Refractory Metals at SMF

Refractory Metals at SMF

Carrying on from our last blog post, we thought we would inform you of some more refractory metals we use here at SMFUK.

Tungsten – Tungsten has the highest melting point of these refractory metals at 3422°C. It is very robust and has an extremely high tensile strength; it has the ability to be drawn into very thin wires. Tungsten’s corrosion resistance is also very good.

Applications include; lighting elements, X-ray targets, heating elements, missile components, and due to its high density is used as counter weights.

Niobium – Niobium has a similar structure to Tantalum and is produced in a similar method. It too has a very high melting point of around 2470°C. It has excellent corrosive resistance and has good cold ductility. It is however half as dense as Tantalum.

Applications include; sintering trays and boats, special chemical applications, superconductors, medical components, jet engine parts and is used in the lighting industry.

Zirconium – Zirconium is a lustrous, greyish-white, soft, ductile, and malleable, it is highly resistant to corrosion by alkalis, acids, salt water, and other agents. The melting point of zirconium is approx 1855°C

Applications include; laboratory crucibles, metallurgical furnaces, surgical appliances, missile components and vacuum tube filaments.

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