ASTM A671
Low-temperature electrofusion welded steel pipe
Steel Grades: Gr.CC60, Gr.CC65, Gr.CC70, Gr.CM65, Gr.CM70, Gr.CJ60, Gr.CJ65, Gr.CJ70
It is commonly used in the manufacture of large-diameter water pipelines, petrochemical process pipelines, and inlet and outlet pipes of cryogenic storage tanks. Electrofusion welding facilitates the manufacture of large-diameter steel pipes, and the combination with killed steel plates ensures good toughness. It is suitable for pressure pipelines and large-diameter connections and piping systems that transport fluids under normal pressure to cryogenic conditions, and is widely used in the press
ASTM A672
Medium and high temperature electrofusion welded steel pipes
Steel Grades: Gr.CC60, Gr.CC65, Gr.CC70, Gr.CM65, Gr.CM70, Gr.CJ60, Gr.CJ65, Gr.CJ70
Widely used in the manufacture of large-diameter main steam pipes for power plants, high-temperature pipelines in petrochemical plants, and high-temperature process pipes in chemical plants. Electrofusion welding facilitates the manufacture of large-diameter, thick-walled steel pipes. The steel plates maintain stable strength at medium and high temperatures, making them suitable for large-diameter pressure pipelines, headers, and high-temperature process piping systems that transport high-temper
ASTM A691
High-temperature and high-pressure electrofusion welded alloy steel pipes
Steel Grades: Gr.CM-65, Gr.CM-70, Gr.1-1/4Cr-1/2Mo, Gr.2-1/4Cr-1Mo, Gr.5Cr-1/2Mo, Gr.9Cr-1Mo-V
Widely used in the manufacture of high-temperature and high-pressure pipelines for power plants, oil refining and hydrogenation units, and petrochemical high-temperature and high-pressure process pipes. Chromium-molybdenum alloying combined with electrofusion welding for large-diameter forming provides excellent high-temperature strength, creep resistance, and hydrogen resistance, making it suitable for pipelines, headers, and piping systems operating under harsh high-temperature and high-pressu
EN 10217-2
Pressure welded steel pipe - high temperature performance steel
Steel Grades: P235GH, P265GH, 16Mo3, 13CrMo4-5, 10CrMo9-10
Commonly used in steam pipelines, high-temperature process pipelines, and boiler pipelines, as well as in the manufacture of heat exchanger shells and pressure-bearing components. From non-alloy to chromium-molybdenum series, selection is based on temperature. Welded and formed, it possesses good high-temperature strength and creep resistance, making it suitable for pressure-bearing pipelines, piping systems, and components under high-temperature and high-pressure conditions. It is a commonly us
EN 10217-3
Pressure welded steel pipe - alloy fine-grained steel
Steel Grades: P275N, P275NH, P355N, P355NH, P460N, P460NH
It is commonly used in the manufacture of high-pressure gas cylinders, pressure vessel shells, and high-strength pressure-bearing pipelines, as well as various piping systems requiring high strength. The fine-grained structure provides high strength, good toughness, and weldability, making it suitable for welded pressure-bearing pipe fittings, cylinders, and nozzles that require both strength and toughness to operate under high pressure, while also meeting the needs of welding manufacturing and
EN 10217-4
Pressure welded steel pipe - Low temperature performance steel
Steel Grades: P265GH, 16Mo3, P355N, P355NL1, P355NL2
Widely used in LNG pipelines, cryogenic storage tank connections, and ethylene plants, as well as in the manufacture of refrigeration system pipelines and cryogenic connections. The listed grades possess reliable cryogenic toughness, are easy to weld and form into pipes, and are suitable for pressure-bearing pipelines and piping systems that can effectively resist brittle fracture under cryogenic conditions. They are widely used in the pressure vessel and pressure piping industry.
