TZM

TZM Alloy

Mo-0.5Ti-0.08Zr-0.03C

Titanium-Zirconium-Molybdenum alloy - The premium choice for demanding high-temperature structural applications requiring superior strength and creep resistance.

Material Properties

TZM is a precipitation-hardened molybdenum alloy containing titanium, zirconium, and carbon. These additions form fine carbide dispersions that significantly improve high-temperature strength, creep resistance, and recrystallization temperature compared to pure molybdenum.

Melting Point2617°C (4743°F)
Density10.2 g/cm³
Thermal Conductivity126 W/mK
Tensile Strength (RT)690-900 MPa
Tensile Strength (1000°C)400-500 MPa
Recrystallization Temperature1400°C

Applications

  • Die casting dies and cores
  • Hot forging dies and punches
  • Extrusion dies for light metals
  • Piercing plugs and mandrels
  • Isothermal forging dies
  • Rocket nozzles and thrust chambers
  • X-ray rotating anodes
  • High-temperature furnace components
  • Resistance welding electrodes
  • Glass processing equipment

Advantages Over Pure Molybdenum

Higher Strength

Approximately 2x the tensile strength of pure Mo at elevated temperatures.

Better Creep Resistance

Superior long-term performance under load at high temperatures.

Higher Recrystallization

Recrystallization temperature ~250°C higher than pure molybdenum.

Good Weldability

Can be welded using electron beam or TIG in protective atmosphere.

Available Forms

Rods & Bars
Plates & Sheets
Forgings
Discs
Rings
Die Inserts
Electrodes
Custom Parts

Nominal Composition

Mo

Balance

Ti

0.40-0.55%

Zr

0.06-0.12%

C

0.01-0.04%

O

<0.003%

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