Molybdenum Crucibles and Custom Sizes
Request a Molybdenum Crucible Quote
Auremo LLC in Buffalo, New York, reviews U.S. requirements for machined, pressed and custom molybdenum crucibles. Send the purity, drawing, dimensions, method, quantity and operating conditions.
Available product forms
- machined crucibles
- pressed and sintered crucibles
- custom dimensions supplied to drawing
Information to include in your request
Please provide the grade or specification, product form, dimensions and tolerances, quantity, destination ZIP code and required certificates. Typical U.S. delivery is 2–3 weeks; final availability and lead time are confirmed with the quotation.
Frequently asked questions
How is the price for machined, pressed and custom molybdenum crucibles confirmed?
Prices are provided on request and depend on the exact grade or specification, dimensions, tolerances, quantity, documentation and freight requirements.
Can non-standard dimensions be requested?
Yes. Include a drawing or dimensional requirements. Availability and manufacturing or sourcing feasibility are confirmed with the quotation.
What is the typical delivery time in the United States?
Typical U.S. delivery is 2–3 weeks after order confirmation. The final lead time and delivery terms are stated in the quotation for the selected material, quantity and destination.
Related materials and products
Molybdenum products · Molybdenum foil · Molybdenum alloy products
Molybdenum crucible specifications for quotation
U.S. searches include molybdenum crucible suppliers and custom molybdenum crucibles. State the required molybdenum purity or grade, machined or pressed construction, outside and inside diameter, height, wall and bottom thickness, drawing and tolerances, operating temperature and atmosphere, quantity, certificate requirements and destination ZIP code.
Technical characteristics
Molybdenum crucible has significant mechanical strength, heat resistance, corrosion resistance in industrial aggressive environment. It possesses low coefficient of thermal expansion and high module of elasticity. These properties allow using it for essential parts of devices. Molybdenum is more lightweight than tungsten almost twice. That is why molybdenum products have a higher strength-to-density ratio (at a temperature of not ore than 1370°С).
Chemical properties
Molybdenum reacts with salt, sulfuric acids only at a temperature of 80−100°C. Nitric, chloronitric acids dissolve molybdenum only at a temperature of 100 °C. It is resistant in cold alkali solutions, but it slowly fractures in hot alkali solutions. Additives of carbon, oxygen, silicon, aluminium, nitrogen, iron, sulfur, calcium and phosphorus that are included in commercial molybdenum significantly increase molybdenum properties. The main part of these additives makes molybdenum more brittle. The most detrimental additive is oxygen. If it constitutes 0.0008−0.004%, easy-melting oxides can lead to sharp increase of material brittleness and decrease of metal flow qualities (especially if there are present carbon and nitric). With increasing of oxygen percentage (more than 0.015%), molybdenum becomes brittle and cannot be pressure treated.
Physical properties of molybdenum
| Description | Identification |
| Temperature of characteristic receiving in °С | 20°С |
| Density [g/cm3] | 10.2 |
| Coefficient of linear thermal expansion α [1/°С] | 4.9x10-6 |
| Melting point | 2620°С |
Specific heat at 20 °C [J/(kg/deg)] |
0.256 |
| Heat conductivity K [V/m*K] | 142 |
| Specific electric resistance R Оhm-mm2/m | 0.054 |
Demerits
Virtually the only one demerit is high self-cost of molybdenum crucible, as long as molybdenum relates to rare-earth elements and it is hardly isolated in a pure state. Besides, it is refractory and hardly processed metal.
Crucible manufacture
Molybdenum crucible is made out of mechanical hot-rolled high-quality plates MCH, MCHWP by method of mechanical processing and pressing.
Application
Molybdenum crucibles are used in melting of rare-earth metals in the capacity of heat-resistant container for needs of metallurgy and mechanical engineering. It is also used for annealing and baking of powder basic material in reducing atmosphere.
