Why are the Pipes for Industrial Boilers All Seamless Steel Tube?

 　　Nowadays, welded steel pipes are also used in medium and low pressure boilers, thanks to the rapid improvement of welding technology. For example, the joint microstructure of the pipe butt butt friction welded steel pipe is the same, and after the pipe joints are remelted through the butt joint and the corner joint, it is difficult to observe the clump joint traces with the naked eye. The microstructure of its parts has been The clumps are exactly the same.

　　Common problems in the surface treatment and product processing of seamless steel pipes for high-pressure boilers:

　　1. The surface of seamless steel pipes for high-pressure boilers is inconsistent: only the welds are pickled and passivated, resulting in uneven surfaces and affecting appearance.

　　2. The scratches on seamless steel pipes for high-pressure boilers are difficult to remove: the whole is pickled and passivated, and the various scratches produced during the processing cannot be removed, and the scratches and welding spatters that adhere to the stainless steel surface cannot be removed. Impurities such as carbon steel, splash, etc. cause chemical corrosion or electrochemical corrosion to rust in the presence of corrosive media.

　　3. Welding seam defects: Welding seam defects are more serious, and manual and mechanical grinding treatment methods are used to make up. The grinding marks produced will cause uneven surface and affect appearance.

　　http://www.xysteelpipe.com/info/Why-are-the-Pipes-for-Industrial-Boilers-All-Seamless-Steel-Tube-1925-1.htm

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