A method for forming a medical device comprising the steps of: a) forming a rod or tube having a surface and an outer diameter size, said rod or tube is formed of a metal alloy, said metal alloy consisting of primary metals, carbon, oxygen, nitrogen other metals and impurities, at least 99 weight percent of said metal alloy formed of said primary metals, said metal alloy including less than 30ppm nitrogen, said metal alloy having a carbon content of up to 200 ppm, said metal alloy having an oxygen content of up to 100 ppm, said metal alloy having a carbon to oxygen atomic ratio of at least 2:1, said metal alloy having a carbon to oxygen atomic ratio of no more than 50:1, said primary metals being rhenium and molybdenum and one or more of Ti, Y and Zr, and said metal alloy optionally comprising one or more other metals selected from the group consisting of, calcium, chromium, cobalt, copper, gold, iron, lead, magnesium, nickel, niobium, platinum, rare earth metals, silver, tantalum, tungsten, and zinc, wherein the combined content of titanium, yttrium and zirconium in the metal alloy is less than 5 weight percent; wherein the content of rhenium is at least 40 weight percent, wherein the content of molybdenum is at least 40 weight percent; wherein the average grain size of said metal alloy is in the range of 5.2 to 10 ASTM E 112-96; b) reducing said outer diameter size of said rod or tube to a drawn down cross-sectional area by a reducing mechanism, said rod or tube being drawn down at least once to obtain said drawn down cross-sectional area, said outer diameter size being reduced by no more than 25% during each drawing down process; c) cleaning said surface of said rod or tube; d) annealing said rod or tube prior to said rod or tube having said outer diameter size drawn down by up to 60% at an annealing temperature of 1300-1700°C for a period of 2 to 200 minutes, e) optionally cleaning the surface of said rod or tube after the annealing step; and f) using a vacuum environment, an oxygen reducing environment or an inert environment about said rod or tube during the steps of drawing and annealing. a) forming a rod or tube having a surface and an outer diameter size, said rod or tube is formed of a metal alloy, said metal alloy consisting of primary metals, carbon, oxygen, nitrogen other metals and impurities, at least 99 weight percent of said metal alloy formed of said primary metals, said metal alloy including less than 30ppm nitrogen, said metal alloy having a carbon content of up to 200 ppm, said metal alloy having an oxygen content of up to 100 ppm, said metal alloy having a carbon to oxygen atomic ratio of at least 2:1, said metal alloy having a carbon to oxygen atomic ratio of no more than 50:1, said primary metals being rhenium and molybdenum and one or more of Ti, Y and Zr, and said metal alloy optionally comprising one or more other metals selected from the group consisting of, calcium, chromium, cobalt, copper, gold, iron, lead, magnesium, nickel, niobium, platinum, rare earth metals, silver, tantalum, tungsten, and zinc, wherein the combined content of titanium, yttrium and zirconium in the metal alloy is less than 5 weight percent; wherein the content of rhenium is at least 40 weight percent, wherein the content of molybdenum is at least 40 weight percent; wherein the average grain size of said metal alloy is in the range of 5.2 to 10 ASTM E 112-96; b) reducing said outer diameter size of said rod or tube to a drawn down cross-sectional area by a reducing mechanism, said rod or tube being drawn down at least once to obtain said drawn down cross-sectional area, said outer diameter size being reduced by no more than 25% during each drawing down process; c) cleaning said surface of said rod or tube; d) annealing said rod or tube prior to said rod or tube having said outer diameter size drawn down by up to 60% at an annealing temperature of 1300-1700°C for a period of 2 to 200 minutes, e) optionally cleaning the surface of said rod or tube after the annealing step; and f) using a vacuum environment, an oxygen reducing environment or an inert environment about said rod or tube during the steps of drawing and annealing.