API 5L PSL1|PSL2 Line Pipe

     

API 5L PSL1|PSL2 line pipe Specification:
Scope: API 5L is generally refers to the standards of pipeline steel, include pipeline pipe and pipeline steel plate, pipeline steel pipe is used to extract oil, steam, water on the ground to the oil and gas industry enterprises. According to manufacture method, pipeline steel pipes are produced into seamless pipe and welded steel pipe, commonly used pipeline line types are welded steel tube with spiral submerged arc welding pipe (SSAW), straight seam submerged arc welding pipe (LSAW), electric resistance welding (ERW), seamless steel pipe is usually chosen where pipe diameter is less than 152 mm.
The standard API 5 L steel pipe steel grade has many levels: GR. B, X42, X46 and X52, X56, X60, X70 and X80, now the big steel mills and factories have developed steel grade for X100 and X120 measures of pipeline steel. Steel pipe of higher steel grade, relatively have higher requirement of raw materials and production, the carbon equivalent between different grade of steel is strictly controlled.
API 5L PSL1             API 5L PSL2
Differences between API 5L PSL1 and API 5L PSL2
PSL refers to product specification level made for API 5L standard. Pipe specification level is divided into PSL1 and PSL2 for line pipe standard, line pipes of PSL1 and PSL2 have different levels of quality requirement.

• PSL2 shows higher performance than PSL1 as it has stricter inspection requirements, chemical composition and mechanical performance requirements.
• API 5L PSL1 production does not require for impact performance, for API 5L PSL2, all pipes requires for satisfy the following data except x80 grade, full size 0 ℃ average Akv: longitudinal p j, 41 lateral acuity 27 j. Average grade X80 steel, full size 0 ℃ Akv: longitudinal 101 j, or lateral acuity 68 j.
• Line pipe production should include the hydraulic pressure test, and standards are not allowed to nondestructive generation of hydraulic pressure, nondestructive inspection is not required for PSL1, while each API 5L PSL2 pipe shall go through nondestructive examination one by one.

API 5L PSL1 Mechanical property:API 5L PSL2 Chemical composition:API 5L PSL2 Mechanical property:
API 5L PSL1/PSL2 Chemical composition:
               StandardGradeChemical Composition (%)API 5L PSL1API 5L PSL2

C	Mn	P	S
B	≤0.28	≤1.20	≤0.030	≤0.030
X42	≤0.28	≤1.30	≤0.030	≤0.030
X46	≤0.28	≤1.40	≤0.030	≤0.030
X52	≤0.28	≤1.40	≤0.030	≤0.030
B	≤0.24	≤1.20	≤0.025	≤0.015
X42	≤0.24	≤1.30	≤0.025	≤0.015
X46	≤0.24	≤1.40	≤0.025	≤0.015
X52	≤0.24	≤1.40	≤0.025	≤0.015

API 5L PSL1/PSL2 Mechanical property:
                                                                                     Standard                                                                 Steel Grade                                                                 Yield Strength(MPa)                                             Tensile Strength(MPa)                                                                            API 5L                    Line Pipe                                              PSL1                    Physical Properties                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                PSL2                    Physical Properties                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    

A25	172	310
A	207	331
B	241	414
X42	290	414
X46	317	434
X52	359	455
X56	386	490
X60	414	517
X65	448	531
X70	483	565
	241-448	414-758
B	290-496	414-758
X42	317-524	434-758
X46	359-531	455-758
X52	386-544	490-758
X56	414-565	517-758
X60	448-600	531-758
X65	483-621	565-758
X70	552-690	621-827

API 5L Line Pipe Dimensions:
                                                            API 5L Line Pipe Dimensions                                              OD(mm)                                             Wall Thickness(mm)                                                                           Pipes Body                    OD(mm)                     Allowable Tolerance(mm)                     OD(mm)                     Allowable Tolerance (mm)                                                                                                                                                                                                                                                                                                                                                                    

≥60.3, S＜20	±0.75%	≤73.0	+15%, -12.5%
≥60.3, S≥20	±1.00%	＞73.0, S＜20	+15%, -12.5%
/	/	＞73.0, S≥20	+17.5%, -10%

Info included in quotation:The content of the quotation shall include the details of specifications and grade of steel, level of product specification, PSL1 or PSL2. Check the following charts of PSL1/PSL2 comparison in chemical composition, tensile properties, impact energy.