API TR 942-B

Description

This technical report focuses on the materials, fabrication, and repair of austenitic stainless steels and nickel-iron-chromium alloys in high temperature 565-760 ºC (1050-1400 ºF) refinery services. Many of these alloys are subject to embrittlement and cracking after prolonged exposure to these temperatures. Susceptible equipment in the following processing units are addressed: fluid catalytic cracking units, hydrogen/syngas plants, catalytic reformers, cokers, and hydroprocessing units. This report summarizes industry experience and recommends methods to improve reliability and process safety, and increases industry awareness to high temperature embrittlement issues. As a basis of this report, technical literature, industry experience, and published case studies were reviewed. The review included materials of construction, damage mechanisms, and component-specific fabrication and repair issues. The scope of this report includes the following wrought austenitic alloys: Alloys 80