Pengfa Structural and Pipe Welding, an advanced product emanating from China's sophisticated manufacturing sector, is offered by a prestigious manufacturer with profound expertise in welding technology and structural engineering.
As a leading supplier, we specialize in Pengfa Structural and Pipe Welding services, which cater to the intricate needs of various industries requiring robust, precision-welded structures and piping systems. Utilizing state-of-the-art welding equipment and adhering to rigorous quality control measures, our services ensure seamless welds, high structural integrity, and corrosion resistance. Tailored for diverse applications such as oil and gas pipelines, building constructions, and industrial machinery, Pengfa Structural and Pipe Welding meets the highest industry standards, reflecting the manufacturer's unwavering commitment to quality, innovation, and customer satisfaction.
Longitudinal Submerged-Arc Welded Steel Pipe
Process: LSAW – UO(UOE)、RB(RBE)、JCO(JCOE,COE)
DSAW-Double Submerged Arc Welded
Usage: Used for low pressure liquid delivery, such as water, gas, and oil.
Standard: ASTM 53, EN10217, DIN 2458. IS 3589, GB/T3091, GB/T9711
Out Diameter: 355.6mm – 1820mm
Wall Thickness: 5.0 – 50mm
Length: 3 – 12.5m
LSAW steel pipe (Longitudinally Submerged Arc Welding abbreviated LSAW) is a professional expression term for longitudinally submerged arc welding, which is made of a single medium and thick plate as raw material, the steel plate is pressed (rolled) into a tube billet ina mold or forming machine, and is produced by double-sided submerged arc welding and expanded diameter.
The finished LSAW steel pipe has a wide range of specifications, good toughness, plasticity, uniformity and density of the weld, and has the advantages of large pipe diameter, pipe wall thickness, high pressure resistance, low temperature resistance and corrosion resistance.
In the construction of high strength and high quality long distance oil and gas pipelines, most of the steel pipes needed are large diameter thick wall straight seam submerged arc welded pipes.
Standard: API 5L, API 5CT, ASTM 53, EN10217, DIN 2458. IS 3589, GB/T3091, GB/T9711
Steel Grade
API 5L: GR B, X42,X46, X56, X60,X65,X70
ASTM A53: GR A, GR B, GR C
EN: S275, S275JR, S355JRH, S355J2H
GB: Q195, Q215, Q235, Q345, L175, L210, L245, L320, L360- L555
Surface: Fusion Bond Epoxy Coating, Coal Tar Epoxy, 3PE, Vanish Coating, Bitumen Coating, Black Oil Coating As Per Customer’s Requirement
Test: Chemical Component Analysis, Mechanical Properties (Ultimate Tensile Strength, Yield Strength, Elongation), Technical Properties (Flattening Test, Bending Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test.
Mill Test Certificate: EN10204 3.1
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| Year 2023 | Malaysia | 653.68 Tons | Bintulu Additional Gas Sales Facilities-2 (BAGSF-2), API 5L X52 PSL2，LSAW pipe with CVN TEST : -29 degree at 36J, DWT TEST: -29 degree for gas storage (EL098) |
| Year 2022 | Chile | 457.53 Tons | Piling Project in Chile，ASTM A252/ ASTM A572 GR.50，LSAW PIPE with piling shoes and reinforcement plate for piling(LX077) |
| Year 2022 | UAE | 711 Tons | Piling Project in UAE, EN 10219 S355JR, LSAW PIPE wtih piling shoes for piling(SLY048) |
| Year 2021 | Chile | 2400 Tons | Chilean Mining Company Project, API 5L L245/ASTM A53 GR.B, LSAW PIPE with outside 3LPE and inside FBE for water transmission(YS027) |
| Year 2020 | New Zealand | 968 Tons | Piling project in New Zealand, API 5L X65 PSL1, LSAW PIPE with plastic outer sleeves for piling(TS182) |
| Year 2020 | Ecuador | 1945 Tons | Heavy Crude Oil Pipeline Project in Ecuador, API 5L X70M PSL-2, LSAW PIPE for oil transmission(AL032) |
| Year 2020 | Ghana | 543 Tons | Danida Bridges Construction Projects in Northern Ghana, API 5L Gr.B, LSAW PIPE for bridge construction(JF166) |
