JIS G3456—a widely recognized Japanese industrial standard, commonly referenced as jis g3456—specifies requirements for carbon and alloy steel seamless pipes used in high-temperature and high-pressure service, such as pipelines and heat exchangers. It includes grades like STPT370, STPT410, and STPT480, designed for strength, durability, and resistance to oxidation and scaling. These pipes are manufactured through hot or cold forming processes, ensuring precise dimensions and excellent surface quality.
JIS G3456 pipes undergo rigorous testing for mechanical properties, chemical composition, and hydrostatic performance. They are widely used in power plants, refineries, and industrial systems, providing reliable performance under demanding conditions. Adhering to the jis g 3456 standard ensures that these pipes meet stringent criteria for quality and reliability, making them essential for critical applications in various industrial sectors.
JIS G3456 is a Japanese standard for carbon steel pipes for high-temperature service. The details of its standard grades, material grades, chemical compositions and mechanical properties are as follows:
Standard Grades: JIS G3456 seamless pipes are classified under the JIS G3456 standard.
Material Grades: Mainly include STPT370, STPT410 and STPT480.
STPT370: Carbon (C) content is ≤0.25%, Silicon (Si) content is 0.10 - 0.35%, Manganese (Mn) content is 0.30 - 0.90%, Phosphorus (P) content is ≤0.035% and Sulfur (S) content is ≤0.035%.
STPT410: Carbon (C) content is ≤0.30%, Silicon (Si) content is 0.10 - 0.35%, Manganese (Mn) content is 0.30 - 1.00%, Phosphorus (P) content is ≤0.035% and Sulfur (S) content is ≤0.035%.
STPT480: Carbon (C) content is ≤0.33%, Silicon (Si) content is 0.10 - 0.35%, Manganese (Mn) content is 0.30 - 1.00%, Phosphorus (P) content is ≤0.035% and Sulfur (S) content is ≤0.035%.
Mechanical Properties
STPT370: The yield strength is ≥216 MPa, the tensile strength is ≥373 MPa, and the elongation is ≥30% (longitudinal), ≥25% (transverse).
STPT410: The yield strength is ≥245 MPa, the tensile strength is ≥412 MPa, and the elongation is ≥25% (longitudinal), ≥20% (transverse).
STPT480: The yield strength is ≥275 MPa, the tensile strength is ≥481 MPa, and the elongation is ≥25% (longitudinal), ≥20% (transverse).
JIS G3456 seamless steel pipes, also compliant with jis g 3456 standard, are designed for high-temperature and high-pressure applications, offering excellent strength and durability. They are available in various grades (STPT370, STPT410, STPT480) to meet different industrial needs, with every jis g3456 pipe manufactured from killed steel, ensuring high purity and uniformity. These jis g 3456 pipes are manufactured from killed steel, ensuring high purity and uniformity. They also exhibit good weldability and formability, making them suitable for a wide range of fabrication processes.
JIS G3456 seamless steel pipes are extensively used in industries requiring high-temperature and high-pressure performance. They are commonly used in power generation for boiler and turbine systems, in chemical processing for transporting high-temperature fluids and gases, and in petrochemical industries for refineries and processing plants. These pipes are also used in thermal power plants, paper mills, and other applications where reliable performance under extreme conditions is crucial. Adhering to the jis g3456 standard ensures that these pipes meet the necessary criteria for strength, durability, and resistance to high temperatures and pressures, making them indispensable in various industrial applications.