S355NThese fine-grain structural steel grades are characterised by a minimum yield strength of 355 N/mm2, which is impact tested in the transverse direction at -20 deg C (N).   By good weldability and high resistance to brittle cracking. These grades are used above all for manufacturing vessels for pressurised gas (LPG, butane and propane tanks), pressure vessels, steam boiler parts, pressure piping, compressors ect.

 

Chemical composition %   of grade   P355N (1.0562)

C
Si
Mn
Ni
P
S
Cr
Mo
V
N
Nb
Ti
Al
Cu
-
max 0.18
max 0.5
1.1 – 1.7
max 0.5
max 0.025
max 0.015
max 0.3
max 0.08
max 0.1
max 0.012
max 0.05
max 0.03
max 0.02
max 0.3
Nb+
Ti+
V < 0.12

 

Mechanical properties of grade   P355N (1.0562)

Nominal thickness (mm):
to 60
60 – 100
100 – 150
150 – 250
Rm – Tensile strength (MPa) (+N)
490-630
470-610
460-600
450-590

 

Nominal thickness (mm):
to 16
16 – 40
40 – 60
60 – 100
100 – 150
150 – 250
ReH – Minimum yield strength (MPa) (+N)
355
345
335
315
305
295

 

KV – Impact energy (J) transverse, (+N)
-20°
+20°
27-30
35-40
39-50
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)
22
21

 


Equivalent grades of grade   P355N (1.0562)

USA
Germany
Japan
France
England
Italy
Spain
China
Sweden
Finland
Russia
Inter
-
DIN,WNr
JIS
AFNOR
BS
UNI
UNE
GB
SS
SFS
GOST
ISO
A537CL1
StE355
SM490B
A510AP
223Gr.490
FeE355KG
AE355KG
20
2106
Fe355DP
15GF
E355
E355R
50DD

 

Supplementary Technology

HIC Test | NACE MR0175 | Z15 | Z25 | Z35 | S1 | S2 | S3 | S4.1|S5 | S6 | S7 | S8 | S9| S11 | S12 | S14 | S17|

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