When it comes to line pipes, the delivery conditions play a crucial role in ensuring the quality and performance of the pipes. The API 5L specification defines two levels of delivery conditions: PSL1 and PSL2. In this blog post, we will discuss the delivery conditions for PSL1 and PSL2 steel pipes, including the corresponding grades and their specific characteristics.
PSL1 Delivery Conditions:
Rolled, Normalized Rolled, Thermomechanical Rolled, Thermomechanical Formed, Normalized Formed, Normalized, Normalized and Tempered (or as agreed, applicable for SMLS pipes with quench and tempering): This set of delivery conditions applies to PSL1 pipes, specifically for the grade Gr.B.
Rolled, Normalized Rolled, Thermomechanical Rolled, Thermomechanical Formed, Normalized Formed, Normalized, Normalized and Tempered: These delivery conditions are also applicable to PSL1 pipes, but for other grades such as X42, X46, X52, X56, X60, X65, X70, and so on.
PSL2 Delivery Conditions:
Normalized Rolled, Normalized Formed, Normalized, Normalized and Tempered: These delivery conditions are specific to PSL2 pipes and are applicable for grades Gr.BN, X42N, X46N, X52N, and X60N.
Quenched and Tempered: This delivery condition applies to PSL2 pipes with grades Gr.BQ, X42Q, X46Q, X52Q, X56Q, X60Q, X65Q, X70Q, X80Q, X90Q, and X100Q.
Conclusion:
Understanding the delivery conditions of line pipes is essential for ensuring their proper performance and suitability for various applications. The PSL1 and PSL2 delivery conditions outlined in the API 5L specification provide guidance on manufacturing processes and heat treatments to meet specific requirements. By considering these delivery conditions and selecting the appropriate grade, pipeline operators can ensure the safe and efficient operation of their systems.
