S275JR as rolled steel I can be manufactured hot rolled or cold drown, and If the material is normalised then this will be indicated by a '+N' appearing .
The JR suffixes in steel grade S275JR refer to different impact requirements. An average impact energy value of 27 Joules must be achieved on full size specimens in the longitudinal direction in all applicable cases.
The steel should be selected in accordance with the strength requirements as shown in Table 2.The JR, J0 & J2 suffixes refer to different impact requirements. An average impact energy value of 27 Joules must be achieved on full size specimens in the longitudinal direction in all applicable cases
S275JR as rolled steel Chemical composition %,max .
Grade |
C
|
Si
|
Mn
|
P
|
S
|
N
|
Cu
|
CEV
|
|
S275JR
|
0.22
|
0.55
|
1.5
|
0.04
|
0.04
|
0.012
|
0.55
|
0.47
|
S275JR as rolled steel mechanical properties
Yield (MPa) min, 275
Tensile (MPa) min, 410 - 560
Charpy V-notch longitudinal: 20 Temp(℃) ， 27 Energy (J)
S275JR as rolled steel typical applications
S35 JR steel can be bolted, riveted and welded in a full range of structural and fabricated items including bridges, box girders, cranes and other general structural projects.
Corresponding steel grades to S275JR
JIS SM490A/ SS490
AFNOR E36-2
BS 50B
HG 350W /350WT
EN Fe510B
GB Q345C
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