Where it fits
Transmission and gathering lines where higher strength than X52 is required while preserving controlled PSL2 chemistry, toughness and weldability.
API 5L · PSL2 · seamless
API 5L X60 PSL2 seamless line pipe
L415 / X60 is a grade-specific reference for engineering selection and RFQ preparation. HONGFENG verifies grade suffix, dimensions, connection, test requirements and documents for each order.
Updated 13 November 2026 · HEBEI HONGFENG IMPORT & EXPORT CO.,LTD
Mechanical reference
How to read L415 / X60
PSL2 seamless; X60N or X60Q must be specified with CVN temperature and inspection scope.
What not to assume
X60 L415 has a defined maximum yield and tensile, not only a minimum. A supplier quotation that lists only “yield 415 MPa” is incomplete for PSL2.
Mechanical snapshotReference values; project and MTC govern
| Property | Reference |
|---|---|
| Yield strength | 415–565 MPa |
| Tensile strength range | 520–760 MPa |
| Max. Rt0.5/Rm | 0.93 |
| Delivery condition | PSL2 seamless; X60N or X60Q must be specified with CVN temperature and inspection scope. |
PSL2 seamless chemistry reference
| Condition | C % | Si % | Mn % | P % | S % | CEIIW | CEpcm |
|---|---|---|---|---|---|---|---|
| X60 (N / Q) | 0.24 / 0.18 | 0.45 | 1.40 / 1.70 | 0.025 | 0.015 | As agreed / 0.43 | As agreed / 0.25 |
The values are maximum mass fractions for seamless pipe at t ≤25 mm. Element footnotes, carbon-to-manganese adjustment, CE rules and t >20 mm agreements remain applicable.
CVN
X60 PSL2 minimum full-size Charpy energy
The applicable value depends on outside diameter and grade band. The order must also state test temperature, specimen orientation, specimen size and any HAZ requirements.
| OD mm | ≤X60 | >X60–≤X65 | >X65–≤X70 | >X70–≤X80 | >X80–≤X90 | >X90–≤X100 | >X100–≤X120 |
|---|---|---|---|---|---|---|---|
| ≤508 | 27 | 27 | 27 | 40 | 40 | 40 | 40 |
| >508–≤762 | 27 | 27 | 27 | 27 | 40 | 40 | 40 |
| >762–≤914 | 40 | 40 | 40 | 40 | 40 | 54 | 54 |
| >914–≤1219 | 40 | 40 | 40 | 40 | 40 | 54 | 68 |
| >1219–≤1422 | 40 | 54 | 54 | 54 | 54 | 68 | 81 |
| >1422–≤2134 | 40 | 54 | 68 | 68 | 81 | 95 | 108 |
X60: 27 / 27 / 40 / 40 / 40 / 40 J across the OD bands shown above.
RFQ data
What to send for X60
- Standard edition, grade and delivery suffix
- Product form and outside diameter
- Wall thickness or weight and length range
- Connection, coupling, thread or end preparation
- CVN temperature, energy or project testing
- Quantity, inspection scope, destination and date
Send the grade, dimensions and test requirements
Availability, delivery condition, test regime and documents are confirmed for the exact order. The signed contract and final MTC govern acceptance.
Related grade pages
Grade-specific technical pages
FAQ
L415 / X60
What are API 5L X60 PSL2 mechanical limits?
The pipe body reference is 415–565 MPa yield and 520–760 MPa tensile, with a maximum yield-to-tensile ratio of 0.93.
Does X60 PSL2 require impact testing?
PSL2 has defined CVN requirements that vary with grade and outside diameter. The purchase order must also state test temperature, specimen orientation and any supplementary fracture or HAZ requirements.
What chemistry differs between X60N and X60Q?
The referenced seamless table shows maximum C 0.24%, Si 0.45% and Mn 1.40% for X60N, compared with C 0.18%, Si 0.45% and Mn 1.70% for X60Q. Carbon equivalent follows the applicable condition and footnotes.