MoLa and MoY molybdenum alloys for high-temperature applications
The addition of 0.03 to 0.7 percent by weight of lanthanum oxide or yttrium oxide to molybdenum significantly improves the high-temperature strength and increases the recrystallization temperature compared to pure molybdenum. These oxide particles act as barriers in the microstructure, effectively inhibiting unwanted grain growth at high temperatures – a common problem with pure molybdenum. MoLa and MoY alloys are therefore particularly suitable for demanding high-temperature applications where pure molybdenum alloys reach their limits due to grain growth and loss of strength, such as in furnace components, heating wires, heating cables, furnace boats, filaments and pins and wires for lamps and coils.
Product selection and material properties:
We supply the following material alloys as standard grades
Grade
Molybdenum
Additive
Available in
Properties / Download
MoLa 0.03
MO: > 99.9 %
La₂O₃: 0.03 %
Rods, electrodes, pins, wires, sheets, plates, ribbons or according to drawing
Material Data Sheet
MoLa 0.3
MO: > 99.7 %
La₂O₃: 0.3 %
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Material Data Sheet
MoLa 0.7
MO: > 99.3 %
La₂O₃: 0.7 %
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Material Data Sheet
MoY
MO: > 99.3 - 99.5 %
Y₂O₃: 0.5 - 0.7 %
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Material Data Sheet
Metallography:
Specifications and standards
Our molybdenum meets the specifications:
ASTM F289 (Standard Specification for Molybdenum Wire and Rod for Electronic Applications)
ASTM B386 (Standard Specification for Molybdenum and Molybdenum Alloy Plate, Sheet, Strip, Foil, and Ribbon)
ASTM B387/B387M-23 (Standard Specification for Molybdenum and Molybdenum Alloy Bar, Rod, and Wire)
ASTM F364 (Standard Specification for Molybdenum Flattened Wire for Electron Tubes)
Delivery program:
Rods, pins, wires, sheets, plates, strips and finished parts according to customer drawings