SAW Longitudinal.

SAW Longitudinal

Longitudinal Submerged Arc Welded (LSAW) steel pipes are a type of welded steel pipe that are produced using the double-sided submerged arc welding method. These pipes are primarily used for the transportation of fluids and gases, especially in applications that require high-pressure resistance and low-temperature resistance.

Features

  • Large diameter
  • Thick walls
  • High-pressure resistance
  • Low-temperature resistance
  • Good toughness
  • Ductility
  • Uniformity
  • Compactness

Application Areas

  • Oil and gas industry
  • Central heating systems
  • Water supply
  • Sewage treatment
  • Engineering components
  • Natural gas pipe line
  • Oil pipe lines
  • Onshore structures
  • Construction Base
  • Steel Struction Base
  • Jeothermal Pipe lines etc.

Standards

Product Range

Outside Diameter: 508-1067 mm (20”-42”)
Thickness:6,4-25,4 mm
Lenght: 8-38 m

Steel Grades

API 5L PSL 1: Gr A, Gr B, X 42, X 46, X 52, X 56, X 60, X 65, X 70
API 5L PSL 2: Gr B, X42 , X46 , X52 , X56 , X60 , X65 , X70 , X80
ASTM A 53: Gr A, Gr B
ASTM A252: GRADE1, GRADE2, GRADE3
TS EN 10217-1(EN 10217-1): P 195 TR1, P 235 TR1, P 265 TR1, P 195 TR2, P 235 TR2, P 265 TR2
EN 10224: L 235, L 275, L 360
EN 10208 – 1/2: L 245NB, L 290NB, L 360NB
EN 10219 – 1/2: S 235, S 275, S 355

Manufacturing Standarts

  • EN-10217
  • EN 10224
  • DIN 1626
  • AWWA C-200
  • NFA 49150
  • DIN 2460
  • UNI 6363
  • GOST 20295
  • EN 10208-2
  • ISO 3183
  • TS EN 10217-1
  • AWWA C200
  • BS 534
  • UNI 6363
  • TS EN 10224
  • BS 3601
  • TS EN 10219
  • AWWA C208
  • BS 534

Surface Preparation

ISO 8501-1, ISO 8502-3, ISO 8503-1

 

Coating

Polyethylene : AWWA C 215, DIN 30670, NFA 49710, TS EN 10288, UNI 9099

Polypropylene : DIN 30678, NFA 49711

Solvent Free Epoxy : AWWA C 210, EN 10289, NFA 49709

Fusion-bonded Epoxy : AWWA C 213

Bitumen: DIN 30673, BS 534

Lining Standards

Epoxy : AWWA C 210, EN 10289, NFA 49709

Cement Mortar : AWWA C 205, DIN 2614, TS 8590, EN 10298

Fusion-bonded Epoxy : AWWA C 213

Tests

Non Destructive Tests
  • AUT Coil Lamination with 100% Coverage
  • AUT Online Weld Inspection
  • First Visual Inspection Manual
  • Ultrasonic Inspection
  • Hydrotest
  • AUT Online Weld HAZ and Pipe End
  • Lamination Inspection
  • Digital X-Ray Weld Inspection
  • Pipe End Magnetic Examination
  • Magnetic Particle Inspection Final Visual and Dimensional Inspection
Destructive Tests
  • Tensile Test Bending Test
  • Charpy V Notch Impact Test
  • Hardness Test
  • Macro and Micro Metallographic Examination
  • DWTT – Drop Weight Tear Test
  • Chemical Analysis Crack Tip Opening Displacement (CTOD) Test
Test Certificates
  • ISO 9712
  • ISO 11484
  • MTC according to EN10204/3.1

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