70 CLOCK HOURS
Upon completion of the course, the student should have developed skills for process, pressure and nuclear piping work – as well as for the welding of cryogenic vessels.
Prerequisites: The student must have successfully passed the HIWT Gas Tungsten Arc Welding Basic course. If this course has not been completed, the following prerequisite tests are required:
Pass a visual test of a T-joint on .062-inch stainless steel in the flat position and pass a visual and guided bend test of a square groove weld on 11 gauge carbon steel plate in the flat position using the gas tungsten arc welding process, and pass a written test. Prerequisite testing charge is $50.00.
Course objective: To be able to produce quality single V-groove welds on 2-inch diameter schedule 80 steel pipe in all positions. Quality is determined through visual inspection and mechanical testing. This course also develops skills for Welder, Arc (DOT 810.384-014).
Course content: This course provides the student with a thorough technical understanding of gas tungsten arc welding preparation for welding pipe. It develops the skills necessary to produce quality groove welds on 2-inch schedule 80 steel pipe in the 2G, 5G, and 6G positions.
Testing: To pass this course, the student is required to take one written test. The student also must pass visual and guided bend tests on welds produced in the 2G and 5G positions.