MOLYBDENUM ROD
Molybdenum’s properties include a melting point of 2610° C, good electrical conductivity and tensile strength at high temperatures, along with low vapor pressure and a low coefficient of thermal expansion.
Because of such characteristics, the metal finds wide use in fabricating heating elements, fasteners and structural components for high temperature HIP, vacuum and hydrogen atmosphere furnaces. It is also of value in the lighting, electronics and semiconductor industries. Applications of metal rod include lamp supports, power tube components and silicon rectifier mounts.
Elmet produces pure, potassium doped (HCT type), and lanthanated doped molybdenum rod. The potassium doped and the lanthanated doped products are targeted for use in higher temperature applications where ductility is retained after recrystallization for material with smaller cross sections.
Availability
Molybdenum rod is manufactured as random length pieces or cut to customers’ desired lengths in diameters ranging from .020 inches to 1.75 inches. Standard diameter and length tolerances are listed in the accompanying tables. Other, closer tolerances can be quoted on request. In addition, there are three different surface processes or finishes which are provided, depending on the desired end use.
Composition
Pure Molybdenum Products Data Sheet.pdf
HCT Molybdenum Products Data Sheet.pdf
Lanthanated Molybdenum Round Products Data Sheet.pdf
Physical, Mechanical and Chemical Properties of Molybdenum
Molybdenum-Physical & Mechanical Properties.pdf
Molybdenum Chemical Interactions.pdf
Surface Finish
Black – Surface is “as swaged” or “as drawn”; retaining a coating of processing lubricants and oxides.
Cleaned - Surface is chemically cleaned to remove all lubricants and oxides.
Ground - Surface is centerless ground to remove all coating and to achieve precise diameter control.
Molybdenum Rod Standard Diameter Tolerances (inches)
Diameter |
Black/Clean |
Ground |
.020 to .025 |
± .001 |
± .001 |
.025 to .070 |
± .0015 |
± .001 |
.070 to .200 |
± .002 |
± .001 |
.200 to .250 |
± .007 |
± .001 |
.250 to .435 |
± .007 |
± .0015 |
.425 to .750 |
± .010 |
± .003 |
.750 to 1.000 |
± .015 |
± .005 |
1.000 to 1.250 |
± .015 |
± .005 |
1.250 to 1.750 |
± .025 |
± .005 |
Tighter tolerances can be obtained upon request. |
||
Molybdenum Rod Standard Length Tolerances (Inches)
Diameter |
.5" to 12" |
12" to 24" |
> 24" |
.020 to .100 |
± .010 |
± .015 |
± .0625 |
.100 - .500 |
± .015 |
± .015 |
± .0625 |
.500 to 1.000 |
± .015 |
± .030 |
± .0625 |
1.000 to 1.500 |
± .030 |
± .0625 |
± .0625 |
Tighter tolerances can be obtained upon request. |
|||
Molybdenum "Round" Calculator