P275NH,P275NL1 steel plate for Pressure Vessels
Source:Yusheng steel
Under steel standard EN10028_3,steel plate P275NH and P275NL1 are mainly used to build pressure vessels and boilers and
liquid tanks.For these two pressure vessel steels P275NH and P275NL1,heat treatment for Normalized have to be done for
steel plates after production.Boiler steel plate P275NH shall be done low temperature impacting at minus 20 centi degree,and
boiler steel plate P275NL1 have to be done this test at minus 40 centi degree on transverse direction.
For guarantee the usage safety of pressure vessel steel plates,steel plates P275NH,P275NL2 would accept ultrasonic examination
after rolling.The standard mainly be according to EN 10160,also adopt to ASTM A435/A435M,ASTM A577/A577M and
A578/A578M.The end user can suggest the different levels for this test according to their engineers’drawing.
Mechanical properties for P275NH pressure vessel steel plate:
Yield Strength (Min Mpa) |
Tensile Strength ( Mpa) | ||||
t≤16 |
16<t≤40 |
40<t |
t≤60 |
60<t≤100 |
100<t |
275 |
265 |
255 |
390/510 |
370/490 |
360/480 |
Chemical composition of cast analysis for P275NH boiler steel plate (Max %):
C |
Si |
Mn |
P |
S |
Al min |
N |
Cr |
0.16 |
0.40 |
0.80/1.50 |
0.025 |
0.015 |
0.020 |
0.012 |
0.30 |
Cu |
Mo |
Nb |
Ni |
Ti |
V |
Ni+Ti+V | |
0.30 |
0.08 |
0.05 |
0.50 |
0.03 |
0.05 |
0.05 |
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