P275NHThe 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,NL,NH2,NH,NL1,NL2 is steel for pressure purposes (P) with minimum yield strength of 215MPa (215) which has specified elevated temperature properties (NH).

EN 10028 Part 2 & 3 is the euro norm specification for flat steel products intended for use in pressurised service. The specification covers non–alloy and alloys steels as well as weldable fine grain steels.

Specification

Grade
Number
Standard
Density
Classification
P275NH
1.0487
EN 10028:3
7.85 g/cm ³
Non-alloy elevated temperature quality steel

 


Chemical composition %   of grade   P275NH (1.0487)

Element
Max %
Element
max %
C
0.18
Cu
0.30
Si
0.40
Mo
0.08
Mn
0.50-1.40
N
0.02
P
0.03
Nb
0.05
S
0.03
Ni
0.50
AL
0.020
Ti
0.03
Cr
0.30
V
0.05
Nb+Ti+V
0.05

 


Mechanical properties of grade   P275NH (1.0487)

Nominal thickness (mm):
to 60
60 – 100
100 – 150
150 – 250
Rm – Tensile strength (MPa) (+N)
390-510
370-490
360-480
350-470

 

Nominal thickness (mm):
to 16
16 – 40
40 – 60
60 – 100
100 – 150
150 – 250
ReH – Minimum yield strength (MPa) (+N)
275
265
255
235
225
215

 

KV – Impact energy (J) transverse, (+N)
-20°
+20°
30
40
50
KV – Impact energy (J) longitud., (+N)
-20°
+20°
40-45
47-65
55-75

 

Nominal thickness (mm):
to 60
60 – 250
A – Min. elongation at fracture (%) (+N)
24
23

Equivalent grades of grade   P275NH (1.0487)

USA
Germany
England
-
DIN,WNr
BS
A516Gr.60
WStE285
224Gr.430

Usage

  • The grade is intended for use in moderate to high temperature service.
  • P275NH is a weldable fine-grain steel suitable for the fabrication of pressure vessels for pressurised gases and chemicals, industrial boilers, compressors and heat exchangers.

To find out more about Triton Alloys Inc Services and our Range of “P275NH” which we can supply directly to you, Click Here to Contact Us.