Investigation of K65 (API X80) plate for large-diameter LSAW line pipe

Key Points

• Mechanical properties were assessed through various welding processes, demonstrating critical resistance to defects during production.
• Yield strength of the K65 plate approximately reached 80,000 psi, emphasizing its utility in high-demand applications.
• Assessment utilized mechanical testing and structural analysis to evaluate the plate's performance under operational conditions.
• Findings highlight the importance of K65 for improving the durability and reliability of large-diameter line pipes.