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Mo-La Alloy (Molybdenum Lanthanum Alloy)


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Molybdenum lanthanum alloy (MoLa), also known as high-temperature molybdenum, is a molybdenum alloy that is doped with rare earth lanthanum to improve the high-temperature performance and other properties of molybdenum. Small quantities of lanthanum oxide particles (0.3 or 0.7 percent) give the molybdenum a so-called stacked fiber structure. This special microstructure is stable at up to 2 000°C. 

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Data sheet

MaterialsMolybdenum metal/TZM/MoLa Alloy
StandardASTM B387 & ASTM B386

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HM can mass-produce molybdenum-lanthanum alloy plates, molybdenum-lanthanum alloy bars, and various parts with a lanthanum oxide content of 0.8%-1.2%. The dimensions and accuracy that can be achieved are the same as those of pure molybdenum products.

Molybdenum Lanthanum Alloy Application

After molybdenum is doped with rare earth such as lanthanum, the recrystallization temperature of the material can be increased from 1000~1100℃ of molybdenum to 1500~1600℃, and its tensile strength at 20℃ can reach 1400Mpa, which is reflected in the creep resistance of the material during use. The performance is greatly increased, which greatly expands the use range and service life of molybdenum materials at high temperatures. At the same time, molybdenum rare earth alloys such as molybdenum cerium and molybdenum lanthanum not only have better high-temperature performance than pure molybdenum but also have better electron emission performance, so they are used in the electronic information industry.

Molybdenum Lanthanum Alloy Products

  • Plate
  • Sheet
  • Strip
  • Rod 
  • Tube
  • Fastener

Molybdenum Lanthanum Alloy Type

Mo-Lanthanoxid (ML)


0.3 % La2O3

MLR (R = Recrystallized)

0.7 % La2O3

MLS (S = Stress relieved)

0.7 % La2O3

MoILQ (ILQ = Incandescent Lamp Quality)

0.03 % La2O3

We provide customized molybdenum Lanthanum alloy products according to the dimensions or your engineered drawing.

Molybdenum and Molybdenum Alloys Materials

Name of material

Chemical composition (percentage by weight)

Mo (pure)



0.5 % Ti / 0.08 % Zr / 0.01 - 0.04 % C

Mo-Lanthanoxid (ML)

0.3 % La2O3

Molybdenum Lanthanum (Mo-La) Alloy can be used in the lighting industry, for example, for retaining and feed wires.

Molybdenum Lanthanum Alloy Packing

The Mo-Lanthanoxid (ML) will be packed in the wooden case supported with soft materials to ensure that the products thus packed will not shift inside the cases.

packing of Heeger Materials        Molybdenum packing

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