Material Introduction

Rhenium and Rhenium Alloy

Rhenium is a rare, precious and refractory metal. The dense rhenium is in silver white, and rhenium powder is in dark gray. Rhenium has relatively high melting point, reaching 3180°C, which is only lower than that of tungsten among metals; its density is 21.04 g/cm3. Among metals, only platinum, iridium and osmium have higher densities than rhenium.
Rhenium is hexagonal close packed (HCP) and has high solubility in tungsten and molybdenum metals. It can greatly improve the processability, physical and chemical properties and thermoelectric properties of tungsten and molybdenum metals, forming tungsten-rhenium alloy and molybdenum-rhenium alloy with excellent comprehensive properties. The most common tungsten-rhenium alloy has a rhenium content of 3%~25%; the most common molybdenum-rhenium alloy has a rhenium content of 5%~47.5%.