API 5L PSL2 X42Q (L290Q) line pipe has the minimum yield strength of 42100 psi (290MPa), and the minimum tensile strength of 60,200 psi (415MPa). It is produced in welded pipes and seamless pipes. API 5L PSL2 X42Q line pipes are designed for conveying gas, water, and oil in the natural gas and oil industries. Specifications Levels PSL2 contains additional pipe delivery condition chemical composition, mechanical properties, and testing requirements.
API 5L PSL2 X42Q line pipe size
| Standard |
Specification for Line Pipe(ANSI/API specification 5L - 44th Edition, October 1, 2007) |
| Line pipe sizes |
Nominal Pipe Size 1/2" to 48 " O.D. |
| Wall thickness |
SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XS, SCH XXS, All API 5L X42Q Pipe Thickness available |
| Pipe ends |
Plain, Bevel, Screwed, Threaded l245 pipe |
| Manufacturing types |
Seamless / ERW / Welded / Fabricated / CDW |
| Application & uses |
Conveying gas, water, oil, and other liquids |
The technical data of API 5L PSL2 X42Q line pipeIt is given based on API Spec 5L-2007 version. Below are the chemical composition and mechanical properties of seamless type and welded type API 5L PSL2 line pipe.
Chemical composition(a, %) of API 5L PSL2 X42Q steel pipe
| C max. |
Si max. |
Mn max. |
P max. |
S max. |
V max. |
Nb max. |
Ti max. |
Other |
| 0.18 |
0.45 |
1.40 |
0.025 |
0.015 |
0.05 |
0.05 |
0.04 |
e |
e, Unless otherwise agreed, Cu≤0.50, Ni≤0.30; Cr≤0.30; and Mo≤0.15;
Mechanical properties of of API 5L PSL2 X42Q steel pipe
| Pipe grade |
Yield Strength, Rt0.5 (MPa) |
Tensile Strength, Rm(MPa) |
Ratio Rt0.5/Rm max. |
| L290Q or X42Q |
290 to 495 |
415 to 760 |
0.93 |
API 5L PSL2 X42Q steel pipe delivery condition API 5L PSL2 X42Q line pipes are delivered in quenched and tempered (Q) condition.
Available pipe tests for API 5L PSL2 X42Q line pipeChemical composition analysis(product analysis)
Tensile tests
Hydro-static test
Bend test
Flattening test
CVN impact test for PSL2 line pipe
MT magnetic particle testing
NDT non-destructive testing
API 5L PSL2 X42Q (L290Q) pipelines are economically best solution in the field of pipes. They are mainly used to provide the solution for the transportation system of natural gases, petroleum oil, water and many other expensive materials.
