Products & Services
Aalco Refractory Metals has the experience and technical abilities to supply quality solutions to industry where high temperature and corrosion resistance are crucial. Examples of the type of products we supply are shown below but this is by no means a definitive list, if you want an item that’s not here please contact us.
| Finished or Semi Finshed Products |
| Annealing Boats |
Heating Elements |
| Base Plates |
Hot Zones |
| Crucibles |
Nozzles |
| Evaporation Boats |
Radiation Shields |
| Fasteners & Fittings |
Sintering Boats |
| Glass Melting Electrodes |
Sputtering Targets |
| Stirrers |
|
| Wrought Products |
| Foil |
Wire |
| Sheet |
Rod |
| Plate |
Tubular |
Refractory Metals Datasheet
Material Information
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Molybdenum
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With a melting point of 2626°C this is a hard, pure element with excellent thermal conductivity. It's high non corrosive properties make it resistant to corrosion caused by glass and other metals.
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Tantalum
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Tantalum is one of the most corrosion resistant materials available and has a melting point of 2990 Deg C. It's corrosion resistance has singled it out for particular uses in the Chemical Industry where conditions are too severe for any other metal, for many applications Tantalum has proven even more effective than Glass.
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Niobium
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Niobium has approximately 50% of the density of Tantalum with excellent corrosive resistance. It's melting point is 2470°C and has good cold ductility properties.
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Tungsten
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Tungsten combines excellent corrosion resistance, good electrical and thermal conductivity, a low coefficient of expansion and high strength at elevated temperatures. It's melting point is 3422°C, the highest of all refractory metals. On the down side Tungsten is notoriously difficult to fabricate.
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Rhenium
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An extremely expensive and therefore sparingly used material Rhenium has a melting point of over 3000°C and a density of 21.02 g/cc. A very hard material with high corrosion resistance but will slowly tarnish in moist air.