Unalloyed tantalum (ASTM F560) is a highly pure refractory metal (≥99.5% Ta) prized for its exceptional corrosion resistance, biocompatibility, and ability to withstand extreme temperatures without degradation. It is widely used in chemical processing equipment, medical implants, and aerospace/defense applications where exposure to aggressive corrosive environments or physiological fluids demands a material that remains stable and inert over extended service life. Engineers select tantalum when stainless steels and nickel alloys prove insufficient due to chloride pitting, sulfuric acid attack, or when direct contact with living tissue requires proven biocompatibility without elution of harmful ions.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | 35.00 | - | — | ||
Hardness (Vickers)(HV) | 80.00 | HV | — | ||
Poisson's Ratio(ν) | 0.3500 | - | — | ||
Ultimate Tensile Strength(σUTS) | 285.0 | MPa | — | ||
Yield Strength (0.2% offset)(σy) | 170.0 | MPa | ASTM F560, annealed | ||
Young's Modulus(E) | 186.0 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Melting Point / Solidus(Tm) | 3,290.2 | K | — | ||
Thermal Conductivity(k) | 57.50 | W/(m·K) | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 16.60 | kg/m³ | — |