S355JR Unalloyed Steel Sheet
Carbon steel sheet, grade S355JR, complies with European standard EN10025-2. It is the most common type of structural steel that does not stand out with special properties. It has a high content of carbon, manganese and copper, which largely determines its properties.
Special properties
EN10025-2 steel High hardness , resistance to significant mechanical stress and high temperatures, strength and durability. Indicators of the strength of the material increase, with an increase in the proportion of carbon in the composition. True, at the same time, weldability deteriorates, since this is fraught with the formation of hot cracks on the seam. In the normal state, carbon heat-resistant steels are easily welded using wire and large cross-section electrodes, as well as consumable mouthpieces.
Applications
Affordable steel price per sheet contributes to the considerable popularity of the material.
Carbon sheet steel, S355JR grades, is successfully used in mechanical engineering and construction, for the manufacture of various parts operating in the high temperature zone, welded and non-welded structures
Chemical composition of steel S355J2
C
|
Si
|
Mn
|
P
|
S
|
Cu
|
Fe
|
<0,20
|
<0.55
|
< 1.60
|
<0.025
|
<0.025
|
<0.55
|
Other
|
Mechanical properties of steel S355J2
Nominal thickness (mm)
|
Minimum Yield Strength, Ren(MPa)
|
Tensile strength, Rm (MPa)
|
Brinell hardness, HB (MPa)
|
< 3
|
355
|
510-680
|
152-202
|
> 3 ≤ 16
|
355
|
470-630
|
147-187
|
> 16 ≤ 40
|
345
|
470-630
|
147-187
|
> 40 ≤ 63
|
335
|
470-630
|
147-187
|
> 63 ≤ 80
|
325
|
470-630
|
147-187
|
> 80 ≤ 100
|
315
|
470-630
|
147-187
|
> 100 ≤ 150
|
295
|
450-600
|
133-179
|
> 150 ≤ 200
|
285
|
450-600
|
133-179
|
> 200 ≤ 250
|
275
|
450-600
|
133-179
|
> 250 ≤ 400
|
265
|
450-600
|
133-179
|