Longitudinally welded steel pipes

Pipes are manufactured according to the requirements of:  PN-EN10219, PN-EN10217-1, PN-EN10217-5, PN-EN10208-1, PN-EN10217-3, PN-EN10224 standards.

Pipes are manufactured in diameter range from 559 mm to 2032 mm, with plain or beveled ends. Pipes in diameter from 559 to 914 mm are manufactured with one longitudinal welds and from diameter 1016 mm to 1620 mm with two welds, and above with three longitudinal welds. Line pipes in diameter from 559 mm to 1118 mm are hydrostatic tested under pressure up to 4,9 Mpa. Non-destructive tests of weld for pipes in diameters from 813 mm to 1620 mm are made continuously by radiological tests-on request.
    

 

Upon technical agreement, pipes can be supplied with different diameters and wall thicknesses that are given in the table, in outside diameters from 559 mm to 2032 mm, in production lengths of 5,2 - 8,2 m. Pipes are manufactured from killed, non-alloy, low-alloy, commercial steel and special steel grades.
Depending on the customer's need pipes are supplied as: either bare - without protection coating, or with external three layer polyethylene (PE) coatings (up to 1420 mm) and with internal cement or epoxy linings. Upon agreement pipes can be supplied with other anticorrosion protection.



Production programme of SAWL
PN

Strength class or steel grade symbol
PN-EN 10219 S235JRH S275JOH
S2752H		 S355JOH
S3552H
DIN 1626 St37.0 St44.0 St52.0
PN-EN 10217-1 P195TR1/TR2
P235TR1/TR2		 P265TR1/TR2  
PN-EN 10217-5 P235GH P265GH  
Outside diameter Wall thickness mm/inch
mm cal
559 22

8,0 - 11,0
0,315 - 0,433

 8,0 - 10,0
0,315 - 0,394
610 24 8,0 - 12,5
0,315 - 0,492
660 26
711 28 8,0 - 14,2
0,315 - 0,559		 8,0 - 12,5
0,315 - 0,492
813 32 8,0 - 16,0
0,315 - 0,630		 8,0 - 16,0
0,315 - 0,630		 8,0 - 16,0
0,315 - 0,630
914 36
1016 40
1220* 48
1420* 56 8,8 - 17,5
0,346 - 0,688		 8,8 - 16,0
0,315 - 0,630		 8,8 - 14,2
0,315 - 0,559
1620* 64 10,0 - 17,5
0,394 - 0,688		 10,0 - 16,0
0,394 - 0,630		 10,0 - 14,2
0,394 - 0,559
1720* 68 10,0 - 16,0
0,394 - 0,630
1820* 72
2020* 80 10,0 - 17,5
0,394 - 0,688

 

* Pipes produced without hydrostatic test
Production of pipies acc. API standard after additional adjustment.

See also