1. The general boiler seamless pipe is primarily used in the manufacturing of waterwall tubes, boiling water tubes, and superheated steam tubes for locomotive boilers, as well as large and small flue pipes and arch brick tubes. These pipes are essential components in low and medium pressure boiler systems, ensuring efficient heat transfer and structural integrity.
2. High-pressure boiler seamless pipes are specifically designed for use in high-pressure and ultra-high-pressure boilers. They are commonly used to produce superheater tubes, reheater tubes, air ducts, and main steam tubes, which must withstand extreme temperatures and pressures while maintaining reliability and safety over long operating periods.
3. According to GB3087-82 "Seamless Steel Tubes for Low and Medium Pressure Boilers" and GB5310-95 "Seamless Steel Tubes for High Pressure Boilers," the surface quality of steel tubes must meet strict standards. Any cracks, folds, wrinkles, scabs, delaminations, or hairline defects on both the inner and outer surfaces are strictly prohibited. If such defects are found, they must be entirely removed. The depth of removal should not exceed the negative tolerance of the nominal wall thickness, and the remaining wall thickness at the cleaned area must still meet the minimum allowable thickness requirements to ensure structural soundness.
Boiler seamless pipe weight calculation method: (Outer Diameter - Wall Thickness) × Wall Thickness × 0.02466. This formula provides a quick and accurate estimation of the weight per meter of the pipe, which is useful for design, transportation, and cost estimation purposes.
In addition to their mechanical properties, these pipes are also evaluated for dimensional accuracy, chemical composition, and corrosion resistance, depending on the specific application. Proper selection and handling of these pipes are crucial to the performance and longevity of boiler systems. Whether in power plants, industrial facilities, or locomotive applications, the quality and reliability of seamless boiler pipes play a vital role in overall system efficiency and safety.
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