LSAW STEEL PIPE
Outside Diameter：Φ406mm – 1524mm (16″ – 60″ )
Wall Thickness：6.0 – 60mm (1/4″ – 3″ )
Quality Standards：API、ISO、EN、ASTM、DIN、JIS、GB、CSA、GOST
Length：3 – 12.5m ( 10”- 40”)
Coating：Bare, Black painted,FBE, 3LPE, 3LPP, or as per client requirements
description
LSAW large diameter steel pipe is a large steel pipe, usually over 508mm in diameter, which is made by coiling steel plate and then welding it axially in a straight line.The production process includes steel plate pre-treatment, JCOE forming, submerged arc welding, and expansion testing, and the use of multi-filament submerged arc welding ensures a high-strength weld seam. This type of steel pipe is mainly used for oil and gas transportation, water conservancy projects and large-scale infrastructure projects, such as submarine pipelines and bridge pile pipes. Compared with other steel pipes, it has the advantages of strong pressure-bearing capacity, high dimensional accuracy, high material utilization, and can achieve 50-year service life through anti-corrosion treatment.
Product Name: LSAW Steel Pipe, SAWL Steel Pipe,DSAW Steel Pipe
Specifications:
Outer Diameter: 406.6mm-1524mm
Wall Thickness: 7-60mm
Length: 5.8m / 6m / 11.8m / 12m / 18m
Standard and Steel Grade:
API SPEC 5L: Gr.B, X42, X46, X52, X56, X60, X65, X70, PSL1-/PSL-2
ASTM A252: GR.1,GR.2,GR.3
ASTM A53 /ASTM A500 : GR.A, GR.B
ASTM A671/ASTM A672: CA55, CB60,CB65,CB70,CC60,CC65,CC70
EN10219 / EN10217: S235JR/J0/J2,275JR/J0/J2S,S355JR/J0/J2/J2G3/G4
AS/NZ 1163 /AS/NZS 1579：C250,C350,C350L0
JIS G3444 / JIS G3457：STK290,STK400,TK500,STK540,STPG370,STPG410
DIN17100: ST37,ST44,ST52
Ends: Bevelled ends / Plain ends/ Welded with Flange
Surface Treatment: Bare, Black Painting, Varnished, Galvanized, Anti-corrosion coating (FEB,3LPE,3LPP), etc.
Specification
| DIAMETER | NOMINAL WALL THICKNESS | ||||||||||||||||
| mm | inch | 6.0 | 7.0 | 8.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 16.0 | 18.0 | 20.0 | 22.0 | 25.0 | 30.0 |
| Unit length weight (kg/m) | |||||||||||||||||
| 406.4 | 16.0 | 59.3 | 69.0 | 78.6 | 88.2 | 97.8 | 107.3 | 116.7 | |||||||||
| 426.0 | 62.1 | 72.3 | 82.5 | 92.6 | 102.6 | 112.6 | 122.5 | ||||||||||
| 457.0 | 18.0 | 66.7 | 77.7 | 88.6 | 99.4 | 110.2 | 121.0 | 131.7 | |||||||||
| 478.0 | 69.8 | 81.3 | 92.7 | 104.1 | 115.4 | 126.7 | 137.9 | ||||||||||
| 508.0 | 20.0 | 74.3 | 86.5 | 98.7 | 110.8 | 122.8 | 134.8 | 146.8 | 158.7 | 170.6 | |||||||
| 529.0 | 77.4 | 90.1 | 102.8 | 115.4 | 128.0 | 140.5 | 153.0 | 165.4 | 177.8 | ||||||||
| 559.0 | 22.0 | 81.8 | 95.3 | 108.7 | 122.1 | 135.4 | 148.7 | 161.9 | 175.0 | 188.2 | |||||||
| 610.0 | 24.0 | 89.4 | 104.1 | 118.8 | 133.4 | 148.0 | 162.5 | 177.0 | 191.4 | 205.8 | 220.1 | 234.4 | |||||
| 630.0 | 92.3 | 107.5 | 122.7 | 137.8 | 152.9 | 167.9 | 182.9 | 198.8 | 212.7 | 227.5 | 242.3 | ||||||
| 660.0 | 26.0 | 96.8 | 112.7 | 128.6 | 144.5 | 160.3 | 176.1 | 191.8 | 207.4 | 223.0 | 238.6 | 254.1 | 285.0 | 315.6 | |||
| 711.0 | 28.0 | 104.3 | 121.5 | 138.7 | 155.8 | 172.9 | 189.9 | 206.9 | 223.8 | 240.7 | 257.5 | 274.2 | 307.6 | 340.8 | |||
| 720.0 | 105.7 | 123.1 | 140.5 | 157.8 | 175.1 | 192.4 | 209.5 | 226.7 | 243.8 | 260.8 | 277.8 | 311.6 | 345.2 | ||||
| 762.0 | 30.0 | 111.9 | 130.3 | 148.8 | 167.1 | 185.5 | 203.7 | 222.0 | 240.1 | 258.3 | 276.3 | 294.4 | 330.2 | 366.0 | |||
| 813.0 | 32.0 | 119.4 | 139.1 | 158.8 | 178.5 | 198.0 | 217.6 | 237.1 | 256.5 | 275.9 | 295.2 | 314.5 | 352.9 | 391.1 | |||
| 820.0 | 120.5 | 140.4 | 160.2 | 180.0 | 199.8 | 219.5 | 239.1 | 258.7 | 278.3 | 297.8 | 317.3 | 356.0 | 394.6 | ||||
| 864.0 | 34.0 | 147.9 | 168.9 | 189.8 | 210.6 | 231.4 | 252.1 | 272.8 | 293.5 | 314.1 | 334.6 | 375.5 | 416.3 | ||||
| 914.0 | 36.0 | 178.8 | 200.9 | 222.9 | 245.0 | 266.9 | 288.9 | 310.7 | 332.6 | 354.3 | 397.7 | 440.9 | |||||
| 920.0 | 179.9 | 202.2 | 224.4 | 246.6 | 268.7 | 290.8 | 312.8 | 334.8 | 356.7 | 400.4 | 443.9 | ||||||
| 965.0 | 38.0 | 188.8 | 212.2 | 235.5 | 258.8 | 282.0 | 305.2 | 328.3 | 351.4 | 374.5 | 420.4 | 466.1 | |||||
| 1016.0 | 40.0 | 198.9 | 223.5 | 248.1 | 272.6 | 297.1 | 321.6 | 346.0 | 370.3 | 394.6 | 443.0 | 491.2 | 539.3 | ||||
| 1020.0 | 199.7 | 224.4 | 249.1 | 273.7 | 298.3 | 322.8 | 347.3 | 371.8 | 396.2 | 444.8 | 493.2 | 541.4 | |||||
| 1067.0 | 42.0 | 208.9 | 234.8 | 260.7 | 286.5 | 312.2 | 337.9 | 363.6 | 389.2 | 414.7 | 465.7 | 516.4 | 566.9 | ||||
| 1118.0 | 44.0 | 219.0 | 246.2 | 273.3 | 300.3 | 327.3 | 354.3 | 381.2 | 408.0 | 434.8 | 488.3 | 541.5 | 594.6 | ||||
| 1168.0 | 46.0 | 228.9 | 257.2 | 285.6 | 313.9 | 342.1 | 370.3 | 398.4 | 426.5 | 454.6 | 510.5 | 566.2 | 621.7 | ||||
| 1219.0 | 48.0 | 238.9 | 268.6 | 298.2 | 327.7 | 357.2 | 386.6 | 416.0 | 445.4 | 474.7 | 553.1 | 591.3 | 649.4 | ||||
| 1220.0 | 239.1 | 268.8 | 298.4 | 327.8 | 357.5 | 387.0 | 416.4 | 445.8 | 475.1 | 535.6 | 591.8 | 649.9 | |||||
| 1321.0 | 52.0 | 291.2 | 323.3 | 327.8 | 387.4 | 419.3 | 451.3 | 483.1 | 514.9 | 578.4 | 641.7 | 704.7 | |||||
| 1420.0 | 347.7 | 355.4 | 416.7 | 451.1 | 485.4 | 519.7 | 554.0 | 622.3 | 690.5 | 758.4 | 860.0 | 1028.3 | |||||
| 1422.0 | 56.0 | 348.2 | 382.2 | 417.3 | 451.7 | 486.1 | 520.5 | 554.8 | 623.3 | 691.5 | 759.6 | 861.3 | 1029.8 | ||||
| 1524.0 | 60.0 | 373.4 | 410.4 | 447.5 | 484.4 | 521.3 | 558.2 | 595.0 | 668.5 | 741.8 | 814.9 | 924.1 | 1105.3 | ||||
| 1620.0 | 397.0 | 436.5 | 457.8 | 515.2 | 554.5 | 593.7 | 623.9 | 711.1 | 789.1 | 867.0 | 983.3 | 1176.3 | |||||
production process
application
LSAW steel pipe is widely used in key industries requiring stable performance:
Oil and gas transportation: The main pipelines for crude oil, natural gas and refined oil products rely on their high pressure capacity, reliable welds and corrosion resistance to ensure safety.
Structural engineering: deep foundation support piles for large buildings, bridge foundations and piers, conduit racks and pile legs for offshore oil and gas platforms, providing strong support.
Water infrastructure: urban and regional large-diameter trunk water supply pipelines, large-scale drainage / sewerage pipeline systems to meet the high flow and long-term service requirements.
Mining and Energy: Long-distance slurry/tailings transportation pipelines for mines, pressure steel pipes for hydroelectric power plants and water diversion tunnel liners to cope with high abrasion and high water pressure environments.
Urban construction: subway tunnel shield tube sheet connection / lining, ultra-high-rise building deep foundation pit ring support structure, to ensure the structural safety and stability of underground engineering.
advantages
Large Diameter: Can be produced in diameters ranging from 16 inches (406mm) up to 60 inches (1524mm) to meet mainline, high volume transportation needs.
Thick Walls: Very large wall thicknesses (typically 6mm and up to 40mm or more) can be produced to withstand high pressures and heavy loads.
High strength and toughness: through the selection of appropriate steel and welding process, can be obtained to meet the requirements of high-pressure transportation and heavy structural requirements of high strength (such as X70, X80) and low-temperature toughness.
Good welding quality: Submerged Arc Welding (SAW) process is stable, the weld quality is high, few defects, excellent mechanical properties (strength, toughness) and good consistency.
Relatively high dimensional accuracy: Especially UOE/JCOE and other molding process of LSAW pipe production, roundness and straightness is better.
Economy (vs. seamless): In the field of large-diameter thick-walled tubes to meet performance requirements, LSAW has a cost advantage over seamless tubes.
packing
Large diameter LSAW pipe transportation need to pay attention to anti-deformation and anti-corrosion, the use of special bracket fixed in transport and good end protection. The main mode of sea transportation is container transportation (suitable for short pipes), bulk carrier transportation (economic but complicated loading and unloading) and special pipeline carriers (safe and efficient but high cost). Container transportation is suitable for small quantities over short distances, bulk carriers are suitable for large quantities but require high protection of pipe ends, and special pipeline ships are suitable for long-distance, high-volume transportation, which can maximize the protection of pipe quality.
| DIAMETER | NOMINAL WALL THICKNESS | ||||||||||||||||
| mm | inch | 6.0 | 7.0 | 8.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 16.0 | 18.0 | 20.0 | 22.0 | 25.0 | 30.0 |
| Unit length weight (kg/m) | |||||||||||||||||
| 406.4 | 16.0 | 59.3 | 69.0 | 78.6 | 88.2 | 97.8 | 107.3 | 116.7 | |||||||||
| 426.0 | 62.1 | 72.3 | 82.5 | 92.6 | 102.6 | 112.6 | 122.5 | ||||||||||
| 457.0 | 18.0 | 66.7 | 77.7 | 88.6 | 99.4 | 110.2 | 121.0 | 131.7 | |||||||||
| 478.0 | 69.8 | 81.3 | 92.7 | 104.1 | 115.4 | 126.7 | 137.9 | ||||||||||
| 508.0 | 20.0 | 74.3 | 86.5 | 98.7 | 110.8 | 122.8 | 134.8 | 146.8 | 158.7 | 170.6 | |||||||
| 529.0 | 77.4 | 90.1 | 102.8 | 115.4 | 128.0 | 140.5 | 153.0 | 165.4 | 177.8 | ||||||||
| 559.0 | 22.0 | 81.8 | 95.3 | 108.7 | 122.1 | 135.4 | 148.7 | 161.9 | 175.0 | 188.2 | |||||||
| 610.0 | 24.0 | 89.4 | 104.1 | 118.8 | 133.4 | 148.0 | 162.5 | 177.0 | 191.4 | 205.8 | 220.1 | 234.4 | |||||
| 630.0 | 92.3 | 107.5 | 122.7 | 137.8 | 152.9 | 167.9 | 182.9 | 198.8 | 212.7 | 227.5 | 242.3 | ||||||
| 660.0 | 26.0 | 96.8 | 112.7 | 128.6 | 144.5 | 160.3 | 176.1 | 191.8 | 207.4 | 223.0 | 238.6 | 254.1 | 285.0 | 315.6 | |||
| 711.0 | 28.0 | 104.3 | 121.5 | 138.7 | 155.8 | 172.9 | 189.9 | 206.9 | 223.8 | 240.7 | 257.5 | 274.2 | 307.6 | 340.8 | |||
| 720.0 | 105.7 | 123.1 | 140.5 | 157.8 | 175.1 | 192.4 | 209.5 | 226.7 | 243.8 | 260.8 | 277.8 | 311.6 | 345.2 | ||||
| 762.0 | 30.0 | 111.9 | 130.3 | 148.8 | 167.1 | 185.5 | 203.7 | 222.0 | 240.1 | 258.3 | 276.3 | 294.4 | 330.2 | 366.0 | |||
| 813.0 | 32.0 | 119.4 | 139.1 | 158.8 | 178.5 | 198.0 | 217.6 | 237.1 | 256.5 | 275.9 | 295.2 | 314.5 | 352.9 | 391.1 | |||
| 820.0 | 120.5 | 140.4 | 160.2 | 180.0 | 199.8 | 219.5 | 239.1 | 258.7 | 278.3 | 297.8 | 317.3 | 356.0 | 394.6 | ||||
| 864.0 | 34.0 | 147.9 | 168.9 | 189.8 | 210.6 | 231.4 | 252.1 | 272.8 | 293.5 | 314.1 | 334.6 | 375.5 | 416.3 | ||||
| 914.0 | 36.0 | 178.8 | 200.9 | 222.9 | 245.0 | 266.9 | 288.9 | 310.7 | 332.6 | 354.3 | 397.7 | 440.9 | |||||
| 920.0 | 179.9 | 202.2 | 224.4 | 246.6 | 268.7 | 290.8 | 312.8 | 334.8 | 356.7 | 400.4 | 443.9 | ||||||
| 965.0 | 38.0 | 188.8 | 212.2 | 235.5 | 258.8 | 282.0 | 305.2 | 328.3 | 351.4 | 374.5 | 420.4 | 466.1 | |||||
| 1016.0 | 40.0 | 198.9 | 223.5 | 248.1 | 272.6 | 297.1 | 321.6 | 346.0 | 370.3 | 394.6 | 443.0 | 491.2 | 539.3 | ||||
| 1020.0 | 199.7 | 224.4 | 249.1 | 273.7 | 298.3 | 322.8 | 347.3 | 371.8 | 396.2 | 444.8 | 493.2 | 541.4 | |||||
| 1067.0 | 42.0 | 208.9 | 234.8 | 260.7 | 286.5 | 312.2 | 337.9 | 363.6 | 389.2 | 414.7 | 465.7 | 516.4 | 566.9 | ||||
| 1118.0 | 44.0 | 219.0 | 246.2 | 273.3 | 300.3 | 327.3 | 354.3 | 381.2 | 408.0 | 434.8 | 488.3 | 541.5 | 594.6 | ||||
| 1168.0 | 46.0 | 228.9 | 257.2 | 285.6 | 313.9 | 342.1 | 370.3 | 398.4 | 426.5 | 454.6 | 510.5 | 566.2 | 621.7 | ||||
| 1219.0 | 48.0 | 238.9 | 268.6 | 298.2 | 327.7 | 357.2 | 386.6 | 416.0 | 445.4 | 474.7 | 553.1 | 591.3 | 649.4 | ||||
| 1220.0 | 239.1 | 268.8 | 298.4 | 327.8 | 357.5 | 387.0 | 416.4 | 445.8 | 475.1 | 535.6 | 591.8 | 649.9 | |||||
| 1321.0 | 52.0 | 291.2 | 323.3 | 327.8 | 387.4 | 419.3 | 451.3 | 483.1 | 514.9 | 578.4 | 641.7 | 704.7 | |||||
| 1420.0 | 347.7 | 355.4 | 416.7 | 451.1 | 485.4 | 519.7 | 554.0 | 622.3 | 690.5 | 758.4 | 860.0 | 1028.3 | |||||
| 1422.0 | 56.0 | 348.2 | 382.2 | 417.3 | 451.7 | 486.1 | 520.5 | 554.8 | 623.3 | 691.5 | 759.6 | 861.3 | 1029.8 | ||||
| 1524.0 | 60.0 | 373.4 | 410.4 | 447.5 | 484.4 | 521.3 | 558.2 | 595.0 | 668.5 | 741.8 | 814.9 | 924.1 | 1105.3 | ||||
| 1620.0 | 397.0 | 436.5 | 457.8 | 515.2 | 554.5 | 593.7 | 623.9 | 711.1 | 789.1 | 867.0 | 983.3 | 1176.3 | |||||
LSAW steel pipe is widely used in key industries requiring stable performance:
Oil and gas transportation: The main pipelines for crude oil, natural gas and refined oil products rely on their high pressure capacity, reliable welds and corrosion resistance to ensure safety.
Structural engineering: deep foundation support piles for large buildings, bridge foundations and piers, conduit racks and pile legs for offshore oil and gas platforms, providing strong support.
Water infrastructure: urban and regional large-diameter trunk water supply pipelines, large-scale drainage / sewerage pipeline systems to meet the high flow and long-term service requirements.
Mining and Energy: Long-distance slurry/tailings transportation pipelines for mines, pressure steel pipes for hydroelectric power plants and water diversion tunnel liners to cope with high abrasion and high water pressure environments.
Urban construction: subway tunnel shield tube sheet connection / lining, ultra-high-rise building deep foundation pit ring support structure, to ensure the structural safety and stability of underground engineering.
Large Diameter: Can be produced in diameters ranging from 16 inches (406mm) up to 60 inches (1524mm) to meet mainline, high volume transportation needs.
Thick Walls: Very large wall thicknesses (typically 6mm and up to 40mm or more) can be produced to withstand high pressures and heavy loads.
High strength and toughness: through the selection of appropriate steel and welding process, can be obtained to meet the requirements of high-pressure transportation and heavy structural requirements of high strength (such as X70, X80) and low-temperature toughness.
Good welding quality: Submerged Arc Welding (SAW) process is stable, the weld quality is high, few defects, excellent mechanical properties (strength, toughness) and good consistency.
Relatively high dimensional accuracy: Especially UOE/JCOE and other molding process of LSAW pipe production, roundness and straightness is better.
Economy (vs. seamless): In the field of large-diameter thick-walled tubes to meet performance requirements, LSAW has a cost advantage over seamless tubes.
Large diameter LSAW pipe transportation need to pay attention to anti-deformation and anti-corrosion, the use of special bracket fixed in transport and good end protection. The main mode of sea transportation is container transportation (suitable for short pipes), bulk carrier transportation (economic but complicated loading and unloading) and special pipeline carriers (safe and efficient but high cost). Container transportation is suitable for small quantities over short distances, bulk carriers are suitable for large quantities but require high protection of pipe ends, and special pipeline ships are suitable for long-distance, high-volume transportation, which can maximize the protection of pipe quality.
