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JIS G3455 is a type of Japanese National Standard, specifically referring to seamless carbon steel p
The chemical composition of JIS G3455 mainly depends on the specific steel pipe grade. For example, STPG370 is a common pand under this standard. Its chemical composition mainly includes carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S) and other elements.
Seamless steel pipes under the JIS G3455 standard are mainly manufactured through processes such as hot rolling or cold drawing. During the production process, there will also be a series of follow-up treatments, such as heat treatment, pickling, straightening, flaw detection, hydraulic testing, etc., to ensure that the performance and quality of the steel pipe meet standard requirements.
Seamless steel pipes under the JIS G3455 standard have the following characteristics:
1. Medium-high temperature and high-pressure performance: suitable for transporting fluids such as water, gas, and oil in medium-high temperature (350℃~450℃) and high-pressure (9.8MPa~49.0MPa) environments. This kind of steel pipe can withstand higher temperatures and pressures, ensuring stable transmission of fluids.
2. Good mechanical properties: It has high strength and toughness, and can withstand certain impact and vipation. This makes steel pipes more durable and reliable in complex working environments.
3. Excellent corrosion resistance: It has good corrosion resistance and can resist the erosion of water, gas, oil and other fluids, extending the service life of steel pipes.
4. Precise size and shape: The JIS G3455 standard has strict requirements on the size and shape of seamless steel pipes. The diameter, wall thickness, length and other parameters of the steel pipes need to comply with the standard regulations. This makes the connection and installation of steel pipes more convenient and faster, reducing installation difficulty and cost.
5. Good weldability and workability: It has good weldability and workability, and can easily perform welding, cutting, bending and other processing operations. This makes the steel pipe more flexible during the manufacturing and installation process and can adapt to different engineering needs.
JIS G3455 is mainly used to specify the properties and requirements of seamless steel pipes used under specific temperature and pressure conditions. The application scope of JIS G3455 mainly includes the following aspects: Petrochemical industry: In the petrochemical industry, it is used to transport various fluid media, such as oil, natural gas, chemical raw materials, etc. Electric power industry: In the electric power industry, it is used to manufacture piping systems in boilers, superheaters and other equipment. Shipbuilding: In shipbuilding, piping systems for ships. Ships need to transport various fluid media during navigation, such as fuel, fresh water, etc. Other fields: used in other fields, such as construction, machinery manufacturing, etc. In the field of construction, it can be used to manufacture piping systems for pidges, tunnels and other structures; in the field of machinery manufacturing, it can be used to manufacture piping systems for various mechanical equipment.
