Pure Molybdenum rods for electrode

Products Name: Molybdenum rods

Nature: Single metal

Physical properties: high melting point, good thermal conductivity

Chemical properties: resistance to oxidation

Production process: forming, sintering, pendant forging, machining

Surface: Sintered molybdenum rods with a silvery grey metallic lustre


Introduction to molybdenum rods

Molybdenum rods have a high melting point, good thermal conductivity and low thermal expansion properties. At high temperatures, they can resist oxidation and have high strength. Molybdenum rods can be used in the manufacture of electric vacuum devices and electric light source components, as well as high temperature heat emitters and high temperature structural components, electrodes, etc.

Production and processing processes: forming, sintering, pendant forging, machining.


Classification of molybdenum rods


  • Classification by material


Pure molybdenum rods: molybdenum content greater than 99.95%.

High temperature molybdenum rods (molybdenum-lanthanum alloy rods): containing 0.4~1.2% lanthanum, molybdenum content is the residual amount except impurities.

TZM molybdenum rods: 0.4~0.6Ti, 0.07~0.12Zr, 0.01~0.05C.


  • Classification by surface condition


Sintered molybdenum rods: silver grey metallic lustre on the surface.

Wrought molybdenum rods: with a layer of oxide on the surface and a black surface.

Turned molybdenum rods: metallic lustre on the surface, flat and rough.

Brushed molybdenum rods: silvery grey metallic lustre with a smooth surface and small dimensional errors.


Surface oxide removal methods


  1. Molybdenum products have a tendency to oxidise. To remove heavy oxides, treat with strong acids (fluoric acid, nitric acid, hydrochloric acid, etc.) and take care when handling.
  2. For light oxidation use a cleaning agent with abrasives, wipe with a soft cloth or sponge, etc., and then wash with warm water.
  3. Washed molybdenum products will lose their metallic lustre, please take care.



Packaging of molybdenum rods


The molybdenum rods need to be packed individually in PE pearl wool material in a suitable wooden box that must be filled with excess space to prevent vibrations from occurring in transit and damaging the product.


Applications of molybdenum rods

For the manufacture of electric vacuum devices and electric light source parts.

Suitable for processing ion implantation type parts.

Used as high temperature heat generators and high temperature structural parts.

Used as an electrode for furnaces in the glass and refractory fibre industries, working in molten glass at 1300°C with a long life.

Used as an electrode in the rare earth industry.



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