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    S355 European Standard Steel

    S355 EN 10025 : 2004 Standard Structural Steel Plate

    S355 structural steel plate is a high-strength low-alloy European standard structural steel covering four of the six "Parts" within the EN 10025 – 2004 standard. With minimum yield of 50,000 KSI, it meets requirements in chemistry and physical properties similar to ASTM A572 / 709. Careful attention should always be placed on the specific variation of S355 required if considering substitute material.

    S355 is used in almost every facet of structural fabrication. Typical applications include:

    • Structural steelworks: bridge components, components for offshore structures
    • Power plants
    • Mining and earth-moving equipment
    • Load-handling equipment
    • Wind tower components

    For more information, please contact a Leeco Steel representative.

    Part 2 - Non-Alloy Structural Steels
    S… Structural Steel
    E... Engineering Steel
    355 Minimum yield strength (Reh) in Mpa up to 16mm
    …JR.. Charpy V-notch (Longitudinal) 27 J @ +20 Celsius
    …JO.. Charpy V-notch (Longitudinal) 27 J @ 0 Celsius
    …J2.. Charpy V-notch (Longitudinal) 27 J @ -20 Celsius
    …K2.. Charpy V-notch (Longitudinal) 40 J @ +20 Celsius
    …+AR Supply condition "As Rolled"
    ...+N Supply condition "Normalized or Normalized Rolled"
    Additional Options
    …Z.. Grade with improved properties perpendicular to the surface
    Part 3 - Normalised / Normalised Rolled Weldable Fine Grain Structural Steel
    S… Structural Steel
    355 Minimum yield strength (Reh) in Mpa up to 16mm
    ...N.. Longitudinal Charpy V-notch impacts at a temperature not lower than minus 20 Celsius
    ...NL.. Longitudinal Charpy V-notch impacts at a temperature not lower than minus 50 Celsius
    Additional Options
    …Z.. Grade with improved properties perpendicular to the surface
    Part 4 - Thermomechanically Rolled Weldable Fine Grain Structural Steels
    S… Structural Steel
    355 Minimum yield strength (Reh) in Mpa up to 16mm
    ...M.. Longitudinal Charpy V-notch impacts at a temperature not lower than minus 20 Celsius
    ...ML.. Longitudinal Charpy V-notch impacts at a temperature not lower than minus 50 Celsius
    Additional Options
    …Z.. Grade with improved properties perpendicular to the surface
    Part 4 - Thermomechanically Rolled Weldable Fine Grain Structural Steels
    S… Structural Steel
    355 Minimum yield strength (Reh) in Mpa up to 16mm
    …JO.. Charpy V-notch (Longitudinal) 27 J @ 0 Celsius
    …J2.. Charpy V-notch (Longitudinal) 27 J @ -20 Celsius
    …K2.. Charpy V-notch (Longitudinal) 40 J @ +20 Celsius
    ...W.. Improved Atmospheric Corrosion Resistance
    ...P.. Greater phosphorus content (grade S355 only)
    ...+AR Supply condition "As Rolled"
    ...+N Supply condition "Normalized or Normalized Rolled"
    Additional Options
    …Z.. Grade with improved properties perpendicular to the surface
    Mechanical Properties (1MPa =
    145.03 PSI)
    Grade Yield Strength (Mpa) in Nom. Thicknesses (mm)
      >3 - <16 >16 - <40 >40 - <63 >63- <80 >80 - <100 >100 - <150 >150 - <200 >200 - <250 >250 - <400
    S355JR 355 min. 345 min. 335 min. 325 min. 315 min. 295 min. 285 min. 275 min. -
    S355JO 355 min. 345 min. 335 min. 325 min. 315 min. 295 min. 285 min. 275 min. -
    S355J2 355 min. 345 min. 335 min. 325 min. 315 min. 295 min. 285 min. 275 min. 265 min.
    S355K2 355 min. 345 min. 335 min. 325 min. 315 min. 295 min. 285 min. 275 min. 265 min.
    S355N 355 min. 345 min. 335 min. 325 min. 315 min. 295 min. 285 min. 275 min.  
    S355NL 355 min. 345 min. 335 min. 325 min. 315 min. 295 min. 285 min. 275 min.  
    S355M 355 min. 345 min. 335 min. 325 min. 325 min. 295 min.      
    S355ML 355 min. 345 min. 335 min. 325 min. 325 min. 295 min.      
    S355J0WP 355 min. 345 min. - - - -      
    S355J2WP 355 min. 345 min. - - - -      
    S355J0W 355 min. 345 min. 335 min. 325 min. 315 min. 295 min.      
    Grade Tensile Strength (Mpa) in Nom. Thicknesses (mm)
      >3 - <16 >16 - <40 >40 - <63 >63- <80 >80 - <100 >100 - <150 >150 - <200 >200 - <250 >250 - <400
    S355JR 470 - 630 470 - 630 470 - 630 470 - 630 470 - 630 450 - 600 450 - 600 450 - 600 -
    S355JO 470 - 630 470 - 630 470 - 630 470 - 630 470 - 630 450 - 600 450 - 600 450 - 600 -
    S355J2 470 - 630 470 - 630 470 - 630 470 - 630 470 - 630 450 - 600 450 - 600 450 - 600 450 - 600
    S355K2 470 - 630 470 - 630 470 - 630 470 - 630 470 - 630 450 - 600 450 - 600 450 - 600 450 - 600
    S355N 470 - 630 470 - 630 470 - 630 470 - 630 470 - 630 450 - 600 450 - 600 450 - 600 -
    S355NL 470 - 630 470 - 630 470 - 630 470 - 630 470 - 630 450 - 600 450 - 600 450 - 600 -
    S355M 470 - 630 470 - 630 450 - 610 440 - 600 440 - 600 430 - 590 - - -
    S355ML 470 - 630 470 - 630 450 - 610 440 - 600 325 440 - 600. 430 - 590 - - -
    S355J0WP 470 - 630 470 - 630 - - - - - - -
    S355J2WP 470 - 630 470 - 630 - - - - - - -
    S355J0W 470 - 630 470 - 630 470 - 630 470 - 630 470 - 630 450 - 600 - - -

     

    Chemical Composition
    Grade Thickness (mm) C Mn P S Si Cr Ni Mo V Al Cu Ti Nb N
    S355JR <40 .24 max 1.60 max .035 max .035 max .55 max - - - - - .55 max - - .012 max
    S355JR 41 - <150 .24 max 1.60 max .035 max .035 max .55 max - - - - - .55 max - - .012 max
    S355JR 151 - <250 .24 max 1.60 max .035 max .035 max .55 max - - - - - .55 max - - .012 max
    S355JO <40 .20 max 1.60 max .030 max .030 max .55 max - - - - - .55 max - - .012 max
    S355JO 41 - <150 .22 max 1.60 max .030 max .030 max .55 max - - - - - .55 max - - .012 max
    S355JO 151 - <250 .22 max 1.60 max .030 max .030 max .55 max - - - - - .55 max - - .012 max
    S355J2 <40 .20 max 1.60 max .025 max .025 max .55 max - - - - - .55 max - - -
    S355J2 41 - <150 .22 max 1.60 max .025 max .025 max .55 max - - - - - .55 max - - -
    S355J2 151 - <250 .22 max 1.60 max .025 max .025 max .55 max - - - - - .55 max - - -
    S355J2 >250 - <400 .22 max 1.60 max .025 max .025 max .55 max - - - - - .55 max - - -
    S355K2 <40 .20 max 1.60 max .025 max .025 max .55 max - - - - - .55 max - - -
    S355K2 41 - <150 .22 max 1.60 max .025 max .025 max .55 max - - - - - .55 max - - -
    S355K2 151 - <250 .22 max 1.60 max .025 max .025 max .55 max - - - - - .55 max - - -
    S355K2 >250 - <400 .22 max 1.60 max .025 max .025 max .55 max - - - - - .55 max - - -
    S355N <250 .20 max .90 - 1.65 .030 max .025 max .50 max .030 max .50 max .10 max .12 max .02 min .55 max .05 max .05 max .015 max
    S355NL <250 .18 max .90 - 1.65 .025 max .020 max .50 max .030 max .50 max .10 max .12 max .02 min .55 max .05 max .05 max .015 max
    S355M <150 .14 max 1.60 max .030 max .025 max .50 max .030 max .50 max .10 max .10 max .02 min .55 max .05 max .05 max .015 max
    S355ML <150 .14 max 1.60 max .025 max .020 max .50 max .030 max .50 max .10 max .10 max .02 min .55 max .05 max .05 max .015 max
    S355J0WP <40 .12 max 1.0 max .06 - .15 .035 max .75 max   - - - - .25 - .55 - - .009 max
    S355J2WP <40 .12 max 1.0 max .06 - .15 .030 max .75 max   - - - - .25 - .55 - - -
    S355J0W <150 .16 max .50 - 1.50 .035 max .035 max .50 max   - - - - .25 - .55 - - .009 max
                                   

     

    Charpy V-Notch Testing
      Elongation in Nom. Thicknesses (mm)      
    Grade >3 - <16 >16 - <40 >40 - <63 >63 - <80 >80 - <100 >100 - <150 >150 - <200 >200 - <250 >250 - <400 Grain @ Degrees Min. Absorbed Energy
    S355JR 22 min (L) 21 min (L) 20 min (L) 18 min (L) 17 min (L) - - +20 Celsius >27 J
    S355JO 22 min (L) 21 min (L) 20 min (L) 18 min (L) 17 min (L) - - 0 Celsius 27 J
    S355J2 22 min (L) 21 min (L) 20 min (L) 18 min (L) 17 min (L) - -20 Celsius 27 J
    S355K2 22 min (L) 21 min (L) 20 min (L) 18 min (L) 17 min (L) - -20 Celsius 40 J
    S355N 22 min (Longitudinal) 21 min (Longitudinal) - 6 min -20 Celsius 40 J
    S355NL 22 min (Longitudinal) 21 min (Longitudinal) - 6 min -50 Celsius 27 J
    S355M 22 min (Longitudinal) - - - 6 min -20 Celsius 40 J
    S355ML 22 min (Longitudinal) - - - 6 min -50 Celsius 27 J
    S355J0WP 22 min (L) - - - - - - - - 0 Celsius 27 J
    S355J2WP 22 min (L) - - - - - - - - -20 Celsius 27 J
    S355J0W 20 min (Longitudinal) 18 min (L) - - - - 0 Celsius 27 J