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Producing Large-Diameter Seamless P91 Steel Pipes via Hot Expansion

Date:2024-08-13

hot expansion is a commonly used method in the production of seamless steel pipes, offering several advantages for large-diameter p91 pipes. this technique ensures high-quality, stable performance that meets complex operational requirements. it also enhances production efficiency, reduces costs, and allows for customization according to client specifications, such as different diameters, wall thicknesses, and lengths.


the production process begins with selecting high-quality raw materials, like premium steel plate, high precision roller, which are pre-treated, heated, the heating temperature and time to be adjusted according to different steel pipe specifications and materials, and rapidly cooled to achieve the desired properties. the pipe's diameter is then expanded to the required size with controlled parameters, followed by quality inspection and packaging.


p91 large-diameter seamless steel pipes are known for their excellent high-temperature, corrosion, and wear resistance, making them ideal for use in industries such as petroleum, chemical, power, construction, and environmental protection. their high quality, performance, and reliability significantly improve equipment safety and longevity while reducing maintenance costs and frequency. the hot expansion method's ability to offer customized solutions further enhances the market potential and application value of p91 pipes.

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