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Cold drawn seamless steel pipe manufacturing
Aug 10, 2018

Compared with hot-rolled seamless steel tubes, the advantage of cold-drawn seamless steel tubes is that they are more precise, usually with an accuracy of about 20 filaments, while the precision of hot-rolled seamless tubes is around 100 filaments. Therefore, cold drawn seamless steel pipe is the first choice for machining manufacturing and parts manufacturing.


Cold drawn seamless steel pipe products can withstand large pressures in practical applications, and the surface precision of the products is high. If you want to obtain a seamless tube of smaller size and better quality, you can use the extrusion method, that is, put the heated tube blank in a closed extrusion cylinder, and the perforated rod moves together with the extrusion rod to make the extrusion The press member is extruded from the smaller die hole. This method can produce steel pipes with smaller diameters.


Due to its excellent performance, the application of cold drawn seamless steel pipe products is also quite extensive. For example, seamless pipes for special purposes include boiler seamless pipes, geological seamless pipes, and petroleum seamless pipes. This type of cold drawn seamless steel pipe product has superior performance and the internal structure of the metal material is relatively dense.

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