A high temperature, high pressure, erosion and corrosion resistant composite gun tube structure comprising: a radially inner first layer (18) having an effective amount of rhenium establishing, a high temperature, erosion and corrosion resistant metal, said first layer being selected from the group consisting of rhenium, tungsten rhenium alloys and molybdenum rhenium alloys, and having an elongation in excess of about 4 percent; a radially outer second layer (20) of structural metal having a tensile strength greater than approximately 100,000 pounds per square inch; and a transition layer (22) forming a metallurgical bond between said first and said second layers, said transition layer including an effective amount of a bond promoting metal to promote bonding between said first and second layers, said transition layer comprising a solid solution of the metals of said first and second layers and said metallurgical bond promoting metal, said high temperature, high pressure, erosion and corrosion resistant composite gun tube structure being capable of repeatedly withstanding internal temperatures in excess of about 2000 degrees Celsius. _______________
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