Fitout Inflow Plus 355

Inflow Plus 355

Inflow Plus 355 is our high strength, multi-certified, hot-finished HFI welded pressure tube.

Inflow™ Plus 355 is our high strength, multi-certified, hot-finished HFW (High Frequency Welded) pressure tube for general purpose and industrial conveyance solutions such as HVAC, steam services, petrochemical, process plant, fire protection and wear resistance applications.

Click the logo above to download the BIM Object for this product.

  • Primary standard EN 10217-3 Grade P355NH.
  • Multi-certified satisfying the mechanical properties of grades in other industry referenced standards, e.g. DIN1626 St52.0N/G, DIN1628 St52.4 and DIN17178 WSt E 355.
  • Suitable substitute for equivalent hot-finished fine grain seamless tube grades e.g. DIN1629 St52.0N, DIN1630 St52.4, & DIN17179 WSt E355.
  • General engineering tube to EN 10219 Grade S355J2H (for sizes greater than, equal to OD219.1mm).
  • Fully weldable.
  • Fully killed steel produced to fine grain practice for enhanced ductility.
  • Quality designation TC1 supplied as standard.
  • Quality designation TC2 option for sizes ≥ OD219.1mm.
  • Inflow™ Plus 355 provides full PED compliance being suitable for equipment in PED categories I, II, III or IV, also aligned with AD2000 Merkblatt W4.
  • Suitable for pressure applications and temperature range -20 to +400ºC (except EN 10219).
  • OD and ID weld beads fully removed.
  • Due to the superior mechanical properties of Inflow™ Plus 355, the same pressure integrity as for Inflow™ Plus 235 can be obtained with thinner walls.
  • The associated weight savings will enable a reduction in supporting load bearing structures, hangers and brackets etc.
  • Increased wear resistance – providing improved service life for applications where this is a consideration.
  • Backed up by technical experts who can offer advice on applications and product suitability.
  • Inflow™ Plus 355 is fully technically supported with a range of available product brochures.
  • Certified to BES 6001 Responsible Sourcing standard.
  • Supplied with 3.1 inspection certification to EN 10204.
  Inflow™ Plus 355
Delivery condition
and size range
Cold N/A
Hot OD17.2 - 193.7mm
WLA (Weld Line Anneal) OD219.1 - 508mm
Main targeted application General purpose pressure and
industrial conveyance
High strength, elevated
temp industrial pressure
Primary grade/min yield strength MPa 355
Tensile strength MPa 490-650
Elongation (longitudinal min) % 22
Standard temperature range (°C) -20 to 400
Low temp option (request at time of order) Note 1
Suitable alternative to seamless Yes

Note 1: It may be possible to demonstrate lower temperature properties if full application is known, please contact one of our account managers to discuss your requirements.


Product Downloads

Please Register or  to gain access to locked downloads.

Brochure.jpg



English We have automatically detected your language settings