To provide a production line of high temperature resisting alloy furnace pipes and pipe racks for petrochemical industry, in which pieces of equipment in respective processes such as casting, machining, welding, packaging, etc., inspection equipment and monitoring points which are necessary between processes are arranged rationally.

The production line of high temperature resisting alloy furnace pipes and the pipe racks for petrochemical industry includes following processes: a pipeline section is cast into a pipe diameter of 50-300 mm and a pipe length of 3-6 m by a centrifugal casting method, then the loose layer in the internal bore of the pipeline section is machined and removed; a groove is chamfered by a digitally controlled pipe lathe; the pipeline sections of the furnace pipes are welded into long pipes by argon-arc welding; the furnace pipes are manufactured with a welded flanges and joint fittings, and the long pipes of the furnace pipes are welded into the pipe racks. On the line where the furnace pipes and pipe rack products are manufactured via a series of inspections of a chemical composition, ordinary temperature mechanical performance, high temperature mechanical performance, an air pressure test, a hydraulic pressure test, fluorescent penetrant flaw detection, dye penetrant flaw detection, X-ray penetrant flaw detection, appearance check and dimensional check; areas occupied by the pieces of equipment in the respective processes are reduced and production efficiency is improved.