API 5L PSL2 X42QS line pipe

API 5L PSL2 X42QS line pipe is designed for conveying gas, water, and oil in the natural gas and oil industries. It is also used in power generation plants, oil refineries, sour service, and off-shore piping projects. It is more important to know the yield strength of API 5L X42 steel pipe suppliers before buying because it may cause an accident if we don't choose proper Yield Strength depends upon application and condition. If API 5L X42 PSL2 is required thermomechanical rolled it should mark M, if PSL2 Material is required Normalizing formed should mark N and if quenched or tempered is required so it should mark Q, that's why L290 material always marked either R or M/N/Q. API 5L PSL2 X42QS line pipe means that X42 pipes are delivered in quenched and tempered condition. The character S means X42 pipe can be used for sour service.
Tensile strength of API 5L X42 steel pipe is higher than API 5L B, it is almost 6600 Psi (45 Mpa) higher compare to Grade B pipe. Grade X42 yield strength is 42100 Psi, 290 Mpa that's why it is known as L290.
API 5L PSL2 X42QS 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 X42QS 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 X42QS line pipe
It 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 X42QS steel pipe  

C max.	Si max.	Mn max.	P max.	S max.	V max.	Nb max.	Ti max.	Other
0.14	0.40	1.35	0.020	0.003	0.05	0.05	0.04	-

Mechanical properties of of API 5L PSL2 X42QS steel pipe

Pipe grade	Yield Strength, Rt0.5 (MPa)	Tensile Strength, Rm(MPa)	Ratio Rt0.5/Rm max.
L290QS or X42QS	290 to 495	415 to 760	0.93

 
API 5L PSL2 X42QS steel pipe acceptable delivery condition
API 5L PSL2 line pipes can be delivered in as-rolled (R), normalizing rolled, normalized formed, normalized or normalized and tempered (N), quenched and tempered (Q), thermomechanical rolled, or thermomechanical formed(M).
 
Available pipe tests for API 5L PSL2 X42QS line pipe
Chemical 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 X42QS steel pipe is available in seamless pipe and welded pipe, mainly used for pipeline transportation systems in the petroleum and natural gas industries. API 5L PSL2 X42QS line pipe is suitable for oil and gas transmission, structural application, and mechanical components.