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S355JR Carbon Steel Plate

S355JR Carbon Steel Plate Introduction

S355 offers high yield and tensile strength and is supplied with a variety of treatments and test options to ensure that it is a highly usable steel in your various projects.

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.

These grades of steel are intended for structural work where no significant forming or bending must be done. These grades 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.

The grade designations of SANS 50025 / EN10025-2 refer to the minimum yield strength of each grade for thicknesses less than or equalto 16mm. The steel should be selected in accordance with the strength requirements.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.

Properties of S355JR Carbon Steel Plate

Chemical Composition(max %) of S355JR

Grade

Max C content for t in mm

Mn max

Si max

P max

S max

Cu max

N max

t ≤ 16

>16 t ≤

t >40

S275JR

0.21

0.21

0.22

1.5

-

0.035

0.035

0.55

0.012

S355JR

0.24

0.24

0.24

1.6

0.55

0.035

0.035

0.55

0.012

S355JO

0.20

0.20

0.22

1.6

0.55

0.035

0.035

0.55

0.012


Mechanical Properties of S355JR

Grade

Yield (MPa)min

Tensile (MPa)min

Charpy V - notch longitudinal

 

Strength at t = 16mm

Temp ( °C)

Energy (J) t =16mm

S275JR

275

410/560

20

27

S355JR

355

470/630

20

27

S355JO

355

470/630

0

27


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

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Application Field

Oil & Gas
Oil & Gas
Chemical Industry
Chemical Industry
Marine Engineering
Marine Engineering
Construction Industry
Construction Industry
Power Generation
Power Generation
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Machinery industry