SY/T 6577.1-2003 "Pipeline Steel Pipeline Transportation - Part 1: Railway Transportation" outlines the specifications and requirements for transporting steel pipelines by rail, ensuring safe and efficient logistics for pipeline construction and maintenance. SY/T 6577.2-2003 "Pipeline Steel Pipeline Transportation - Part 2: Inland and Offshore Shipping" provides guidelines for the transportation of steel pipes via inland waterways and maritime routes, addressing the unique challenges associated with these modes of transport.
SY 5037-2000 "Spiral Seam Submerged Arc Welding of Low Pressure Fluid Conveying Pipes" establishes standards for the manufacturing of spiral welded steel pipes used in low-pressure fluid transportation systems, emphasizing quality control and structural integrity. SY/T 5768-1995 "Welded Steel Pipe for General Structure" defines the technical requirements for general-purpose welded steel pipes, suitable for a wide range of structural applications.
SY/T 6423.2-1999 "Non-Destructive Testing Method for Pressure Vessels in Petroleum and Natural Gas Industry - Ultrasonic Testing for Longitudinal Imperfections of Resistance and Induction Welded Steel Pipe" specifies the procedures for ultrasonic testing to detect longitudinal flaws in resistance and induction welded steel pipes, ensuring their reliability in high-pressure environments.
SY/T 6423.3-1999 "Non-Destructive Testing Method for Pressure Vessels in Petroleum and Natural Gas Industry - Ultrasonic Testing of Longitudinal and/or Transverse Imperfections of Submerged Arc Welded Steel Pipe" covers the detection of both longitudinal and transverse defects in submerged arc welded steel pipes using ultrasonic techniques.
SY/T 6423.4-1999 "Non-Destructive Testing Method for Steel Tube in Oil and Gas Industry - Ultrasonic Testing of Layered Imperfections Near the Welded Seam of Welded Steel Pipe" focuses on identifying layered imperfections close to the weld seam, which is critical for maintaining the integrity of welded joints.
SY/T 6423.5-1999 "Non-Destructive Testing Method for Pressure Vessels in Oil and Gas Industry - Ultrasonic Testing of Layered and/or Steel Sheets for Welded Steel Pipes" addresses the inspection of layered structures and steel sheets in welded steel pipes, enhancing safety and performance.
SY/T 6423.6-1999 "Non-Destructive Testing Method for Pressure Vessels of Petroleum and Natural Gas Industry - Seamless and Welding (Except for Submerged Arc Welding) Ultrasonic Testing for Layered Imperfections" covers the non-destructive testing of seamless and other types of welded pipes, excluding submerged arc welding, for layered imperfections.
SY/T 6423.7-1999 "Non-Destructive Testing Method for Pressure Vessels in Oil and Gas Industry - Ultrasonic Testing of Seamless and Welded Pipe Ends" provides guidelines for ultrasonic testing at the ends of seamless and welded pipes, ensuring the quality and reliability of pipe connections. These standards collectively support the safe and reliable operation of oil and gas infrastructure.
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