API 5L Grade X52 PSL 1 / PSL 2 Pipe Specifications
Grade: API 5L X52 PSL1、PSL 2 / ISO 3183 L360 PSL1， PSL 2
seamless pipe Size: 1/2” – 24”
ERW pipe Size: 1/2” – 20”
SAW pipe Size: 16” – 100” Wall Thickness: Schedule 20 to Schedule XXS，All Schedules
Length: Single Random Length, Double Random Length And Customize Size.
Ends: Plain Ends、Beveled Ends、Coupling
Available coatings: Black Painting, Varnished,Galv, FBE, FBE Dual, 3LPE, 3LPP
API 5L X52 pipe, also known as L360 pipe, is a medium steel grade of API 5L specification of the American Petroleum Institute, which complies with ISO 3183 specification.
API 5L Grade X52 pipe covers two types: seamless and welded, and two grades: PSL1 and PSL2.PSL 1 is the standard quality for line pipes, while PSL 2 includes additional chemical, mechanical properties and test requirements such as CVN impact test and DWT test. In terms of delivery status, PSL1 is suitable for rolled steel pipes in normal delivery status, while PSL2 is divided into three types: N, M, and Q, which require normalizing, tempering and quenching, and deformation heat treatment respectively.
API 5L X52 (L360)grade oil and gas pipe is specially used for oil and gas transportation systems under high pressure and high temperature environment. It has excellent strength and toughness, yield strength of 360MPa~525MPa, tensile strength of 460MPa~625MPa, yield strength ratio ≤0.93, uniform material, dense structure, easy to carry out various welding and processing operations. The coating and lining of API 5L X52 grade coated pipes protect the pipelines from corrosion, improve service life, corrosion resistance and flow efficiency, and resist cracking and corrosion in acidic working environments such as marine engineering and chemical industry to improve overall performance.
Compared with lower grade pipes such as API 5L B, API 5L X42, and API 5L X46, API 5L X52 has better mechanical properties and can achieve the same rated pressure with a thinner wall thickness. It has more advantages under the same size. Its excellent mechanical strength ensures the stability of the pipeline under complex working conditions.
Contact us for price: sales@gneetube.com
specification format of api 5l Gr.x52 pipe
| API 5l x52 Standard | API 5L X52, ISO 3183 |
| Grade |
API 5L X52 PSL,1API 5L X52 PSL 2 |
| seamless pipe Size | 1/2" – 24" |
| ERW pipe Size | 1/2" – 20" |
| SAW pipe Size | 16" – 100" |
| Wall Thickness | Schedule 20 to Schedule XXS,All Schedules |
| Length | Single Random Length, Double Random Length And Customize Size. |
| Test | HIC / SSC TEST, NACE MR0175 / TM0177 / TM0284, H2 SERVICE, IBR etc. |
| Wall Thick. | SCH10, 20, 30, STD, 40, 60, XS, 80, 100, 120, 140, 160, XXS DIN, JIS |
API 5L Grade X52 Chemical Composition
| Chemical Composition API 5L X52 PSL 1 Pipe | |||||||
|---|---|---|---|---|---|---|---|
| Steel Grade | API 5L X52 Mass fraction, % based on heat and product analyses a,g | ||||||
| C | Mn | P | S | V | Nb | Ti | |
| max b | max b | max | max | max | max | max | |
| Seamless Pipe | |||||||
| X52 | 0.28 | 1.4 | 0.3 | 0.3 | d | d | d |
| Welded Pipe | |||||||
| X52 | 0.26 | 1.4 | 0.3 | 0.3 | d | d | d |
| a. Cu ≤ = 0.50% Ni; ≤ 0.50%; Cr ≤ 0.50%; and Mo ≤ 0.15%, | |||||||
| b. For each reduction of 0.01% below the specified maximum concentration for carbon, an increase of 0.05% above the specified maximum concentration for Mn is permissible, up to a maximum of 1.65% for grades ≥ L245 or B, but ≤ L360 or X52; up to a maximum of 1.75% for grades > L360 or X52, | |||||||
| c. Unless otherwise agreed NB + V ≤ 0.06%, | |||||||
| d. Nb + V + TI ≤ 0.15%, | |||||||
| e. Unless otherwise agreed., | |||||||
| f. Unless otherwise agreed, NB + V = Ti ≤ 0.15%, | |||||||
| g. No deliberate addition of B is permitted and the residual B ≤ 0.001% | |||||||
| Chemical Composition API 5L X52 PSL 2 Pipe | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Steel Grade | Mass fraction, % based on heat and product analyses | Carbon Equiv a | ||||||||||
| C | Si | Mn | P | S | V | Nb | Ti | Other | CE IIW | CE Pcm | ||
| max b | max | max b | max | max | max | max | max | max | max | |||
| Seamless and Welded Pipe | ||||||||||||
| X52N | 0.24 | 0.45 | 1.4 | 0.025 | 0.015 | 0.1 | 0.05 | 0.04 | d,e,l | 0.043 | 0.25 | |
| X52Q | 0.18 | 0.45 | 1.5 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | e,l | 0.043 | 0.25 | |
| Welded Pipe | ||||||||||||
| X52M | 0.22 | 0.45 | 1.4 | 0.025 | 0.015 | d | d | d | e,l | 0.043 | 0.25 | |
| a. SMLS t>0.787", CE limits shall be as agreed. The CEIIW limits applied if C > 0.12% and the CEPcm limits apply if C ≤ 0.12% | ||||||||||||
| b. For each reduction of 0.01% below the specified maximum for C, an increase of 0.05% above the specified maximum for Mn is permissible, up to a maximum of 1.65% for grades ≥ L245 or B, but ≤ L360 orAPI 5L X52; up to a maximum of 1.75% for grades > L360 or X52, but < L485 or X70; up to a maximum of 2.00% for grades ≥ L485 or X70, but ≤ L555 or X80, and up to a maximum of 2.20% for grades > L555 or X80 | ||||||||||||
| c. Unless otherwise agreed Nb = V ≤ 0.06% | ||||||||||||
| d. Nb = V = Ti ≤ 0.15% | ||||||||||||
| e. Unless otherwise agreed, Cu ≤ 0.50%; Ni ≤ 0.30% Cr ≤ 0.30% and Mo ≤ 0.15% | ||||||||||||
| f. Unless otherwise agreed | ||||||||||||
| g. Unless otherwise agreed, Nb + V + Ti ≤ 0.15% | ||||||||||||
| h. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 0.50% Cr ≤ 0.50% and MO ≤ 0.50% | ||||||||||||
| i. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 1.00% Cr ≤ 0.50% and MO ≤ 0.50% | ||||||||||||
|
j. B ≤ 0.004% |
||||||||||||
| k. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 1.00% Cr ≤ 0.55%, and MO ≤ 0.80% | ||||||||||||
| l. For all API 5L X52 PSL 2 pipe grades except those grades with footnotes j noted, the following applies. Unless otherwise agreed no intentional addition of B is permitted and residual B ≤ 0.001% | ||||||||||||
Mechanical Properties Tensile and Yield of API 5L X52, L360 Pipe
| Pipe Grade | Tensile Properties – Pipe Body of SMLS and Welded Pipes PSL 1 | Seam of Welded Pipe | ||
|---|---|---|---|---|
| Yield Strength a | Tensile Strength a | Elongation | Tensile Strength b | |
| Rt0,5 PSI Min | Rm PSI Min | (in 2in Af % min) | Rm PSI Min | |
| X52 | 52,200 | 66,700 | c | 66,700 |
| a. For intermediate grade, the difference between the specified minimum tensile strength and the specified minimum yield for the pipe body shall be as given for the next higher grade. | ||||
| b. For the intermediate grades, the specified minimum tensile strength for the weld seam shall be the same as determined for the body using foot note a. | ||||
| c. The specified minimum elongation, Af, expressed in percent and rounded to the nearest percent, shall be determined using the following equation: | ||||
 |
||||
| Where C is 1 940 for calculation using Si units and 625 000 for calculation using USC units | ||||
| Axc is the applicable tensile test piece cross-sectional area, expressed in square millimeters (square inches) , as follows | ||||
| – For circular cross-section test pieces, 130mm2 (0.20 in2) for 12.7 mm (0.500 in) and 8.9 mm (.350 in) diameter test pieces; and 65 mm2 (0.10 in2) for 6.4 mm (0.250in) diameter test pieces. | ||||
| – For full-section test pieces, the lesser of a) 485 mm2 (0.75 in2) and b) the cross-sectional area of the test piece, derived using the specified outside diameter and the specified wall thickness of the pipe, rounded to the nearest 10 mm2 (0.10in2) | ||||
| – For strip test pieces, the lesser of a) 485 mm2 (0.75 in2) and b) the cross-sectional area of the test piece, derived using the specified width of the test piece and the specified wall thickness of the pipe, rounded to the nearest 10 mm2 (0.10in2) | ||||
| U is the specified minimum tensile strength, expressed in megapascals (pounds per square inch) | ||||
| Pipe Grade | Tensile Properties – Pipe Body of SMLS and Welded Pipes PSL 2 | Seam of Welded Pipe | |||||
|---|---|---|---|---|---|---|---|
| Yield Strength a | Tensile Strength a | Ratio a,c | Elongation | Tensile Strength d | |||
| Rt0,5 PSI Min | Rm PSI Min | R10,5IRm | (in 2in) | Rm (psi) | |||
| Af % | |||||||
| Minimum | Maximum | Minimum | Maximum | Maximum | Minimum | Minimum | |
| X52N,X52Q,X52M | 52,200 | 76,900 | 66,700 | 110,200 | 0.93 | f | 66,700 |
| a. For intermediate grade, refer to the full API5L specification. | |||||||
| b. for grades > X90 refer to the full API5L specification. | |||||||
| c. This limit applies for pies with D> 12.750 in | |||||||
| d. For intermediate grades, the specified minimum tensile strength for the weld seam shall be the same value as was determined for the pipe body using foot a. | |||||||
| e. for pipe requiring longitudinal testing, the maximum yield strength shall be ≤ 71,800 psi | |||||||
| f. The specified minimum elongation, Af, expressed in percent and rounded to the nearest percent, shall be determined using the following equation: | |||||||
|
|||||||
| Where C is 1 940 for calculation using Si units and 625 000 for calculation using USC units | |||||||
| Axc is the applicable tensile test piece cross-sectional area, expressed in square millimeters (square inches) , as follows | |||||||
| – For circular cross-section test pieces, 130mm2 (0.20 in2) for 12.7 mm (0.500 in) and 8.9 mm (.350 in) diameter test pieces; and 65 mm2 (0.10 in2) for 6.4 mm (0.250in) diameter test pieces. | |||||||
| – For full-section test pieces, the lesser of a) 485 mm2 (0.75 in2) and b) the cross-sectional area of the test piece, derived using the specified outside diameter and the specified wall thickness of the pipe, rounded to the nearest 10 mm2 (0.10in2) | |||||||
| – For strip test pieces, the lesser of a) 485 mm2 (0.75 in2) and b) the cross-sectional area of the test piece, derived using the specified width of the test piece and the specified wall thickness of the pipe, rounded to the nearest 10 mm2 (0.10in2) | |||||||
| U is the specified minimum tensile strength, expressed in megapascals (pounds per square inch | |||||||
| g. Lower values fo R10,5IRm may be specified by agreement | |||||||
| h. for grades > x90 refer to the full API5L specification. | |||||||
Suffix letter with each grade describe the API 5L X52 Pipe delivery condition
| Sample | Letter | Delivery condition |
|---|---|---|
| X52N | N | Normalizing / Normalized formed or rolled |
| X52CR | CR | controlled rolling |
| X52NR | NR | Normalized Rolling |
| X52T | T | Tempering |
| X52A | A | Annealing |
| X52S | S | Sour Services (with level PSL2 pipe for QS, NS, MS, eg API 5L X52 NS |
| X52R | R | As rolled |
| X52TMCP | TMCP | Thermo-mechanical control process |
| X52Q | Q | Quenching |
| X52M | M | Thermomechanical rolled or formed |
| X52ACC | ACC | accelerated cooling |
| X52SR | SR | stress-relief annealing |
Test Requirements
| Hydrostatic test | Through water pressure testing, the strength of pressure-bearing components is evaluated, their defects are exposed, and it is ensured that they will not rupture or leak due to excessive pressure during use. |
| Bend Test | The bending properties of the material, including bending strength and ductility, are determined. During the bending test, no cracks should appear in any part of the pipe and the weld should not open. |
| Flattening test | The flattening test can ensure that the quality of the welded joint meets the standard and avoid failure problems caused by insufficient plasticity during use. It shows the resistance of the pipe to longitudinal and circumferential cracking. |
| Guided-bend test | Guided bend testing is a method of determining how a material behaves during bending, including its ductility, crack resistance, and whether the steel has cracks or other defects. |
| CVN impact test | It can simulate the impact and fracture conditions that the material may encounter in actual use to verify the toughness and fracture resistance of PSL2 pipes. |
| DWT test | It is used to determine the fracture ductility of PSL2 metal line pipes and observe the fracture morphology to evaluate the metallurgical defects of the pipes. |
API 5L X52 Pipe Types We Provide
| API 5L X52 Seamless Pipe | API 5L X52 ERW Pipe |
| API 5L X52 PSL2 High Yield Pipe | API 5L X52 Welded Pipe |
| API 5L X52 Acid service pipe | X52 Steel LSAW Pipeline |
| API 5L X52 Acid resistant pipe | API 5L X52 PSL2 Spiral Welded Pipe |
| API 5L X52 Oil pipeline | API 5L X52 PSL2 High Frequency Welded Pipe |
| API 5L X52 Gas pipeline | API 5L X52 galvanized steel pipe |
| API 5L X52 High strength pipe | API 5L X52 DSAW Pipe |
| Grade X52 PSL2 Carbon Steel Pipe | API 5L X52 Schedule 40 Pipe |
| API 5L Grade X52 Carbon Steel Line Pipe | API 5L X52 Sch 80 Pip |
| API 5L X52 Oil and weather pipes | API 5L X52 Carbon steel gas pipeline |
API X52 Steel Pipe Processing Services
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Gnee Packaging and shipping
FAQ
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