Roymech engineering encyclopedia

British Standard Structural Steels – BS EN 10025


This page provides an overview of BS EN 10025 structural steels, including chemical composition, mechanical properties, and strength data for common grades such as S235, S275, and S355. The information is intended for general guidance and preliminary design reference.

Important Notes:
All information on this page has been interpreted from the relevent standards, books, other web sites, andl leaflets.     This information is of a general nature for initial guidance.    Selection of materials for design use must be by communication with the suppliers and by reference to the relevant standards.
The tables below include for composition , proof strength , tensile strength and elongation.    The mechanical properties are generally related to room temperature     The information is not comprehensive and must be used with extreme care.    The relevant standards include detailed notes on the conditions relevant to the properties and also a large quantity of detail information on other properties including hardness values impact values and properties at higher and lower temperatures

Contents

Notation

A = % elongation at fracture
R eH = ReH Minimum Yield strength ( MPa )
R p0,2 = 0,2 % proof strength ( MPa )
Rm = Tensile strength ( MPa )
HV = Hardness value (Vickers)
t = Product thickness for specified properties ( mm)
+N = normalised
+NT = normalised and tempered
+QT = quenched and tempered
C = Cold rolled.
H = Hot rolled strip;
P = Hot rolled plate
FN = (Deoxidation method) Rimming steels not permitted
FF = (Deoxidation method)Fully killed steel






BS EN 10025-2 Hot rolled products of non-alloy structural steels


Technical delivery conditions for non-alloy structural steels




Product Chemical composition

Name Number Deoxidation Method C % For thickness range Si max Mn max P max S max N max Cu max Other
  =< 16 > 16
=<40		 >40 % % % % % % %
S235JR 1.0038 FN 0,19 0,19 0,23 - 1,5 0,045 0,045 0,014 0,60 -
S235JO 1.0114 FN 0,19 0,19 0,19 - 1,5 0,040 0,040 0,014 0,60 -
S235J2 1.0117 FF 0,19 0,19 0,19 - 1,5 0,035 0,035 - 0,60 -
S275JR 1.0044 FN 0,24 0,24 0,25 - 1,6 0,045 0,045 0,014 0,60 -
S275JO 1.0143 FN 0,21 0,21 0,21 - 1,6 0,040 0,040 0,014 0,60 -
S275J2 1.0145 FF 0,21 0,21 0,21 - 1,6 0,035 0,035 - 0,60 -
S355JR 1.0045 FN 0,27 0,27 0,27 0,60 1,7 0,045 0,045 0,014 0,60 -
S355J0 1.0553 FN 0,23 0,23 0,24 0,60 1,7 0,040 0,040 0,014 0,60 -
S355J2 1.0577 FF 0,23 0,23 0,24 0,60 1,7 0,035 0,035 - 0,60 -
S355K2 1.0596 FF 0,23 0,23 0,24 0,60 1,7 0,035 0,035 - 0,60 -
S450J0 1.0590 FF 0,23 0,23 0,24 0,60 1,8 0,04 0,04 0,027 0,60 -


Basic mechanical properties at room temperature

Name Number ReH Minimum Yield strength (MPa )
for nominal thickness(mm) 		R m (MPa)
for nominal thickness (mm)
<16 =>16 >40 >63 >80 >100 >150 >200 >250 <3 =>3 >100 >150 >250
  =< 40 =< 63 =< 80 =< 100 =< 150 =< 200 =< 250 =< 400   =< 100 =< 150 <= 250 =< 400
S235JR 1.0038 235 225 215 215 215 195 185 175 - 360-510 360-510 350-500 340-490  
S235JO 1.0114 235 225 215 215 215 195 185 175 - 360-510 360-510 350-500 340-490  
S235J2 1.0117 235 225 215 215 215 195 185 175 165 360-510 360-510 350-500 340-490 330-480
S275JR 1.0044 275 265 255 245 235 225 215 205   430-580 410-560 400-540 380-540  
S275JO 1.0143 275 265 255 245 235 225 215 205 - 430-580 410-560 400-540 380-540  
S275J2 1.0145 275 265 255 245 235 225 215 205 195 430-580 410-560 400-540 380-540 380-540
S355JR 1.0045 355 345 335 325 315 295 285 275 - 510-680 470-630 450-600 450-600  
S355J0 1.0553 355 345 335 325 315 295 285 275 - 510-680 470-630 450-600 450-600  
S355J2 1.0577 355 345 335 325 315 295 285 275 265 510-680 470-630 450-600 450-600 450-600
S355K2 1.0596 355 345 335 325 315 295 285 275 265 510-680 470-630 450-600 450-600 450-600
S450J0 1.0590 450 430 410 390 380 380 - - - - 550-720 530-700 - -




BS EN 10025-3 :Hot rolled products of non-alloy structural steels


Technical delivery conditions for normalized/normalized rolled weldable fine grain structural steels



Product Chemical composition





Name Number C max Si max Mn max        P max S max Nb max V max Al tot Ti max Cr max Ni max Mo max Cu max vN max
% % % % % % % % % % % % % %
S275N 1.0490 0,20 0,45 0,45-1,60 0,035 0,030 0,060 0,070 0,015 0,060 0,35 0,35 0,13 0,60 0,017
S275NL 1.0491 0,18 0,45 0,45-1,60 0,030 0,025 0,060 0,070 0,015 0,060 0,35 0,35 0,13 0,60 0,017
S355N 1.0545 0,22 0,55 0,85-1,75 0,035 0,030 0,060 0,14 0,015 0,060 0,35 0,55 0,13 0,60 0,017
S355NL 1.0546 0,20 0,55 0,85-1,80 0,030 0,025 0,060 0,14 0,015 0,060 0,35 0,55 0,13 0,60 0,017
S420N 1.8902 0,22 0,65 0,95-1,80 0,035 0,030 0,060 0,22 0,015 0,060 0,35 0,85 0,13 0,60 0,027
S420NL 1.8912 0,22 0,65 0,95-1,80 0,030 0,025 0,060 0,22 0,015 0,060 0,35 0,85 0,13 0,60 0,027
S460N 1.8901 0,22 0,65 0,95-1,80 0,035 0,030 0,060 0,22 0,015 0,060 0,35 0,85 0,13 0,60 0,027
S460NL 1.8903 0,22 0,65 0,95-1,80 0,030 0,025 0,060 0,22 0,015 0,060 0,35 0,85 0,13 0,60 0,027


Basic mechanical properties at room temperature

Name Number R eH Minimum Yield strength (MPa)
for nominal thickness(mm) 		R m (MPa)
for nominal thickness (mm)		 A -
Elongation(min)
<16 >16 >40 >63 >80 >100 >150 >200 <100 >100 >200
  =< 40 =< 63 =< 80 =< 100 =< 150 =< 200 =< 250   =< 200 =< 250 %
S275N 1.0490 275 265 255 245 235 225 215 205 370-510 350-480 350-480 23-24
S275NL 1.0491 275 265 255 245 235 225 215 205 370-510 350-480 350-480 23-24
S355N 1.0545 355 345 335 325 315 295 285 275 470-630 450-600 450-600 21-22
S355NL 1.0546 355 345 335 325 315 295 285 275 470-630 450-600 450-600 21-22
S420N 1.8902 420 400 390 370 360 340 330 320 520-680 500-650 500-650 18-19
S420NL 1.8912 420 400 390 370 360 340 330 320 520-680 500-650 500-650 18-19
S460N 1.8901 460 440 430 410 400 380 370 - 540-720 530-710 - 17
S460NL 1.8903 460 440 430 410 400 380 370 - 540-720 530-710 - 17




BS EN 10025-4 :Technical delivery conditions for thermomechanical rolled weldable fine grain structural steels





Product Chemical composition



Name Number C max Si max Mn max P max S max Nb max V max Al tot Ti max Cr max Ni max Mo max Cu max N max
% % % % % % % % min % % % % % %
S275M 1.8818 0,15 0,55 1,60 0,035 0,030 0,06 0,10 0,015 0,06 0,35 0,35 0,13 0,60 0,17
S275ML 1.8819 0,15 0,55 1,60 0,030 0,025 0,06 0,10 0,015 0,06 0,35 0,35 0,13 0,60 0,17
S355M 18823 0,16 0,55 1,70 0,035 0,030 0,06 0,12 0,015 0,06 0,35 0,55 0,13 0,60 0,17
S355ML 1.8834 0,16 0,55 1,70 0,030 0,025 0,06 0,12 0,015 0,06 0,35 0,55 0,13 0,60 0,17
S420M 18825 0,18 0,55 1,80 0,035 0,030 0,06 0,14 0,015 0,06 0,35 0,85 0,23 0,60 0,27
S420ML 1.8836 0,18 0,55 0,17 0,030 0,025 0,06 0,14 0,015 0,06 0,35 0,85 0,23 0,60 0,27
S460M 18827 0,18 0,65 0,17 0,035 0,030 0,06 0,14 0,015 0,06 0,35 0,85 0,23 0,60 0,27
S460ML 1.8838 0,18 0,65 1,80 0,030 0,025 0,06 0,14 0,015 0,06 0,35 0,85 0,23 0,60 0,27



Basic mechanical properties at room temperature

Name Number R eH Minimum Yield strength (MPa)
for nominal thickness(mm) 		Rm (MPa)
for nominal thickness (mm)		 A.
Elongation (min)
<16 >16 >40 >63 >80 >100 <=40 >40 >63 >80 >100
  =< 40 =< 63 =< 80 =< 100 =< 120   =<63 =<80 =<80 =<120 %
S275M 1.8818 275 265 255 245 245 240 370-530 360-520 350-510 350-510 350-510 24
S275ML 1.8819 275 265 255 245 245 240 370-530 360-520 350-510 350-510 350-510 24
S355M 18823 355 345 335 325 325 320 470-630 450-610 440-600 440-600 430-590 22
S355ML 1.8834 355 345 335 325 325 320 470-630 450-610 440-600 440-600 430-590 22
S420M 18825 420 400 390 380 370 365 520-680 500-660 480-640 470-630 460-620 19
S420ML 1.8836 420 400 390 380 370 365 520-680 500-660 480-640 470-630 460-620 19
S460M 18827 460 440 430 410 400 385 540-720 530-710 510-690 500-680 490-660 17
S460ML 1.8838 460 440 430 410 400 385 540-720 530-710 510-690 500-680 490-660 17




BS EN 10025-5 :Technical delivery conditions for structural steels with improved atmospheric corrosion resistance



Product Chemical composition



Deoxidation Method
FN = Rimming steels not permitted
FF = Fully killed steel

Name Number Method;
of
Deoxidation		 C Si Mn P S N Cr Cu others
max % max % % % max % max % % %  
S235J0W 1.8958 FN 0,16 0,45 0,15-0,70 max0,040 0,040 0,010 0,35-0,85 0,20-0,60 Ni max 0,70
S235J2W 1.8961 FF 0,16 0,45 0,15-0,70 max0,040 0,035 0,010 0,35-0,85 0,20-0,60 Ni max 0,70
S355J0WP 1.8945 FN 0,15 0,80 max 1,1 0,05-0,16 0,040 0,010 0,25-1,35 0,20-0,60 Ni max 0,70
S355J2WP 1.8946 FF 0,15 0,80 max 1,1 0,05-0,16 0,035 0,010 0,25-1,35 0,20-0,60 Ni max 0,70
S355J0W 1.8959 FN 0,19 0,55 0,45-1,6 max 0,040 0,040 0,010 0,35-0,85 0,20-0,60 Ni max 0,70
S355J2W 1.8965 FF 0,19 0,55 0,45-1,6 max 0,035 0,035 0,010 0,35-0,85 0,20-0,60 Ni max 0,70
S355K2W 1.8967 FF 0,19 0,50 0,45-1,6 max 0,035 0,035 0,010 0,35-0,85 0,20-0,60 Ni max 0,70



Basic mechanical properties at room temperature

Name Number R eH Minimum Yield strength (MPa)
for nominal thickness(mm) 		Rm (MPa)
for nominal thickness (mm)		 A
Elongation (min)
<16 >16 >40 >63 >80 >100 <3 >3 >100
  =< 40 =< 63 =< 80 =< 100 =< 150   =<100 =< 150 %
S235J0W 1.8958 235 225 215 215 215 195 360-510 360-510 350-500 19-22
S235J2W 1.8961 235 225 215 215 215 195 360-510 360-510 350-500 17-22
S355J0WP 1.8945 355 345 - -     510-680 470-630 - 16-22
S355J2WP 1.8946 355 345 - -     510-680 470-630 - 14-20
S355J0W 1.8959 355 345 335 325 315 295 510-680 470-630 450-600 16-22
S355J2W 1.8965 355 345 335 325 315 295 510-680 470-630 450-600 14-20
S355K2W 1.8967 355 345 335 325 315 295 510-680 470-630 450-600 14-20





BS EN 10025-6 :Technical delivery conditions for flat products of high yield strength structural steels in the quenched and tempered condition



Product Chemical composition

Quality C Si Mn P S N B Cr Cu Mo Nb Ni Ti V Zr
  max % max % max % max % max % max % max % max % max % max % max % max % max % max % max %
No symbo; 0,22 0,86 1,8 0,030 0,017 0,016 0,006 1,60 0,055 0,74 0,07 2,1 0,07 0,14 0,17
L 0,22 0,86 1,8 0,025 0,012 0,016 0,006 1,60 0,055 0,74 0,07 2,1 0,07 0,14 0,17
L1 0,22 0,86 1,8 0,025 0,012 0,016 0,006 1,60 0,055 0,74 0,07 2,1 0,07 0,14 0,17



Basic mechanical properties at room temperature

Name Number R eH Minimum Yield strength (MPa)
for nominal thickness(mm) 		Rm (MPa)
for nominal thickness (mm)		 A
Elongation min )
=> 3 >50 >100 =>3 >50 >100
=< 50 =< 100 =< 150 =< 50 =< 100 =< 150 %
S460Q 1.8908 460 440 400 550-720 550-720 500-670 17
S460QL 1.8906 460 440 400 550-720 550-720 500-670 17
S460QL1 1.8916 460 440 400 550-720 550-720 500-670 17
S500Q 1.8924 500 480 440 590-770 590-770 540-720 17
S500QL 1.8909 500 480 440 590-770 590-770 540-720 17
S500QL1 1.8984 500 480 440 590-770 590-770 540-720 17
S550Q 1.8904 550 530 490 640-820 640-820 590-770 16
S550QL 1.8926 550 530 490 640-820 640-820 590-770 16
S550QL1 1.8986 550 530 490 640-820 640-820 590-770 16
S620Q 1.8914 620 580 560 700-890 700-890 650-830 15
S620QL 1.8927 620 580 560 700-890 700-890 650-830 15
S620QL1 1.8987 620 580 560 700-890 700-890 650-830 15
S690Q 1.8931 690 650 630 770-940 760-930 710-900 14
S690QL 1.8928 690 650 630 770-940 760-930 710-900 14
S690QL1 1.8988 690 650 630 770-940 760-930 710-900 14
S890Q 1.8940 890 830 - 940-1100 880-1100 - 11
S890QL 1.8983 890 830 - 940-1100 880-1100 - 11
S890QL1 1.8925 890 830 - 940-1100 880-1100 - 11
S960Q 1.8941 960 - - 980-1150 - - 10
S960QL 1.8933 960 - - 980-1150 - - 10


See Also


Steel Selection links
  1. Material Cross Reference List..Coromant- Sandvik comprehensive list of steels
  2. Hendrix Group..General Material Information Available
  3. Key-To-Steel...An excellent reference site for steel classifications and properties.- registration required for full access
  4. West Yorkshire Steel Co Ltd ...Reputable UK Steel Supplier, Site includes Material specifications
  5. Introduction to Comparing World Steel Standards ..Download .Useful Notes from ASTM (No equivalent only comparable)
  6. European steels and Alloys ...Database of European Steels and Alloy and equivalents - Vast amount of useful information.


�