ASTM A53/A53M Type S
Seamless carbon steel pipe
Steel Grades: Gr.A, Gr.B
Commonly used in building and municipal water supply and drainage pipelines, gas pipelines, low-pressure steam and air pipelines, fire protection pipelines, and cable protection conduits; also used as structural pipes for railings, supports, etc. Grade B has slightly higher strength and wider applications. With its excellent pressure-bearing and sealing properties, and support for threaded, flanged, or welded connections, seamless pipe is suitable for medium to low pressure, versatile fluid tran
ASTM A106/A106M
Seamless carbon steel pipe for high temperature
Steel Grades: Gr.A, Gr.B, Gr.C
Widely used in main steam and high-temperature feedwater pipelines in power plants, process pipelines in oil refining and petrochemical plants, boiler heating surface tubes, heat exchanger tubes, and high-temperature fluid transport pipelines; Class B applications are the most common. With excellent high-temperature strength, creep resistance, and weldability, it can operate reliably for extended periods under high temperature and pressure, making it suitable for pipeline systems in the power, p
EN 10216-1
Seamless steel pipes for pressure applications - non-alloy steel
Steel Grades: P195TR1, P195TR2, P235TR1, P235TR2, P265TR1, P265TR2
Commonly used in normal temperature pressure pipelines, water supply and drainage and compressed air pipelines, hydraulic system pipelines, and general industrial piping; TR2 is suitable for more demanding pressure applications due to additional testing. Grades are classified by strength, allowing selection based on pressure and medium. With the good forming, bending, and welding properties of non-alloy steel, it is suitable for general pressure pipeline projects where pressure and temperature r
EN 10216-3
Seamless steel pipes for pressure applications - Alloy fine-grained steel
Steel Grades: P275N, P275NH, P275NL1, P275NL2, P355N, P355NH, P355NL1, P355NL2, P460N, P460NH, P460NL1, P460NL2
Commonly used in high-pressure gas cylinder and pressure equipment connections, pressure vessel fittings, high-strength pressure pipelines, and hydraulic lines for engineering machinery; the NL series is suitable for cryogenic conditions. Grades are classified by strength, allowing for selection based on pressure, temperature, and medium. With its high strength, low-temperature toughness, and good weldability, fine-grained steel is suitable for pipes and fittings requiring high pressure resistan
JIS G3454
Carbon steel pipes for pressure pipelines
Steel Grades: STPG370, STPG410
Widely used in process piping, steam pipelines, water supply and drainage and gas pipelines, and general pressure pipelines in factories and plants, STPG370 is the most commonly used, while STPG410 has slightly higher strength. With the good processing, bending and welding properties of carbon steel, and support for threaded, flanged or welded connections, it is suitable for industrial and utility piping projects with moderate pressure and temperature, where economy and ease of construction are
JIS G3455
Carbon steel pipes for high-pressure pipelines
Steel Grades: STS370, STS410, STS480
Commonly used in high-pressure boiler piping, high-pressure process piping, high-pressure feedwater and steam pipelines, and other systems subjected to high pressure, with strength increasing sequentially among the grades, selectable according to pressure rating. With stricter control over composition and impurities, as well as excellent high-pressure bearing and weldability, it can operate safely under higher pressures, making it suitable for medium- and high-pressure pipeline projects in the p
