Under the standard EN10028-3,steel plate P275NH and P275N shall be both under Normalized delivery condition when processing.These steel grade P275NH and P275N mainly used in pressure vessels and boilers differ from other carbon_manganese structural steel plates owning to its high resistance to pressure at all temperatures when usage.
Besides the Normalized,impacting test shall be done when rolling at minus 20 centi degree temperature with minimum 30J energy on transverse direction,and with minimum 45J energy on longitudinal direction.About our rolling thickness range for steel P275N and P275NH is 8mm-350mm,and guarantee the steel property when delivery.Each plate shall be issued one Mill test certificate and indicate the values for chemical composition and mechanical property.Now we give you our rolling specificaitons of Chemical analysis for steel plate P275NH as belows:
|
Grade
|
Chemical Composition Max Cast Analysis
|
|
|
C
|
Si
|
Mn
|
P
|
S
|
Al min
|
N
|
Cr
|
|
P275NH
|
0.16
|
0.40
|
0.80-1.50
|
0.025
|
0.015
|
0.020
|
0.012
|
0.30
|
|
|
Cu
|
Mo
|
Nb
|
Ni
|
Ti
|
V
|
Nb+Ti+V
|
|
P275NH
|
0.30
|
0.08
|
0.05
|
0.50
|
0.03
|
0.05
|
0.05
|
In advantage of our widest steel resources in china,BBN Steel insist on offering the best quality and fast delivery time of S275NH and S275N steel plate to our vast customers from domestic and overseas.
