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Heating P91 boiler pipeIn the power piping industry, turnaround time on a boiler pipe project typically is from 20 to 36 weeks. But J.F. Ahern Co. (JFA), Fond du Lac, Wis., a company ranked as one of the Midwest's top 10 mechanical contractors according to the May 2002 Contractor magazine, isn't typical. Neither were...
Publish date: March 13, 2003 |
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Welding chromium-molybdenum steel pipe for power plantsNew power plants are in high demand and several hundred can be expected to be built over the next decade. Chromium-molybdenum steel pipe (P91) is a major construction material in these plants and there are particular methods for welding it properly to insure it will hold up. Preheat and postweld...
Publish date: July 11, 2002 |
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Welders turn to induction heating for preheating, stress relievingThis article discusses using induction heating for preheating and (postheating) stress relief of welds. It focuses on what this technology is, how it works, and how it can be used in an industrial setting. This article also gives several real-life examples of how the technology has been used in...
Publish date: November 15, 2001 |