P265GHP265GH is a weldable pressure vessel and boiler steel grade used by the world’s industrial fabricators. This European standard grade  has replaced the BS1501 and DIN17155 specification. The material, which is suited for elevated temperature service, is normally  found in the  oil & gas, petrochemical and chemical industry.

The specification EN 10028:2 covers a range of non-alloy and alloy steels with specified elevated temperature properties intended for pressure purposes. EN 10028:2 P265GH is steel for pressure purposes (P) with minimum yield strength of 265 MPa (265).


Chemical Composition  %   of grade   P265GH (1.0425)

Element
%
Element
%
Carbon (C)
≤0.20
Silicon (Si)
≤0.40
Manganese (Mn)
0.80 to 1.40
Phosphorous (P) (max)
0.025
Sulphur (S) (max)
0.015
Aluminium (Al)
≤0.020
Nitrogen (N)
≤0.012
Chromium (Cr)
≤0.30
Copper (Cu)
≤0.30
Molybdenum (Mo)
≤0.08
Niobium (Nb)
≤0.020
Nickel (Ni)
≤0.30
Titanium (Ti) (max)
0.03
Vanadium (Vi)
≤0.02

 

Mechanical properties of grade   P265GH (1.0425)

Nominal thickness (mm): to 100 100 – 150 150 – 250
Rm – Tensile strength (MPa) (+N) 410-530 400-530 390-530

 

Nominal thickness (mm): to 16 16 – 40 40 – 60 60 – 100 100 – 150 150 – 250
ReH – Minimum yield strength (MPa) (+N) 265 255 245 215 200 185

 

KV – Impact energy (J) transverse, (+N) -20°
27

27
+20°
40

 

KV - Impact energy (J) longitud., -10°
28

40
+20°
47

 

A – Min. elongation at fracture (%) (+N) 22-23

 

A – Min. elongation at fracture (%) transverse, (+N) 21

 

Equivalent grades of grade   P265GH (1.0425)

USA
Germany
Japan
France
England
Italy
Spain
Sweden
Poland
Czechia
Austria
Russia
Inter
-
DIN,WNr
JIS
AFNOR
BS
UNI
UNE
SS
PN
CSN
ONORM
GOST
ISO
A414E
1.0425
SG295
A42AP
151-400
Fe410-1KW
A42RCI
1430
St41K
11416
St41KW
16K
F5
A516Gr.60
HII
A42CP
161-430
Fe410KG
1431
11418
20K
F7
Gr.A
St45.8
A42F
161Gr.400
Fe410KT
164Gr.400
P265GH
244Gr.400

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