Tantalum (Unalloyed, ASTM F560)
VerifiedmetalUNS R05200· Ta· Surgical Tantalum
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.
Surgical implants and orthopedic devicesChemical processing vessels and reactorsHigh-temperature aerospace componentsCorrosion-resistant heat exchangersMedical imaging X-ray anodesElectrolytic capacitors
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | — | - | — | — | |
Hardness (Vickers)(HV) | — | HV | — | — | |
Poisson's Ratio(ν) | — | - | — | — | |
Ultimate Tensile Strength(σUTS) | — | ksi | — | — | |
Yield Strength (0.2% offset)(σy) | — | ksi | ASTM F560, annealed | — | |
Young's Modulus(E) | — | ksi | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Melting Point / Solidus(Tm) | — | °F | — | — | |
Thermal Conductivity(k) | — | BTU/(hr·ft·°F) | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | lb/in³ | — | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Export Control
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.