# Refractory metals

Tungsten, molybdenum, tantalum, niobium, rhenium and zirconium as sheet, rod, wire, tube, powder and forgings.

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## Melting point, °C

- **Tungsten**: 3,422 °C
- **Rhenium**: 3,186 °C
- **Tantalum**: 3,017 °C
- **Molybdenum**: 2,623 °C
- **Niobium**: 2,477 °C
- **Zirconium**: 1,855 °C

## [Tungsten](https://bimomaterials.com/materials/refractory-metals/tungsten/)

The highest melting point of any metal, the lowest thermal expansion of the refractory metals and high strength at temperature.

- **Density**: 19.25 g/cm³
- **Grades we supply**: Pure W, WLa (lanthanated), WCu (tungsten–copper)
- **Forms**: Sheet, Plate, Rod, Wire, Tube, Powder, Forgings, Machined parts

## [Molybdenum](https://bimomaterials.com/materials/refractory-metals/molybdenum/)

High melting point, excellent thermal conductivity and strength at temperature, at about half the density of tungsten.

- **Density**: 10.28 g/cm³
- **Grades we supply**: Pure Mo, TZM
- **Forms**: Sheet, Plate, Rod, Wire, Tube, Powder, Forgings, Machined parts

## [Tantalum](https://bimomaterials.com/materials/refractory-metals/tantalum/)

Very ductile, with corrosion resistance close to the precious metals.

- **Density**: 16.69 g/cm³
- **Forms**: Sheet, Plate, Rod, Wire, Tube, Powder, Forgings

## [Niobium](https://bimomaterials.com/materials/refractory-metals/niobium/)

Soft, ductile and light for a refractory metal, corrosion resistant and superconducting. It forms stable dielectric layers.

- **Density**: 8.57 g/cm³
- **Forms**: Sheet, Plate, Rod, Wire, Tube, Powder, Forgings

## [Rhenium](https://bimomaterials.com/materials/refractory-metals/rhenium/)

The highest elastic modulus of the refractory metals, 420 GPa, and excellent mechanical properties at high temperature.

- **Density**: 21.02 g/cm³
- **Forms**: Sheet, Rod, Wire, Powder

## [Zirconium](https://bimomaterials.com/materials/refractory-metals/zirconium/)

Strong corrosion resistance in critical service. Weldable and formable.

- **Density**: 6.51 g/cm³
- **Forms**: Sheet, Plate, Rod, Wire, Tube, Powder, Forgings

## [Tungsten carbide](https://bimomaterials.com/materials/refractory-metals/tungsten-carbide/)

An extremely hard ceramic, about four times harder than steel. We make wear parts from it to drawing.

- **Forms**: Inserts, Tips, Dies, Seal rings, Nozzles, Valve parts, Sleeves, Orifices

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