Alloyed with tungsten in 3%, 5%,25%, 26% content, rhenium make tungsten become more ductile and machineable. ABOUT ... temperatureGood thermal shock resistance Alloyed with tungsten in 3%, 5%,25%, 26% content, rhenium make tungsten become more ductile and machineable.With ... , φ0.35, φ0.5 Sheathed Tungsten-Rhenium Thermocouple WRe3/25,WRe5/26 Sheath OD:φ2-φ20 Tungsten-Rhenium RodWRe3,WRe5,WRe25,WRe26 ...