TZM Alloy - Titanium Zirconium Molybdenum


TZM alloy(Titanium-Zirconium-Molybdenum) (High Temperature Alloy) is a solid-solution hardened and particle-strengthened molybdenum based alloy. The development of a Mo-Ti solid solution and the fine dispersed Ti-carbides are responsible for the excellent strength properties at temperatures up to 1400°C. The recrystallization temperature of TZM (Titanium-Zirconium-Molybdenum) alloy is approximately 250°C higher than moly and it offers better weldability.

TZM alloy (Titanium-Zirconium-Molybdenum) is an alloy of 0.50% Titanium, 0.08% Zirconium and 0.02% Carbon with the balance molybdenum. TZM (Titanium-Zirconium-Molybdenum) is manufactured by either P/M or Arc Cast technologies and is of great utility due to its high strength/high temperature applications, especially above 2000°F.

TZM Plate TZM Molybdenum (Titanium-Zirconium-Molybdenum) has a higher recrystallization temperature, higher strength, hardness and good ductility at room and elevated temperatures than unalloyed Molybdenum. In addition, TZM alloy (Titanium-Zirconium-Molybdenum) exhibits good thermal conductivity, low vapor pressure, good corrosion resistance and is machinable.

TZM Molybdenum Products

CTOMS stocks TZM molybdenum (Titanium-Zirconium-Molybdenum) in a variety of forms and dimensions. Below are most of the standard stock form/sizes. If you do not see the size or form of TZM Molybdenum (Titanium-Zirconium-Molybdenum) that you require, please call one of our materials experts; our sales people are very knowledgeable and can assist you. We can cut, slit, shear, or center less grind TZM Molybdenum to your exact specifications, and we also have tremendous versatility when it comes to custom sizes, packages, and unusual materials

TZM sheet/plate

The finer grain structure of TZM alloy (Titanium-Zirconium-Molybdenum) and the formation of TiC and ZrC in the grain boundaries of the moly inhibit grain growth and the related failure of the base metal as a result of fractures along the grain boundaries. This also gives it better properties for welding. TZM alloy costs approximately 25% more than pure molybdenum and costs only about 5-10% more to machine. For high strength applications such as rocket nozzles, furnace structural components, and forging dies, it can be well worth the cost differential.

TZM molybdenum is available in sheet and rod form in basically the same size range as moly with the exception of thin foil. Rembar is experienced in the fabrication of TZM alloy(Titanium-Zirconium-Molybdenum). Refer to the separate TZM sheet.

TZM molybdenum and Moly Alloys have higher recrystallization temperature, high heat resistance and better creep resistance over pure Mo.

TZM sheet

Advantages of TZM alloy compared to pure Mo:

  • better creep resistance
  • higher recrystallization temperature
  • better high-temperature strength
  • better welding properties

TZM alloy typical areas of application:

  • components for HIP, sintering and heat treatment furnaces
  • metals for rotating anodes for medical diagnostics
  • boats for annealing and sintering processes (temperatures up to 1400 °C)
  • forming tools such as hot runner nozzles for plastic injection moulding
  • moulds for light-alloy casting
  • billets for the isothermal forging

Propertities of TZM alloy:

Material Density(g/cm3) Melting Point(℃ ) Boiling Point(℃ )
TZM 10.22 2617 4612

Mechanical properties of TZM alloy:

Mechanical properties Elongation/% Modulus elasticity/GPa Yield strength/MPa Tensile strength /MPa Fracture toughness

Datas <20 320 560-1150 685 5.8-29.6

High temperature tensile strength and elongation of TZM alloy

Temperature/℃ Tensile strength/MPa Elongation/%
RT 1140-1210 7.5-13.0
1000 700-720 5.2
1200 320-360 9.0
1300 190-210 11.5-13.5
1400 140-170 11.0-16.0

Thermal and electrical properties of TZM alloys

Properties Coefficient of thermal expansion/K-1
Thermal conductivityW /m·K
Working temperature/℃
Datas 5. 3×10-6 126 400 (5. 3~5. 5)×10-8

If you have any interest or inquiry of TZM alloy, please feel free to contact us by email:, or by telephone:86 592 512 9696/86 592 512 9595.

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