Tantalum R05200 / R05400 are commercially pure tantalum grades known for their exceptional corrosion resistance, very high melting point, and excellent ductility. These grades exhibit outstanding resistance to almost all acids (except hydrofluoric acid), making them ideal for highly aggressive chemical environments and extreme service conditions.
Tantalum R05200 / R05400 offer excellent fabricability, weldability, and stable mechanical properties even at elevated temperatures. They are commonly used in chemical processing equipment, heat exchangers, reactors, condensers, pharmaceutical and aerospace components, and high-purity applications where long-term reliability, corrosion resistance, and performance under severe operating conditions are critical for safe and efficient operation.
CHEMICAL COMPOSITION OF TANTALUM R05200 / R05400 ROUND BAR
Grade
C
O
N
H
Nb
Fe
Ti
W
Mo
Si
Ni
Ta
R05200
0.010
0.015
0.010
0.0015
0.100
0.010
0.010
0.050
0.020
0.005
0.010
Remainder
MECHANICAL PROPERTIES OF TANTALUM R05200 / R05400 ROUND BAR
Grade
Tensile Strength (psi / MPa) min
Yield Strength (psi / MPa) min
Elongation (% in 1 inch gauge length) min
R05400
25,000 (172)
15,000 (103)
25
PHYSICAL PROPERTIES OF TANTALUM R05200 / R05400 ROUND BAR
Density (lb/in³)
Thermal Expansion (min/in/°F)
Thermal Conductivity (BTU/hr·ft·°F)
Specific Heat (BTU/lb·°F)
Modulus of Elasticity (psi)
0.286
9.2 × 10⁻⁶
9.3
0.12
28 × 10⁶
💡 Practical Difference in Use
Use Tantalum R05200 / R05400 Round Bars when: exceptional corrosion resistance, high-temperature stability, and excellent chemical inertness are required. Tantalum R05200 and R05400 are commercially pure tantalum grades designed for extreme chemical environments where most metals fail, offering outstanding resistance to acids (except HF) and long-term structural reliability.
→ Example: chemical processing equipment, heat exchangers, reactors, condensers, acid handling systems, and high-purity process components.
Bright Finished / Machined Tantalum R05200 / R05400 Round Bars when: precise dimensional accuracy, smooth surface finish, and high-purity machining are critical for performance-sensitive applications. Bright tantalum bars ensure consistent quality, excellent ductility, and reliable results in precision machining and fabrication.
→ Example: precision shafts, fasteners, laboratory components, medical implants, aerospace parts, and finely machined corrosion-resistant components.
Applications of Tantalum R05200 / R05400 Round Bars
Tantalum R05200 / R05400 round bars are widely used in industries that demand extreme corrosion resistance and high reliability.
Chemical Processing Industry: Reactors, heat exchangers, acid-handling components.
Pharmaceutical Industry: High-purity equipment and process components.
Aerospace & High-Tech Applications: High-temperature and corrosion-resistant parts.
When to Choose Tantalum R05200 / R05400 Round Bars?
Selection depends on corrosion severity, operating temperature, purity requirements, and long-term performance expectations.
Choose Tantalum R05200 / R05400 Round Bars when:
Outstanding resistance to aggressive acids and chemicals is required
Excellent performance in high-temperature environments is needed
Superior ductility and formability are important
Long service life in extreme corrosion conditions is essential
High purity material is required for critical processes
Used in chemical, pharmaceutical, or high-tech industries
