S355JR steel is a low carbon steel whose specifications offer high yield strength, and S355JR steel is under structural steel for general purpose with a minimum yield strength of 355 N/mm².
EN10025 S355JR material number is 1.0045, and JR symbol 20 temperature impact test. S355 structural grade (S) carries minimum yield strength of 355 N/mm²m, the JR designation confirms that the steel has undergone longitudinal Chary V-Notch impact testing at 27J (Joules) at room temperature. Other Charpy designations include J0, J2 and K2.
Dimensions for S355JR steel:
Thickness:1.5mm—450mm
Width:1200mm—4200mm
Length: 3000mm—18000mm
Delivery conditions for S355JR Steel:
Heat treatment facilities for hot rolled, controlled rolling, normalizing, annealing, tempering
S355JR Chemical Composition Analysis (max) %
| Grade |
C%
|
Si %
|
Mn %
|
P %
|
S %
|
N %
|
Cu %
|
|
S355JR
|
0.270
|
0.600
|
1.700
|
0.045
|
0.045
|
0.014
|
0.060
|
S355JR Mechanical Properties.
| Grade |
Thickness (mm)
|
Min Yield (Mpa)
|
Tensile (Mpa)
|
Elongation (%)
|
Min Impact Energy
|
|
S355JR
|
8mm-100mm
|
315Mpa-355Mpa
|
450-630Mpa
|
18-20%
|
20
|
27J
|
|
101mm-200mm
|
285-295Mpa
|
450-600Mpa
|
18%
|
20
|
27J
|
|
201mm-400mm
|
275Mpa
|
-
|
17%
|
20
|
27J
|
|
The min impact energy is longitudinal energy
|
Typical applications for S355JR steel:
commonly supplied in rolled condition, S355JR steel is used widely in the most demanding environments(such as the offshore industry), the construction and manufacturing industries.
Corresponding steel grades to S355JR
BS 4360 50 B
JIS G3101 SS 490
NFA 35-501 E 36-2
UNI 7070 Fe 510 B
UNE 36.080 AE 355 B
ASTM A 572 Gr. 50 - A 678 Gr. A
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