Line pipes for gas and combustible fluids

EN 10208-1
Steel tubes for combustible substances Requirement category A
Material number EN1.0319L 210 GA
1.0458L 235 GA
1.0459L 245 GA
1.0483L 290 G
1.0499L 360 GA
Dimension
OD33,7 up to 1.626 mm (seamless up to 660 mm)
WTup to 40 mm
Tube type and production sequenceacc. to EN 10208-1 table 1
Tolerances of outside diameter, out-of-roundnessacc. to EN 10208-1 table 6
Tolerances of wall thicknessacc. to EN 10208-1 table 7
Maximum values for the radial offsetacc. to EN 10208-1 table 10
Maximum height of welding beadacc. to EN 10208-1 table 11
Tests and requirementsacc. to EN 10208-1 table 12 & table D.1
Straightness0,2 % on the whole tube, locally < 4mm/m
Outside coating PEEN 10285 or EN 10287 in 3 layer extruder-processor fusion bond finish
MarkingManufacturer's sign, EN-standard, steel quality, S for seamless, W for welded, for certification 3.1 additionally inspector's mark and ID – number
Scope of applicationDistribution of combustible substances with fixed operative pressure for the oil and gas industry. (Formerly DIN 2470-1 together with DIN 1626/1629 and DVGW-worksheet G260/1)
Manufacturing process
  - seamlessS
  - weldedEW – electric welded
BW – continiously welded
SAW – under powder welded
COW – combined welded
EN 10208-2
Steel tubes for combustible substances Requirement category B
Material number EN
welded and seamless1.0457L 245 NB
1.0484L 290 NB
1.0582L 360 NB
1.8972L 415 NB
seamless1.8948L 360 QB
1.8947L 415 QB
1.8952L 450 QB
1.8955L 485 QB
1.8957L 555 QB
welded1.0418L 245 MB
1.0429L 290 MB
1.0578L 360 MB
1.8973L 415 MB
1.8975L 450 MB
1.8977L 485 MB
1.8978L 555 MB
Dimension
OD33,7 up to 1.626 mm (seamless up to 660 mm)
WTup to 40 mm
Tube type and production sequenceacc. to EN 10208-2 table 2
Tolerances of outside diameter, out-of-roundnessEN 10208-2 table 9
Tolerances of WTacc. to EN 10208-2 table 10
Maximum height of welding beadacc. to EN 10208-2 table 15
Straightness0,2 % on the whole tube, locally < 4mm/m
Outside surface PEEN 110285 or EN 10287 in 3 layer extruder or reflow process
MarkingManufacturer's sign, EN-standard, steel quality, S for seamless, W for welded, for certification 3.1 additionally inspector's mark and ID – number
Certification3.1 and / or 3.2
Scope of applicationDistribution of combustible substances with fixed operative pressure (formerly DIN 17172)
Manufacturing process
seamlessS
welded HFW – high frequency welded
SAW – under powder welded
COW – combined welded
For spirally welded steel pipes skelp weld ends are allowed on request