JIS G3456 Standard Seamless Steel Pipe Supplier

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 and Material Grades

Standard Grades: JIS G3456 seamless pipes are classified under the JIS G3456 standard.

Material Grades: Mainly include STPT370, STPT410 and STPT480.

Chemical Compositions

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).

Advantages of JIS G3456 Seamless Steel Pipe

JIS G3456 seamless steel pipes 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. These 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.

Applications of JIS G3456 Seamless Steel Pipe

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.