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• About EN 10207 P265S Boiler Plate Steel
A simple pressure vessel is defined as any welded vessel subject to an internal gauge pressure greater than 0.5 bar which is intended to contain air or nitrogen and which is not intended to be fired.
EN 10207 P265S is steel for pressure purposes (P) with minimum yield strength of 265 MPa (265). It has specified mechanical properties at elevated temperatures. It is delivered in the normalised condition or an equivalent condition obtained by normalised rolling.

Applications

  • Boilers
  • Calorifiers
  • Columns
  • Dished ends
  • Filters
  • Flanges
  • Heat exchangers
  • Pipelines
  • Pressure vessels
  • Storage tanks
  • Valves

Properties

Chemical Requirements
(cast analysis, % by mass, maximum permitted unless indicated otherwise)

C Si Mn P S Al total
0.20 max 0.50 max 0.50 – 1.50 0.025 max 0.025 max 0.020 min

Tensile requirements

Product thickness Yield strength MPA Tensile strength MPA Elongation A%
up to 16mm 265 min 410 – 530 22 min
16mm to 40mm 255 min 410 – 530 22 min
over 40mm to 60mm 245 min 410 – 530 22 min

Impact energy values for the normalised condition.

-20°C
Lonigtudinal 28 J min

Min. values for proof strength Rp0,2 (MPa) at elevated temperatures.

Thickness 100°C 150°C 200°C 250°C 300°C
up to 60mm 194 185 176 158 140

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