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Medium pressure boiler tube: Medium pressure boilers operate at medium pressure, typically within the range of 2.5 to 6.0 MPa. They are used in some industrial applications to generate steam, such as in the chemical industry.High pressure boiler tubes: High pressure boiler tubes are designed to operate at relatively high pressures, typically in the range of 6.0 to 13.0 MPa or higher. These boilers are typically used in large power plants and industrial processes to generate high-temperature and high-pressure steam.

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Secondly, in terms of physical properties, precision steel pipes generally have higher strength, toughness, and wear resistance. This is due to the refinement of grain size during the cold working process of precision steel pipes, which enables them to have better tensile, compressive, and impact resistance under load. However, ordinary steel pipes have relatively low physical properties and are not suitable for situations with high requirements for strength and hardness.In addition, precision steel pipes have high dimensional accuracy and appearance quality. Due to the special process of cold processing, the outer diameter, inner diameter, and wall thickness of precision steel pipes can be controlled within a small tolerance range, ensuring their dimensional stability and consistency. However, ordinary steel pipes have relatively large dimensional tolerances in processes such as hot rolling, hot expansion, or welding, making it difficult to meet high precision requirements.

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Precision seamless steel pipe is a high-precision and high-quality seamless steel pipe with the following main advantages:1. High dimensional accuracy: The production process requirements for precision seamless steel pipes are very strict, with strict control requirements for the thickness, outer diameter, inner diameter and other dimensional parameters of the pipe wall. Therefore, their dimensional accuracy is high and can meet various needs.2. Good surface finish: Precision seamless steel pipes undergo multiple processes such as acid washing, cold rolling, and cold drawing during the production process, greatly improving the surface finish, making the surface smoother, reducing friction resistance, and improving fluid transportation efficiency.

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Cold drawing or cold rolling: The perforated tube blank is gradually reduced in outer diameter and wall thickness through a cold drawing or cold rolling machine to improve dimensional accuracy.Annealing: Annealing of pipelines at high temperatures to eliminate residual stress, improve mechanical properties, and enhance pipeline toughness.Pickling or pickling oil grinding: Conduct pickling treatment on pipelines to remove oxides, or perform pickling oil grinding to improve surface quality.Cold drawing or cold drawing: Use a cold drawing machine or cold drawing machine to stretch the pipeline, further reducing size and improving surface quality.

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High pressure boiler tubes require the selection of materials suitable for high-temperature, high-pressure, and corrosive environments to ensure their safety and reliability. The following are some common material options for high-pressure boiler tubes:Carbon Steel: Low or medium carbon steel is widely used in some low-pressure and medium pressure boilers. The main advantages of carbon steel pipes are low cost and easy processing, but they may undergo corrosion and oxidation in high temperature and high pressure environments.