-
The demand for reliable materials in cryogenic service applications has increased significantly with the rapid growth of LNG terminals, industrial gas storage facilities, and low-temperature pressure vessels.2026-06-24
-
As the global demand for liquefied natural gas (LNG) continues to grow, the need for reliable materials for cryogenic storage systems has become increasingly important.2026-06-18
-
For engineers specifying materials for cryogenic pressure vessels, finding the balance between strength and ductility at sub-zero temperatures is challenging.2026-06-12
-
In industries where equipment must operate reliably under freezing or cryogenic conditions, material selection becomes a matter of safety and structural integrity.2026-06-01
-
While both ASTM A203 Grade B and ASTM A106 Grade B serve critical roles in industrial applications, they are fundamentally different in composition, purpose, and performance.2026-06-01
P355N steel, P355N steel plate
P355N steel grade is one of grade in En10028-3, P355N EN steel is a Weldable normalized fine grained pressure vessel steels,characterized by a minimum yield strength of 275 - 460 MPa, by good weldability and high resistance to brittle cracking. Weldable normalized fine grained pressure vessel steels are used above all for manufacturing vessels for pressure gas(LPG, butane and propane tanks), pressure vessels, steam boiler parts, pressure piping, compressors etc..
P355N steel plate specification:
Thickness: 6mm to 300mm,
Width: 1500mm to 4050mm,
Length: 3000mm to 15000mm
|
P355N Chemical Composition |
|||||||||
|
Grade |
The Element Max (%) |
||||||||
|
C |
Si |
Mn |
P |
S |
Al(min) |
N |
|||
|
0.20 |
0.50 |
0.9-1.70 |
0.03 |
0.025 |
|
0.02 |
|||
|
Cr |
Cu |
Mo |
Nb |
Ni |
Ti |
V |
|||
|
0.30 |
0.30 |
0.08 |
0.005 |
0.50 |
0.03 |
0.10 |
|||
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
|
Grade |
|
P355N Mechanical Property |
|||||||
|
Thickness |
Yield |
Tensile |
Elongation |
Impact Energy(KV J) min |
|||||
|
mm |
Min Mpa |
Mpa |
Min % |
-20° |
0° |
+20° |
|||
|
t≤ 16 |
355 |
490-630 |
22 |
40 |
47 |
55 |
|||
|
16< t ≤35 |
355 |
490-630 |
22 |
40 |
47 |
55 |
|||
|
35< t ≤50 |
345 |
490-630 |
22 |
40 |
47 |
55 |
|||
|
50<t≤70 |
325 |
490-630 |
22 |
40 |
47 |
55 |
|||
|
70<t ≤100 |
315 |
470-610 |
21 |
40 |
47 |
55 |
|||
|
100< t ≤150 |
295 |
450-590 |
21 |
40 |
47 |
55 |
|||
We are specialized in supplying EN10028-3 steel plate in grade P355N. For more information of P355N steel plates, please feel free to contact us by email or calling to us.


