TZM alloy (Titanium-Zirconium-Molybdenum) is an alloy of 0.50% Titanium, 0.08% Zirconium and 0.02% Carbon with the balance molybdenum. TZM Molybdenum has a higher recrystallization temperature, higher strength, hardness and good ductility at room and elevated temperatures than unalloyed Molybdenum.
TZM alloy (Titanium-Zirconium-Molybdenum) is an alloy of 0.50% Titanium, 0.08% Zirconium and 0.02% Carbon with the balance molybdenum. TZM Molybdenum has a higher recrystallization temperature, higher strength, hardness and good ductility at room and elevated temperatures than unalloyed Molybdenum.
Advanced Refractory Metals is a trusted supplier and manufacturer of pure molybdenum and molybdenum alloys. Various forms and dimensions are available.
Form |
Size (mm) |
Process |
Surface |
Wire (straight or rolled) |
Dia.: 0.5-4.0 Length: Customized |
- |
Black oxide; Chemically cleaned |
Rod |
Dia.: 4.0-100 Length: <2000 |
Drawing; swaging |
Black oxide; Chemically cleaned; Grinding |
Plate |
Thickness: 4.75-50 Width: Customized Length: Customized |
Forging; rolling |
Chemically cleaned; Grinding |
Tube |
O.D.: 0.8"-20" Length: Customized |
Sintering; drilling |
Fine Turning; Grinding |
* Properties 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 /(MPa·m1/2 |
Data | <20 | 320 | 560-1150 | 685 | 5.8-29.6 |
* Thermal and electrical properties of TZM alloys
Properties | The coefficient of thermal expansion/K-1 (20~100℃) |
Thermal conductivity W /m·K | Working temperature/℃ | Resistivity/Ω·m |
Data | 5. 3×10-6 | 126 | 400 | (5. 3~5. 5)×10-8 |
Aerospace Components: TZM alloy is extensively used in rocket engine nozzles and re-entry vehicle heat shields due to its ability to maintain structural integrity at extreme temperatures up to 1,600°C.
High-Temperature Furnace Systems: TZM alloy serves as critical heating elements, radiation shields, and support structures in industrial furnaces, leveraging its exceptional melting point of ~2,620°C.
Glass Manufacturing Equipment: TZM alloy is the material of choice for glass melting electrodes, stirrers, and forming molds, where its thermal stability prevents contamination and deformation.
Nuclear Reactor Components: TZM alloy is utilized in reactor core components and fuel cladding, benefiting from its neutron absorption properties and radiation resistance.
Metal Forming Tools: TZM alloy is employed in die-casting molds, extrusion dies, and hot-work tooling, where its high-temperature strength and wear resistance significantly extend tool life.
Semiconductor Industry: TZM alloy finds application in high-temperature processing equipment for silicon wafer production, thanks to its thermal conductivity and vacuum compatibility.
Our TZM alloys are wrapped in foam and packaged in plywood cases to ensure safe storage and transportation.
Q1. How does TZM alloy differ from pure molybdenum?
- Composition:
- Pure Mo: 99.95% molybdenum
- TZM: Mo + 0.5% Ti + 0.1% Zr (enhances strength and creep resistance)
- Performance:
- High-temp strength: TZM retains 2× higher strength above 1,300°C.
- Creep resistance: Superior under prolonged heat/stress.
- Recrystallization temp: TZM (~1,100°C) > Pure Mo (~900°C).
Q2. What’s the working temperature range of TZM?
- Optimal range: 700–1,400°C (in vacuum/inert gas).
- Oxidation: Begins at 400°C; rapid above 500°C (requires protective coatings).
- Strength comparison:
- Room temp: Similar to pure Mo.
- >1,300°C: Twice as strong as pure Mo.
Q3. Key applications of TZM alloy?
1. Aerospace/Defense: Rocket nozzles, heat shields.
2. Industrial Furnaces: Heating elements, crucibles.
3. Nuclear/Energy: Reactor components, plasma-facing parts.
4. Electronics: Heat sinks, semiconductor tools.
Related reading:
Titanium Zirconium Molybdenum (TZM) Alloy For Hot Runner Nozzles
TZM Alloy Applications, Properties & Preparation Methods