For pressure vessels, heat exchangers and piping in corrosive services, the materials in contact with the process are often required to be high alloys to provide a reliable service life.
For pressure vessels, heat exchangers and piping in corrosive services, the materials in contact with the process are often required to be high alloys to provide a reliable service life. When the design conditions call for thick walls, the use of carbon or low-alloy steel (LAS) cladded or weld overlayed with a high alloy—is often a significant cost savings compared with the use of solid high alloys. Part 1, published in the February issue of Hydrocarbon Processing, discussed the various manufacturing processes for clad plates and pipes, along with factors that affect the decision between using cladding vs. weld overlay. Part 2 will discuss weld procedure qualifications, production testing, t
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