Stainless steel has good comprehensive performance and good appearance surface characteristics, and is widely used in all walks of life. Similarly, stainless steel pipes are no exception. Stainless steel pipe is a kind of steel with a hollow cross-section, generally divided into stainless steel seamless pipe and welded pipe. Seamless pipes and welded pipes each have advantages in different application fields. When choosing pipe materials, engineering requirements, performance requirements and cost factors need to be taken into account to determine which type of steel pipe is more suitable for a particular project.
There are also some differences in their processing methods and performance, the differences are as follows:
1. The production process is different
Seamless pipe: Seamless pipe is made by heating, perforating and rolling from the billet, so there are no welded joints. This manufacturing method ensures smooth and uniform surfaces inside and outside the pipe, thus providing better fluid flow and corrosion resistance.
Welded pipe: Welded pipe is made by rolling the steel plate into a tube shape, and then by welding the synthetic pipe. This means that the welded pipe has one or more long welds in the direction of length. These welds may introduce weaknesses in some applications that require additional corrosion protection.
2. Performance characteristics
Seamless pipes: Because there are no welded joints, seamless pipes usually have better performance in high temperature, high pressure and corrosive environments. They are suitable for applications requiring high strength and high corrosion resistance, such as oil and gas delivery, chemical and high-pressure boilers.
Welded pipe: The performance of welded pipe usually depends on the quality of welding. While they can be used in many applications, welded joints can become a potential source of corrosion and weakness. However, with proper welding techniques and corrosion protection, the risk of these problems can be reduced.
3. Application field:
Seamless pipes: Due to their high performance characteristics, seamless pipes are often used in applications that require high reliability and safety, such as nuclear power plants, high temperature and pressure vessels, and chemical equipment.
Welded pipe: Welded pipe is suitable for some general engineering and low pressure applications, such as building structures, hydraulic transmission and general piping systems. They are usually more affordable.
Every time the finishing tube is rolled, it must go through the process of solution treatment. Ta ensure that the performance of the steel pipe meets the technical requirements. and to provide guarantee for the post-process processing or use. Bright solution treatment process of ultra-long seamless steel pipe has always been a difficulty in the industry.
Traditional electric furnace equipment is large,covers a large area, has high energy consumption and large gas consumption, so it is difficult for realize bright solution process. After years of hard work and innovative development, the use of current advanced induction heating technology and DSP power supply. Precision control of heating temperature to ensure that the temperature is controlled within t2C,to solve the technical problem of inaccurate induction heating temperature control. The heated steel pipe is cooled by "heat conduction"in a special closed cooling tunnel, which greatly reduces the gas consumption and is more environmentally friendly.
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