Ta
metal· Ta
Tantalum (Ta) is a refractory transition metal known for its exceptional corrosion resistance, high melting point, and excellent biocompatibility. It is widely used in chemical processing equipment, surgical implants, high-temperature applications, and electronic components where resistance to harsh environments and biological compatibility are critical requirements. Engineers select tantalum when standard stainless steels or nickel alloys are insufficient, particularly in corrosive chemical environments or biomedical contexts where material stability and tissue acceptance are paramount.
surgical implants and bone fixationchemical processing equipmenthigh-temperature reactorselectronic capacitors and interconnectscorrosion-resistant pipingaerospace and defense components
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 28,326.7 | ksi | — | ||
| ↳ | 28,040.1 | ksi | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.2992 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | — | ||
Poisson's Ratio(ν)2 entries | 0.3620 | - | — | ||
| ↳ | 0.4500 | - | — | ||
Shear Modulus(G)2 entries | 8,610.6 | ksi | — | ||
| ↳ | -2,242.3 | ksi | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.5806 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | 6.560 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | 0.2480 | eV/atom | — |
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.