HCT Molybdenum

HCT Molybdenum (POTASSIUM DOPED)

HCT Molybdenum:  Elmet is a leading global provider of high quality and high purity potassium doped (HCT) molybdenum rod and wire products and the only US owned and operated producer.  HCT Molybdenum is used where retention of low temperature ductility after exposure to high temperatures is required. HCT is particularly applicable to resistance heating elements, lamp filament supports, sintering trays and electronic tube components. Recrystallized HCT molybdenum develops interlocked, elongated grain structures which remain relatively ductile at room temperature and below.

Pure molybdenum is invariably embrittled after use at high temperatures. This can result in unanticipated failures, especially where vibration or mechanical handling occurs. The loss of ductility is a direct result of the development of equiaxed grain structures resulting from the recrystallization process.  In contrast, recrystallized HCT moly develops interlocked, elongated grain structures which remain relatively ductile at room temperature and below.

This structure is achieved through small, controlled alloy additions and thermomechanical processing. The content of the residual alloy remains less than 200ppm. Ductility characteristics are dependent of the material form and physical dimensional parameters. Typically, thinner cross-sections exhibit optimum properties. For manufacturing purposes, the density, heat capacity, thermal expansion, and modulus of HCT are the same as pure molybdenum. The cold electrical resistivity is about 5% higher than the unalloyed material.

We offer a full range of molybdenum HCT rod, wire and sheet sizes.  Please contact our customer service team to discuss your application.

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HCT Molybdenum (Potassium Doped Mo) Rod Products:

Elmet’’s Potassium Doped HCT Molybdenum Sheet Products:

Material from .005 inches to .090 inches in thickness is classified as molybdenum HCT sheet.   Other sizes and tolerances are available including wider sheet plate and sheet products from our rolling mill.

HCT Molybdenum Resources:

HCT Molybdenum Products Data Sheet 2023

Lanthanated Molybdenum Plate 2017

Molybdenum Physical Mechanical Properties 2017

Molybdenum Chemical Interactions 2017

Molybdenum Rod, Wire, Plate, Sheet Product Data Sheet 2017

About our HCT Molybdenum process:

Companies throughout the world depend on Elmet Technologies’ expertise in powder metallurgy.  Our advanced powder processing produces pure tungsten and molybdenum metal powders and specific metal alloys. At Elmet, our process is fully integrated.  We start with the raw material which is purified to tungsten and molybdenum metal powder through a chemical reduction process.  The powder is then formed into semi-finished products through a series of advanced mixing, pressing, deformation and heating technologies.  The finished products are carefully manufactured to customer specifications utilizing our state-of-the-art machining and fabrication techniques. By selectively influencing aspects of the metallurgical process, we can change characteristics like porosity, strength, and temperature resistance.
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