... thermal shock resistance Alloyed with tungsten in 3%, 5%,25%, 26% content, rhenium make tungsten become more ductile ... and space applications. Tungsten-Rhenium Thermocouple WireWRe3/25,WRe5/26 φ0.1, φ0.2, φ0.25, φ0.3, φ0.35, ... φ0.5 Sheathed Tungsten-Rhenium Thermocouple WRe3/25,WRe5/26 Sheath OD:φ2-φ20 Tungsten-Rhenium RodWRe3,WRe5 ... min.×(10-350)×600 max. Tungsten Rhenium thermocouple wire