EN 10025-3:2019 S355N Steel: Specifications & Listings

EN 10025-3:2019 S355N: S355N: weldable fine grain structural steel, normalized or normalized rolled. Specified in EN 10025-3:2019.

Category: Structural Steel
Grade Details
GradeEN 10025-3:2019 S355N
Standard EN 10025-3:2019
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
EN 10025-3 S355NL EN 10025-3:2019 Strong Match
GB/T 1591 Q355ND GB/T 1591:2018 Strong Match
GB/T 1591 Q355NC GB/T 1591:2018 Strong Match
GB/T 1591 Q355NB GB/T 1591:2018 Strong Match
GB/T 1591 Q355NE GB/T 1591:2018 Strong Match
GB/T 1591 Q355NF GB/T 1591:2018 Strong Match
GB/T 1591 Q355MD GB/T 1591:2018 Strong Match
GB/T 1591 Q355MC GB/T 1591:2018 Strong Match
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C Si Mn P S Nb V Ni N Al Ti Cr Mo Cu
<=0.20 <=0.50 0.90-1.65 <=0.030 <=0.025 <=0.05 <=0.12 <=0.50 <=0.015 >=0.02 <=0.05 <=0.30 <=0.10 <=0.55
Mechanical Properties
Tensile Strength 470-630 MPa
Yield Strength >=355 MPa
Elongation >=22%
Condition Normalized or normalized rolled (N), nominal thickness up to 16 mm (tensile strength up to 100 mm), Table 4

More data from EN 10025-3:2019

From the standard
Yield strength by thickness 8 thickness ranges
Nominal thickness (mm)Yield strength ReH, min (MPa)
up to 16355
over 16 to 40345
over 40 to 63335
over 63 to 80325
over 80 to 100315
over 100 to 150295
over 150 to 200285
over 200 to 250275
For plate, strip and wide flats of width 600 mm and over the values apply transverse to the rolling direction; for other products parallel.
Source: EN 10025-3:2019, Table 4
Tensile strength by thickness 3 thickness ranges
Nominal thickness (mm)Tensile strength Rm (MPa)
up to 100470 to 630
over 100 to 200450 to 600
over 200 to 250450 to 600
Delivery condition normalized or normalized rolled (N).
Source: EN 10025-3:2019, Table 4
Elongation by thickness 6 thickness ranges, L0 = 5.65 sqrt(S0)
Nominal thickness (mm)Elongation A, min (%)
up to 1622
over 16 to 4022
over 40 to 6322
over 63 to 8021
over 80 to 20021
over 200 to 25021
Source: EN 10025-3:2019, Table 4
Impact energy KV2, min (J) Charpy V-notch, longitudinal and transverse
Test piece+20 deg C0 deg C-10 deg C-20 deg C-30 deg C-40 deg C-50 deg C
Longitudinal55474340---
Transverse (Option 30)31272420---
Values reduced in direct proportion for subsized specimens. The 40 J at -20 deg C corresponds to 27 J at -30 deg C.
Source: EN 10025-3:2019, Tables 5 and 6

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