2219-T87

UNS A92219 aluminium
Validate composition

Cu-Mn aluminium alloy with excellent weldability, high strength, and cryogenic toughness. The alloy of choice for cryogenic propellant tanks in launch vehicles.

Applicable Standards

  • AMS 2770
  • ASTM B209
  • UNS A92219

Composition Ranges (wt %)

Element Min (%) Max (%) Typical Range
Al 91.2 94.8 ~93.0
Cu 5.8 6.8 ~6.3
Mn 0.2 0.4 ~0.3
Zr 0.1 0.25 ~0.17
Ti 0.02 0.1 ~0.06
Fe — 0.3 ~0.15
Si — 0.2 ~0.1
Al 91.2–94.8% Cu 5.8–6.8% Mn 0.2–0.4% Zr 0.1–0.25% Ti 0.02–0.1% Fe 0.0–0.3% Si 0.0–0.2%

Typical Applications

  • Cryogenic propellant tanks
  • Rocket structures
  • Pressure vessels
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 →