Material：304、304L、321、316、316L、310S、347H、2205、2507、904Land so on.
Process dimensions: Pipes with the conventional diameters of 19mm, 25mm, 32mm, 38mm are in stock, can be customized as required at the maximum length of 30m, and can be subjected to two processes, i.e. cold-drawing (soft-state industrial pipes after being annealed and pickled) and cold-rolling (internal and external bright-annealed hard-state pipes and soft-state industrial pipes annealed with uniform wall thickness) based on different applications.
Testing: Conduct water pressure, ultrasonic and eddy current testing according to customer requirements.
Product features: Stainless steel boiler tubes, stainless steel heat exchange tubes and stainless steel condenser tubes have the advantages of resistance to high-temperature steam, impact corrosion and ammonia corrosion; scaling resistance, low possibility of staining, and oxidation resistance; long service life, reduced maintenance time and costs; and good tubing processability, direct tube replacement, uniform wall thickness, safety and reliability, and superior overall thermal conductivity to that of copper tubes; thus being ideal heat exchange products for transformation of old units and manufacturing of new equipment.
Production standards: GB3087-1999 “Seamless Steel Pipes for Low and Medium Pressure Boilers”, GB5310-1995 “Seamless Steel Pipes for High-Pressure Boilers”, GB13296-2007 “Stainless Steel Seamless Pipes for Boilers and Heat Exchangers”, ASME SA213 “Seamless Ferritic and Austenitic Alloy Steel Pipes for Tubes for Boilers, Overheaters and Heat Exchangers”.
The company has four hundreds of tons of spot stocks all the year round (Grades of 304, 321, 316L are dominant). Customized cutting is available upon actual demands, with fast delivery. The company passed the ISO9001:2008 Quality Management System Standard in June 2010, and obtained the Special Equipment Manufacturing License of the P.R.C. (pressure pipeline components) with the license number of TS2710O58-2018 in October 2010 after being approved by the General Administration of Quality Supervision. With complete testing facilities such as imported direct-reading optical emission spectrometers, eddy current testing and ultrasonic flaw detection equipment, ensured product quality and self-managed import and export rights, the company’s products exported to Europe, the United States, Japan, the Middle East and Southeast Asian countries and regions, and “Julong” brand stainless steel pipes are deeply praised by domestic and foreign customers.