GB/T 3639-2009
AbolishedSeamless cold-drawn or cold-rolled steel tubes for precision applications
冷拔或冷轧精密无缝钢管
Application Summary AI generated
This standard specifies the dimensions, technical requirements, and testing methods for seamless steel tubes produced through cold-drawing or cold-rolling processes, ensuring high dimensional accuracy and surface quality. It is primarily applied in precision engineering sectors such as automotive manufacturing, hydraulic systems, and mechanical components where tight tolerances and reliable performance are critical. The standard is used by steel producers and quality inspectors to certify tubes for applications like piston rods, shock absorbers, and precision shafts.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.