TZM Molybdenum Overview
TZM (titanium-zirconium-molybdenum) is molybdenum alloyed with about 0.5% titanium and 0.1% zirconium. These small additions raise the recrystallization temperature from about 1100 °C for pure molybdenum to about 1400 °C and give TZM higher strength and creep resistance at high temperature, while it keeps molybdenum's density, very high melting point and low thermal expansion.
Midwest Tungsten Service stocks TZM rod made to ASTM B387 and TZM sheet and plate made to ASTM B386, both Molybdenum Alloy 364 (powder metallurgy), and machines custom TZM parts to your print.
TZM Molybdenum Properties & Uses
TZM Molybdenum Advantages
TZM Molybdenum Advantages
- Higher tensile strength than pure molybdenum
- Higher creep strength than pure molybdenum
- Higher recrystallization temperature than pure molybdenum
TZM Molybdenum Applications
TZM Molybdenum Applications
- Vacuum and high-temperature furnace hardware: heating-element supports, heat shields, fixtures, fasteners, boats and trays
- Hot-work tooling, die-casting cores and isothermal forging dies
- Rotating X-ray anode bodies and other parts that must keep their strength where pure molybdenum softens
TZM Molybdenum Properties
TZM Molybdenum Properties
| Composition | Molybdenum (balance), titanium 0.40–0.55%, zirconium 0.06–0.12% |
| Standards | ASTM B387 Molybdenum Alloy 364 (rod, bar); ASTM B386 Molybdenum Alloy 364 (sheet, plate) |
| Density at 20 °C | 10.2 g/cm³ (0.368 lb/in³) |
| Melting Point | about 2620 °C |
| Recrystallization Temperature | about 1400 °C (pure molybdenum about 1100 °C) |
| Thermal Conductivity at 20 °C | 126–130 W/m·K |
| Coefficient of Thermal Expansion (0–300 °C) | 5.3–5.7 × 10⁻⁶ /°C |
| Specific Heat | 0.25 J/g·K |
| Electrical Resistivity at 20 °C | 5.3–6.0 µΩ·cm |
| Modulus of Elasticity | 300–320 GPa (43.5–46.4 × 10⁶ psi) |
| Tensile Strength at Room Temperature, stress relieved (typical) | 116,000–145,000 psi (800–1,000 MPa) |
| Yield Strength 0.2%, stress relieved (typical) | 109,000–131,000 psi (750–900 MPa) |
| ASTM B387 Minimum Tensile Strength, stress-relieved bar | 85,000–115,000 psi, depending on diameter |
| Hardness (Vickers), stress relieved | 200–265 HV |
| Tensile Strength at 1000 °C (approx.) | 67,000 psi (460 MPa) |
| Magnetic | No |
Typical values from published producer data and ASTM standards; actual properties depend on product form, size and condition. Material certifications are available on request with purchase.
Custom TZM Molybdenum Solutions
While tungsten’s extreme hardness and high melting point make it notoriously difficult to machine, our experienced team specializes in taming this "unmachinable" metal. Using a combination of multi-axis CNC milling and advanced EDM drilling, we manufacture complex tungsten components to your exact prints with tolerances as tight as ±0.0005". Whether you need custom-sized raw materials or intricate finished parts, we deliver precision-engineered solutions with industry-leading speed.
Shop In-Stock TZM Molybdenum Materials
TZM Molybdenum Resources
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Midwest Tungsten Service manufactures high-temperature furnace components of molybdenum (including TZM and Lanthanum-doped moly), tungsten and tantalum.
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