api 5l x46 pipe specification​-ssaw

Among them, the API 5L X46 SSAW pipe is manufactured using the Spiral Sub submerged Arc Welding process, covering two specification levels: API 5L PSL1 and API 5L PSL2, and including PSL2 material suitable for acidic environments.

Cangzhou Spiral Welded Steel Pipe Manufacturing Group relies on 13 production lines, CNAS accredited testing centers, and complete pipeline specifications to provide one-stop spiral welded pipe production, customized processing, and inspection services, which can meet the full process requirements of API 5L X46 and other steel grade pipelines from manufacturing to testing.

b. High resistance to dynamic tearing

c. High and low temperature impact toughness

d. Low ductile brittle transition temperature

e. Applicability to acidic environments, suitable for NACE

f. Economical and durable

Its excellent performance is attributed to the ultra-low carbon needle like ferrite structure, where high-density dislocations interact with small precipitates.

b. For each reduction of 0,01 % below the specified maximum for C, an increase of 0,05 % above the specified maximum for

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 PSL 2 pipe grades except those grades to which footnote j already applies, the following applies.

Unless otherwise agreed no intentional addition of  B is permitted and residual B ≤ 0,001%.

Whether it is seamless pipe or welded pipe (ERW, LSAW), the pressure rating, tensile strength, and yield strength of X46 pipes are the same. If the working conditions require higher pressure, you must increase the wall thickness of the steel pipe or choose a higher steel grade from API 5L.

As a spiral welded pipe factory, when the project requires a larger wall thickness or higher pressure rating, you can flexibly adjust the wall thickness and steel grade through the spiral welded pipe process. While ensuring the consistency of mechanical properties of X46 and even higher grades, you can quickly meet the large-scale demand for high-strength pipeline pipes in the oil and gas industry.

Bending test: You need to confirm that there should be no cracks in any part of the sample or weld opening.

Flattening test: This is a test used to demonstrate the deformation performance of pipelines. It should demonstrate resistance to longitudinal and circumferential cracking, including internal and external defects. You should note that this test is applicable to ERW pipes with a diameter exceeding 12.75 inches; For pipelines with OD/WT>10, the weld seam must not have openings until the distance between the plates is less than 30% of the original outer diameter.

Guided bending test: You should pay attention to the situation of complete fracture - any crack or rupture in the weld metal with a length exceeding 3.2mm should be displayed, regardless of depth; Or exposed to the base material, heat affected zone, or fusion line, with a length exceeding 3.2mm or a depth exceeding 12.5% of the wall thickness.

Water pressure test: You need to conduct a 100% water pressure test, requiring that the weld seam or pipe body has no leakage. If the pipe section used has already been successfully tested, the connection or joint does not need to undergo hydrostatic pressure testing again.

CVN impact test: This is the test required for PSL2 tubes. Seamless pipes should be tested together with the pipe body, while welding tests include pipe body, weld seam, and heat affected zone tests. The usual temperature for impact testing is 0 ℃.

DWT test: This is the test that needs to be conducted on the PSL2 pipeline.

These experiments may sound demanding, but what really matters to you is who will test them, where they will be tested, and whether the data is reliable. Wuzhou brand has its own CNAS accredited laboratory, which means that the bending, flattening, guided bending, water pressure, CVN impact, and DWT tests mentioned above can all be completed according to standards in Wuzhou factory, and the test results are authoritative and traceable. You don't have to send samples back and forth, nor do you have to worry about the testing cycle slowing down the delivery time - from raw materials to finished products, Wuzhou helps you control every quality link in your own hands, giving you not only a qualified spiral welded pipe, but also a visible and traceable quality assurance.

Standard: API 5L, ISO 3183

Grade: X46 or L320 (Suffix letter N, Q, M, R)

SSAW pipe Outerdiameter: 219mm – 3620mm, 8” – 144”

Wall Thickness: 6-25.4mm

Pipe Thickness Schedule: SCH 20, SCH 30, SCH STD, SCH40, SCH60, SCH XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH XXS of the standard thickness

Range of Length: SRL, DRL, 5 meter to 30 meter

Fixed Length: 5.8 Meter, 6.0 Meters (20FT), 11.8 Meters, 12.0 Meters (40FT)

Product Specification Level: PSL1, PSL2, Sour

Ends: Plain, Beveled Ends, Threaded Ends

Available Coating: Black Painting, Varnished, Anti-Rust Oil, FBE, 3PE/3LPE, 3PP, Galvanized