Tubes for pipelines for combustible fluids

Pipe features:

  • resistance to high temperatures that occur during the transfer of flammable media;
  • resistance to corrosion, which may occur as a result of contact with combustible media, moisture and other external factors;
  • high resistance to high pressure that occurs during the transport of flammable media;
  • durability to withstand many years without replacement, which is especially important in the case of gas or oil installations;
  • resistance to mechanical damage, such as impacts or shocks, to ensure safe transport of flammable media;
  • fire resistance to prevent the spread of fire in the event of a failure of the installation.
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  • EN ISO 3183 Steel tubes for pipeline transportation system Annex M – PSL 2 Pipe ordered for European onshore
  • DIN 2470-1 Steel gas pipelines – pressure up to 16 bar.
  • DIN 2470-2 Steel gas pipelines – pressure exceeding 16 bar.
  • DIN 17172 Steel pipes for pipelines for the transport of combustible fluids and gases.

Steel grades

  • wg EN ISO 3183-PSL1: L210, L245, L290, L320, L360, L390, L415, L450
  • wg EN ISO 3183-PSL2: L245NE, L290NE, L360NE, L415NE
  • wg DIN 2470-1/1629: St37.0
  • wg DIN 2470-2/17172: StE210.7, StE240.7, StE290.7, StE320.7, StE360.7, StE415.7


This group of tubes is mainly set for high pressure pipelines to deliver gases, oil and other flammable fluids in the mining, chemical and energy industry.

Delivery condition

Usually the tubes are supplied as hot rolled. Only the tubes with DN 6-10 and sometimes other dimensions are supplied as cold drawn and heat treated after forming. This is done upon agreement.

Tolerance of outside diameter D (according to EN ISO 3183)

D < 60,3 mm (2,375″): -0,80 mm +0,40 mm (-0,031″ +0,016″) 60,3 mm (2,375″) ≤  D  ≤ 168,3 mm (6,625″): ±0,0075D

Tolerance of wall thickness T (according to EN ISO 3183)

T < 4 mm (0,157″): -0,5 mm +0,6 mm (-0,020″ +0,024″) 4 mm (0,157″) ≤ T ≤ 25 mm (0,984″): -0,125T +0,150T

Tolerance of outside diameter D (according to DIN)

D ≤ 200 mm: ±1%, min ±0,5 mm

Tolerance of wall thickness T (according to DIN)

D ≤ 130 mm: ±10%
D > 130 mm: ±12,5%