Molybdenum-lanthanum (Mo-La) alloy — pure molybdenum doped with 0.6–1.2% La₂O₃. The finely dispersed La₂O₃ particles pin dislocations, raising the recrystallization temperature and high-temperature creep resistance while lowering the ductile-brittle transition temperature, improving ductility and anti-sag performance. Supplied as rod Ø1–150 mm and plate 0.5–50 mm for petrochemical, energy, aerospace and high-temperature furnace applications.
| Form | Size (mm) |
|---|---|
| Rod | Φ1 – 150 · length custom |
| Plate | 0.5 – 50 thick · width & length custom |
| Composition | Mo + 0.6 – 1.2% La₂O₃ |
| Composition | Mo + 0.6 – 1.2% La₂O₃ |
| Tensile strength (RT) | 650 MPa |
| Elongation (RT) | 25% |
| Tensile strength (1000 °C) | 220 MPa |
| Elongation (1000 °C) | 20% |
| Note | Values for Ø30 mm rod |
| Benefits | Higher recrystallization temp · creep & anti-sag resistance |
| Atomic number | 42 |
| CAS number | 7439-98-7 |
| Atomic mass | 95.94 g/mol |
| Melting point | 2620 °C |
| Boiling point | 4639 °C |
| Density (20 °C) | 10.22 g/cm³ |
| Crystal structure | Body-centered cubic |
| Thermal expansion (20 °C) | 5.2 × 10⁻⁶ m/(m·K) |
| Thermal conductivity (20 °C) | 142 W/(m·K) |
| Specific heat (20 °C) | 0.25 J/(g·K) |
| Electrical conductivity (20 °C) | 17.9 × 10⁶ S/m |
| Resistivity (20 °C) | 0.056 (Ω·mm²)/m |
Mo + La₂O₃ powders mixed to grade.
Cold isostatic pressing.
Medium-frequency sintering furnace.
Deformation processing to disperse La₂O₃.
Polished and machined to finish.
Lining material for high-pressure reactors against strong acids and alkalis.
Structural materials and fuel-element cladding for reactors.
High-temperature engine parts and rocket-engine nozzles.
Heaters, shields and parts needing high creep and anti-sag resistance.
Send your form (rod / plate), dimensions and drawing. Quotes within one business day.