Tantalum (unalloyed)

UNS R05200 special
Validate composition

Pure tantalum with exceptional corrosion resistance to virtually all acids including HCl and H2SO4. Used in chemical reactors, capacitors, and medical implants.

Applicable Standards

  • ASTM B365
  • UNS R05200

Composition Ranges (wt %)

Element Min (%) Max (%) Typical Range
Ta 99.9 100.0 ~99.95
Nb — 0.1 ~0.05
Fe — 0.01 ~0.01
O — 0.015 ~0.01
Ta 99.9–100.0% Nb 0.0–0.1% Fe 0.0–0.01% O 0.0–0.015%

Typical Applications

  • Chemical reactor linings
  • Capacitors
  • Surgical implants
  • Heat exchangers
Validate my sample against this spec Identify unknown alloy ← Back to all alloys

Need a tamper-evident certificate for this material?

Immutable, timestamped, and shareable with your customer or auditor.

Start free pilot →