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Shandong Precision Special Steel Works Shares Precision Seamless Pipe Knowledge
Shandong Precision Special Steel Co., Ltd. is a leading manufacturer specializing in high-precision steel tubes, produced through either cold drawing or hot rolling processes. These precision steel pipes are characterized by their smooth inner and outer surfaces, free from oxide layers, making them ideal for applications requiring high performance and reliability. They are capable of withstanding high pressure without leakage, maintaining dimensional accuracy, and exhibiting excellent surface finish. Additionally, they resist deformation during cold bending, avoid flaring, and are less prone to cracks or flattening, which makes them highly suitable for use in pneumatic and hydraulic systems such as cylinders.
Precision steel tubes can be either seamless or welded, depending on the application requirements. The chemical composition typically includes carbon (C), silicon (Si), manganese (Mn), sulfur (S), phosphorus (P), and chromium (Cr). Common materials used for precision seamless tubes include grades 10#, 20#, 35#, and 45#. However, the range of available materials is quite extensive, as long as the steel is not excessively hard, it can be processed into precision tubes according to specific needs.
The production of precision seamless pipes generally involves a cold rolling process. The manufacturing steps include: starting with round steel, followed by punching, acid pickling to remove impurities, then cold rolling to achieve the desired shape and size. After that, the ends are cut (sawing head), and the pipes are bundled. Further pickling and cold rolling may be performed if necessary, followed by another sawing head operation and baling for packaging and shipping.
This advanced manufacturing technique ensures consistent quality, tight tolerances, and superior mechanical properties, making these tubes widely used in industries such as automotive, aerospace, and industrial machinery.