S275N Steel Grade, Mechanical Properties, Chemical Composition, Grade Equivalent

Standard: EN 10025-3 :2004 European standard for hot-rolled structural steel. Part 3 - Normalised/normalised rolled weldable fine grain structural steels.

Steel grade: S275N ;

Number: 1.0490 .

These steels are used for welded parts that have to withstand high levels of strain. Typical applications are bridges, pylons and other architectural structures.

The table below show the mechanical properties of grade S275N

 
Minimum yield strength Reh
MPa
Tensile strength Rm
MPa
Minimum elongation - A
Lo = 5,65 * √So (%)
Steel grade
Nominal thickness
mm
Nominal thickness
mm
Nominal thickness
mm
 
≤16
>16
≤40
>40
≤63
>63
≤80
>80
≤100
>100
≤150
>150
≤200
>200
≤250
≤100
>100
≤200
 >200
≤250
≤16
>16
≤40
>40
≤63
>63
≤80
 >80
≤200		 >200
≤250
S275N
275
265
255
245
235
225
215
205
670-830
650-830
 350-480
24
24
24
23
23
23

Notch impact test

Temperature
°C
-20
-10
0
+20
Min. absorbed energy
J
40
43
47
55

The table below show the chemical composition of grade S275N

 
Ladle analysis.
Nominal Thickness 5 - 80 mm S - sulphur content of 0,010 % max. can be agreed in the order for all products with a thickness of ? 16 mm intended for railway construction.
The minimum value for the Al total content shall not apply if the steel contains sufficient quantities of nitrogen-fixing elements.
CEV maximum carbon equivalent value CEV = C + Mn / 6 + (Cr + Mo + V) / 5 + (Cu + Ni) / 15
Steel grade
C
max.
%
Si
max.
%
Mn
%
P
max.
%
S
max.
%
N
max.
%
Al
total
%
Cu
max.
%
Cr
max.
%
Ni
max.
%
Mo
max.
%
Nb
max.
%
V
max.
%
Ti
max.
%
CEV
max. %
S275N
0,18
0,40
0,50 - 1,50
0,030
0,025
0,015
0,02
0,55
0,30
0,30
0,10
0,050
0,05
0,05
0,40

S275N Steel Grade Equivalent Table

Germany
DIN,WNr
DIN 17102:1983
England
BS
Italy
UNI
StE285
43DD
FeE275KGN

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