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EN 10210 standard Seamless Pipe S275NH and Seamless tube S275NLH
Source:Xin Steel Industry   Date:2021/10/27

EN 10210 standard Seamless Pipe S275NH and Seamless tube S275NLH,seamless pipe S275NLH are fine grain steel materials with low temperature charp impact test.Seamless pipe S275NH shall be done impact test at -20 Degree centigrade with minimum energy 27J,however S275NLH shall be done impact test at -50 Degree centigrade.Under specification EN 10210,Seamless Pipe S275NH and Seamless tube S275NLH both delivery with Normalized heat treatment after hot finishing.


In standard EN 10210,steel grades S275NH and S275NLH can be seamless steel pipe and welded steel pipe,S275NH rectangular tube,S275NH square tube,S275NLH rectangular hollow section,S275NLH square hollow section.When delivery seamless pipe S275NH,the marking on pipe surface shall contains EN 10210-S275NH SIZE HEAT NUMBER and other customer special demands markings such as PO number,Original,shipping mark,etc.


Comparasion with EN 10210 seamless pipe S275NH and seamless pipe S275NLH:

 

S275NH S275NLH
Chemical composition: Heat Analysis Max%
Standard
Grade
C
Mn
P
S
Si
Cu
Nb
Ti
Cr
Ni
Mo
Alt min.
V
N
EN 10210
S275NH
0.20
0.5-1.4
0.035
0.03
0.40
0.35
0.05
0.03
0.30
0.30
0.10
0.02
0.05
0.015
EN 10210
S275NLH
0.20
0.5-1.4
0.03
0.025
0.40
0.35
0.05
0.03
0.30
0.30
0.10
0.02
0.05
0.015
Mechanical Properties:
Thickness
Yield strength
Tensile strength
Mpa  Min.
Mpa
EN 10210
S275NH
T≤16
275
370-540
EN 10210
S275NLH
T≤16
275
370-540