Category: ‘Structural Steel’
Studies of the basic structural changes that occur when a metal is subjected to cyclic stress have found it convenient to divide the fatigue process into the following stages:
Crack initiation includes the early development of f... Read More...
Most steels used throughout Europe are specified to comply with the European standard EN 10025. However, many national standards also remain in force.
Typical grades are described as 'S275J2' or 'S355K2W'. In these examples, ... Read More...
Grade
Position of samples1)
Min. total elongation [%]
L0 = 80 mm
L0 = 5,65 √S0
1,5 < e2) ≤ 2
2 < e2) ≤ 2,5
2,5 < e2) < 3
3 ≤ e2) ≤ 25
S235JR
l/t
19/17
20/18
21/... Read More...
Grade
Yield strength
Tensile strength
Min. notch impact energy2)
Temperature
MPa
MPa
J
°C
e3) ≤ 16
e3) > 16
e3) < 3
e3) ≥ 3
S235JR
≥ 235
≥ 225
360 - 510
360 - 510
2... Read More...
Chemical composition in percent by weight [%] (Heat analysis)
Grade
C
Si
Mn
P
S
N 1)
CE 2)
max.
max.
max.
max.
max.
max.
max.
S235JR
0,17
-
1,40
0,035
0,035
0,012
0,35
S235J0
0,17
-
... Read More...
Europe
Material no.
D
F
I
GB
E
USA
J
FK1)
EN
10025-2
DIN
17100
NFA
35-501
UNI
7070
BS
4360
UNE
36 080
ASTM
JIS G
3101
S235JR
1.0038
St 37-2
E 24-2
Fe 360 B
-
AE 235 B
... Read More...
These general structural steel grades are characterised by a minimum yield strength of 185 - 360 MPa. Suitability for cold forming such as bending, folding, bordering and flanging etc. can be ordered separately. The user of these... Read More...
They contain over 5 % of alloying elements. Medium alloy steel with 2.5-6.0% of alloying elements.
Medium alloy Structural Steels:
They contain over 5 % of alloying elements.
High alloy Structural Steels:
They contai... Read More...
These steels are used for parts manufactured for application involving dynamic loading where hardenability, ductility, and fatigue strength are important. Since most structures are not heat treated, there is no need for hardenabi... Read More...
Structural steels are divided into three groups.
Low alloy Structural Steels:
Medium alloy Structural Steels:
High alloy Structural Steels:
Alloy structural steels have better mechanical properties than carbon steels... Read More...