There is no chemistry data available for this grade.

Principal Design Features		Molybdenum is a metallic element, like iron or aluminum. While most commonly employed as an alloying element, it is also used in its pure form. It possesses excellent high temperature strength, has a very high melting point (4730 F) and is a good thermal and electrical conductor. Additionally, moly has a relatively low coefficient of thermal expansion.

Applications		Moly is commonly employed in high temperature applications such as heating elements in furnaces, filament supports in electric lamps, heat shields and in hearth trays, plates and racks.

Machinability		Machinists describe machining moly as similar to machining cast iron. High speed or carbide tools have been successfully employed with a general preference towards carbide. Moly is a very abrasive material and rigid set-ups and sharp tools are key. The alloy can have a tendency to "tear" if positive feeds are not used.

Forming		Moly can be successfully formed, but a word of caution is recommended. The material will form most efficiently when bending transverse or against its grain or rolling direction. Cracking is a common and costly problem. Heating the workpiece prior to forming can minimize these problems

Welding		Welding moly can best be performed in an argon or helium atmosphere. Best welds are obtained using electron beam methods. Resistance methods are possible, however the resulting weld "nuggets" will be hard and brittle and the weld itself will not be as strong as could be obtained with EB.

Annealing		Recrystallization temperature is dependent upon prior working and condition, however the average required temp is in the range of 2100 F. Stress relieving temperature is 1600 - 1800 F.

Physical Data : [top]

Density (lb / cu. in.)	0.37
Electrical Resistivity (microhm-cm (at 68 Deg F))	31
Melting Point (Deg F)	4730
Thermal Conductivity	84.5
Mean Coeff Thermal Expansion	2.8

There is no Mechnical data available for this grade.

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