JIS G3461 is a seamless steel pipe standard under the Japanese JIS standard. This steel pipe is mainly used for low and medium -voltage environments. In the field of boilers and heat exchangers, JIS G3461 seamless steel pipe has been widely used for its excellent performance
Under the JIS G3461 standard, different types of steel pipes have different chemical component requirements. The specific: The chemical composition requirements of the STB340 are: C content C is not greater than 0.18%, the SI content is not more than 0.35%, the MN content is 0.30%~ 0.60%, the P content is not greater than 0.035%, and the S content is not greater than 0.035%. The chemical component requirements of STB410 are: C content C is not greater than 0.32%, the SI content is not greater than 0.35%, the MN content is 0.30%~ 0.80%, the P content is not greater than 0.035%, and the S content is not greater than 0.035%.
The chemical composition requirements of STB510 are: C content C is not greater than 0.25%, the SI content is not greater than 0.35%, the MN content is 1.00%to 1.50%, the P content is not greater than 0.035%, and the S content is not greater than 0.035%.
The production method of JIS G3461 seamless steel pipes mainly involves the following key steps: raw materials preparation, perforation and hot rolling, hot treatment, refinement and inspection, packaging and transportation.
JIS G3461 seamless steel pipes have a series of significant characteristics, which are widely used in the fields of boilers, heat exchangers. The following is the main feature of JIS G3461 seamless steel pipe:
1. Excellent high temperature resistance: It can maintain stability in high temperature environments, and it is not easy to deform or damage.
2. Good corrosion resistance: The chemical composition of the steel pipe is accurately controlled, so that it has good corrosion resistance and can resist the erosion of various corrosive media.
3. High -strength and excellent toughness: It has excellent mechanical properties, including high strength and excellent toughness, can withstand greater pressure and impact, and ensure the long -term stable operation of the equipment.
4. Accurate size and smooth surface: The steel pipe adopts advanced production technology to ensure that the size of the steel pipe is accurate, the surface is smooth, and it can meet various complex installation and use requirements.
The seamless steel pipes under the standard of JIS G3461 are mainly suitable for boiler and heat exchangers inside and outside the pipe. Specifically, the heating surface tube used to build a boiler, such as overheating, heating device, and coal province can withstand high -temperature and high -pressure steam environments to ensure the safe and efficient operation of the boiler. At the same time, in the field of thermal exchangers, these steel pipes can efficiently transfer heat and achieve effective use of thermal energy. It is used in equipment and systems that need to withstand high temperature and high pressure and corrosion -resistant environment, such as oil, chemical, shipbuilding, container, automobiles, urban light rails, large power stations and other fields.
