tissue repair materials
Biocompatible medical devices
Example Specification
Diameter: 19 mm
Length: 350 mm
Weight: 1.657 kg/pc
HS Code: 8103.90.90.90 (Wrought tantalum and articles thereof)
Key Advantages
Pure tantalum bars offer a rare combination of:
Extreme corrosion resistance
High melting point
Excellent ductility
Biocompatibility
Stable electrical properties
These properties make tantalum an ideal material for demanding industrial, medical, and electronic applications.
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