API 5L Gr.B PSL1 — Chemical Composition & Mechanical Properties
API 5L Gr.B PSL1 is an API specification for seamless line pipe. This sheet summarises its chemical composition limits and minimum mechanical properties. Typical use: oil & gas line pipe.
Chemical composition of API 5L Gr.B PSL1 (weight %)
Other elements and limits: Cu 0.50 max; Nb+V 0.06 max (unless agreed); Nb+V+Ti 0.15 max
Mechanical properties
| Tensile strength, min | 415 MPa |
|---|---|
| Yield strength, min | 245 MPa |
| Elongation, min | Not specified |
| Hardness | Not specified |
Heat treatment
As-rolled, normalized or as agreed (delivery condition per PSL1)
Typical service
Oil & gas line pipe
Reference information compiled from the published standard for convenience. It does not replace the current edition of the governing standard, which takes precedence. Verify critical dimensions and properties before design, purchase or fabrication. Teshi Engineers & Sales Promoters (P) Ltd accepts no liability for errors or omissions.
FAQ
API 5L Gr.B PSL1: common questions
What is the minimum yield strength of API 5L Gr.B PSL1?
245 MPa, with a minimum tensile strength of 415 MPa.
What is the carbon content of API 5L Gr.B PSL1?
0.28 max %.
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