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Boiler Plate Steel EN 10028:3 P275NH

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The specification EN 10028:3 covers a range of weldable fine grain steels supplied in the normalised condition and intended for pressure purposes. EN 10028:3 P275NH is steel for pressure purposes (P) with minimum yield strength of 275 MPa (275) which has specified elevated temperature properties (NH).

As well as P275NH we are stockists of other EN 10028:3 plates manufactured and certified to:

EN 10028:3 P355NL1 EN 10028:3 P355NL2 EN 10028:3 P355NH

We also carry stocks of plates certified to EN 10028:2 P265GH

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

C Si Mn P S Altotal N Cr
0.16 0.4 0.80-1.50 0.025 0.015 0.020 min 0.012 0.3
Cu Mo Nb Ni Ti V Nb+Ti+V
0.3 0.08 0.05 0.5 0.03 0.05 0.05
Tensile Requirements

Product Thickness Yield Strength MPa Tensile Strength MPa Elongation A%
up to 16 mm 275 min 390 to 510 24 min
16 to 40 mm 265 min 390 to 510 24 min
over 40 to 60 mm 255 min 390 to 510 24 min
over 60 to 100 mm 235 min 370 to 490 23 min
over 100 to 150 mm 225 min 360 to 480 23 min
over 150 to 250 mm 215 min 350 to 470 23 min
Impact energy values for the normalised condition

-20 OC 0 OC +20 OC
Transverse 30 J min 40 J min 50 J min
Longitudinal 45 J min 65 J min 75 J min
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