Metals-Piping just finished the production of a batch of Inconel 600 welding neck flanges for a fertilizer plant in Bintulu, Malaysia. The Texaco Coal Gasification Process (TCGP) is applied at this plant in which coal-water slurry is utilized to produce raw gas for synthetic ammonia. Due to the high-temperature and high-pressure conditions, Inconel 600 (ASTM B564 UNS N06600) is selected as the material of all welding neck flanges sized from 3″ to 12″.