A30    
  Structural steels   Last update: 2011-4-5

Structural steels can be used in the building industry, for example for light steel-frame construction.

 

Properties
   

Structural steels are carbon-manganese steels with a guaranteed minimum yield strength and tensile strength, and satisfactory ductility. These steels are suitable for most common applications and are readily available from distributors and Steel Service Centres in the most common forms and dimensions.

 

Various grades can be supplied:

  • Without any special rolling and/or heat treatment requirements. The abbreviated designation of this delivery condition is +AR.
  • Following a rolling process in which final forming is carried out within a certain temperature range, producing a material in a condition equivalent to that obtained after normalisation, with the result that the specified mechanical properties values are conserved even after normalisation treatment. The abbreviated designation of this delivery condition is +N.

 

Advantages
   

Structural steels offer good weldability with conventional welding processes. In most cases, pre- or post-heat treatment is not necessary with welding. In addition to their good mechanical properties, structural steels also have very acceptable toughness values.

 

Applications
   

Structural steels are mainly used in the building industry and in mechanical engineering. Applications include building components, containers, storage tanks and roll formed profiles.

 

Recommendations for use
   

Options available (after prior agreement):

  • Suitability for galvanising: + CL1 or + CL3
  • Suitability for cold forming: + C
  • Copper addition: + Cu

 

Brand correspondence
   
 EN 10025-2:2004DIN 17100:1983UNE 36080:1990EN 10025-2:1993NF A 35-501PN-88/H-84020:1988PN-86/H-84018:1986ZN-96/0632-07:1996CSNBS 4360:1996UN 7070SSASTM A1011-01aJIS G 3101
S185 EN 10025-2S185St33A310-0S185A33     Fe 32013 00-00  
S235JR EN 10025-2S235JRRSt37-2AE235 BS235JRG2(E24-2)St3S   40 B(Fe 360 B)13 12-00SS Grade 36SS 330
S235JR-CL1 AM FCE(S235JR-Galva1)(RSt37-2)(AE235 B)(S235JRG2)(E24-2)St3S  11375(40 B)(Fe 360 B)(13 12-00)(SS Grade 36)(SS 330)
S235J0 EN 10025-2S235J0St37-3 UAE235 CS235J0E24-3    40 CFe 360 C   
S235J0 AM FCES235J0St37-3 UAE235 CS235J0E24-3(St3V)  1137840 CFe 360 C SS Grade 36SS 330
S235J2 EN 10025-2S235J2  S235J2G4          
S235J2 AM FCES235J2  S235J2G4   St3SAL1137840 D   SS 330
S235J2+N EN 10025-2S235J2+NSt37-3 NAE235 DS235J2G3E24-4   11378 Fe 360D   
S235J2+N AM FCES235J2+NSt37-3 NAE235 DS235J2G3E24-4(St3W)  11378 Fe 360 D  SS 330
S275JR EN 10025-2S275JRSt44-2AE275 BS275JRE28-2    43 BFe 430 B   
S275JR AM FCES275JRSt44-2AE275 BS275JRE28-2St4S  1144343 BFe 430 B14 12-00SS Grade 40SS 400
S275J0 EN 10025-2S275J0St44-3 UAE275 CS275J0E28-3    43 CFe 430 C   
S275J0 AM FCES275J0St44-3 UAE275 CS275J0E28-3(St4V)  1144843 CFe 430 C SS Grade 40SS 400
S275J2 EN 10025-2S275J2  S275J2G4       14 14-01  
S275J2 AM FCES275J2  S275J2G4   St4SAL11448  14 14-01SS Grade 40SS 400
S275J2+N EN 10025-2S275J2+NSt44-3 NAE275 DS275J2G3E28-4   1144843 DFe 430 D14 14-00 SS 400
S275J2+N AM FCES275J2+NSt44-3 NAE275 DS275J2G3E28-4(St4W)  1144843 DFe 430 D14 14-00 SS 400
S355JR EN 10025-2S355JR AE355 BS355JRE36-2    50 BFe 510 B   
S355JR AM FCES355JR AE355 BS355JRE36-2 (18G2) 1152350 BFe 510 B SS Grade 50 
S355J0 EN 10025-2S355J0St52-3 UAE355 CS355J0E36-3    50 CFe 510 C   
S355J0 AM FCES355J0St52-3 UAE355 CS355J0E36-3   1152350 CFe 510 C SS Grade 50 
S355J2 EN 10025-2S355J2  S355J2G4          
S355J2 AM FCES355J2  S355J2G4    11523   SS Grade 50 
S355J2+N EN 10025-2S355J2+NSt52-3 NAE355 DS355J2G3E36-4    50 DFe 510 D   
S355J2+N AM FCES355J2+NSt52-3 NAE355 DS355J2G3E36-4 18G2A 1152350 DFe 510 D   
S355K2 EN 10025-2S355K2  S355K2G4          
S355K2+N EN 10025-2S355K2+N  S355K2G3     50 DD    
S355K2+N AM FCES355K2+N  S355K2G3     50 DD    
Grades in italics: not included in the standard
() Closest grade as no fully equivalent grade exists.


 

Dimensions
    Mill finish
Thickness (mm)Min widthS185 EN 10025-2, S235JR EN 10025-2, S235JR-CL1 AM FCE, S235J0 AM FCES235J0 EN 10025-2, S235J2 EN 10025-2, S235J2+N EN 10025-2, S275JR EN 10025-2, S275J0 EN 10025-2, S275J2 EN 10025-2, S275J2+N EN 10025-2S235J2 AM FCES235J2+N AM FCES275JR AM FCE, S275J0 AM FCES275J2 AM FCES275J2+N AM FCE
Max widthMax widthMax widthMax widthMax widthMax widthMax width
1.50 ≤ th < 1.608001560-15601320130013001150
1.60 ≤ th < 1.70140014001200
1.70 ≤ th < 1.80162016201490149014501260
1.80 ≤ th < 1.901540154014601460
1.90 ≤ th < 2.00178016501590159015201520
2.00 ≤ th < 2.10183017001630163016201620
2.10 ≤ th < 2.201660166016601660
2.20 ≤ th < 2.3017201720172017201720
2.30 ≤ th < 2.40193017901780178017801780
2.40 ≤ th < 2.5018402140184018401840
2.50 ≤ th < 2.60198019001900190019001900
2.60 ≤ th < 2.90210021002100210021002100
2.90 ≤ th < 20.00215021502150215021502150

Thickness (mm)Min widthS355JR EN 10025-2, S355J0 EN 10025-2S355JR AM FCE, S355J0 AM FCES355J2 EN 10025-2, S355J2 AM FCE, S355J2+N EN 10025-2S355J2+N AM FCE, S355K2 EN 10025-2, S355K2+N EN 10025-2, S355K2+N AM FCE
Max widthMax widthMax widthMax width
1.50 ≤ th < 1.60800-11001100-
1.60 ≤ th < 1.7012001200
1.70 ≤ th < 1.8012501250
1.80 ≤ th < 1.9013001300
1.90 ≤ th < 2.00135013501050
2.00 ≤ th < 2.30144014401330
2.30 ≤ th < 2.40146014601360
2.40 ≤ th < 2.501420
2.50 ≤ th < 2.60152015201480
2.60 ≤ th < 2.70157015701580
2.70 ≤ th < 2.8015901590
2.80 ≤ th < 3.0016301630
3.00 ≤ th < 3.10204020402040
3.10 ≤ th < 3.20208020802080
3.20 ≤ th < 3.30212021202120
3.30 ≤ th < 3.40214021402140
3.40 ≤ th < 15.00215021502150
15.00 ≤ th < 16.00193019301930
16.00 ≤ th < 16.5017401740
16.50 ≤ th < 20.001780

Pickled
Thickness (mm)Min widthS185 EN 10025-2, S235JR EN 10025-2, S235JR-CL1 AM FCE, S235J0 AM FCE, S275J0 AM FCES235J0 EN 10025-2, S235J2 EN 10025-2, S235J2+N EN 10025-2, S275JR EN 10025-2, S275J0 EN 10025-2, S275J2 EN 10025-2, S275J2+N EN 10025-2S235J2 AM FCES235J2+N AM FCES275JR AM FCES275J2 AM FCES275J2+N AM FCE
Max widthMax widthMax widthMax widthMax widthMax widthMax width
1.50 ≤ th < 1.608001540-14801320130013001120
1.60 ≤ th < 1.701570140014001250
1.70 ≤ th < 1.80159016101490149014501270
1.80 ≤ th < 1.90163016301540154014601460
1.90 ≤ th < 2.00178016501590159015201520
2.00 ≤ th < 2.10183016601630163016201620
2.10 ≤ th < 2.2016701660166016601660
2.20 ≤ th < 2.3017201720172017201720
2.30 ≤ th < 2.40193017801760178017801780
2.40 ≤ th < 2.5018401840184018401840
2.50 ≤ th < 2.60198019001900190019001900
2.60 ≤ th < 2.75207020702070207020702070
2.75 ≤ th < 3.00
3.00 ≤ th < 3.50
3.50 ≤ th < 4.00213021302130213021302130
4.00 ≤ th < 6.35
6.35 ≤ th < 7.10
7.10 ≤ th < 7.90155015501550155015501550
7.90 ≤ th < 8.001520
8.00 ≤ th < 8.10152015201520
8.10 ≤ th < 13.0015201520

Thickness (mm)Min widthS355JR EN 10025-2, S355J0 EN 10025-2, S355J2 EN 10025-2, S355J2+N EN 10025-2, S355K2 EN 10025-2, S355K2+N EN 10025-2S355JR AM FCES355J0 AM FCES355J2 AM FCES355J2+N AM FCES355K2+N AM FCE
Max widthMax widthMax widthMax widthMax widthMax width
1.50 ≤ th < 1.60800-110011001100--
1.60 ≤ th < 1.701200
1.70 ≤ th < 1.80125012501250
1.80 ≤ th < 1.90130012801270
1.90 ≤ th < 2.0013501310131010501050
2.00 ≤ th < 2.1014401440144013301330
2.10 ≤ th < 2.20
2.20 ≤ th < 2.3013601360
2.30 ≤ th < 2.4015201520153014101410
2.40 ≤ th < 2.5014601460
2.50 ≤ th < 2.6015401540154015101510
2.60 ≤ th < 2.751570157015201520
2.75 ≤ th < 3.00158015801580
3.00 ≤ th < 3.5020402040204020401580
3.50 ≤ th < 4.0021302130213020701780
4.00 ≤ th < 6.352070207020702040
6.35 ≤ th < 7.1015501550155015501550
7.10 ≤ th < 7.9015201520152015201520
7.90 ≤ th < 8.00
8.00 ≤ th < 8.10
8.10 ≤ th < 13.00



 

Mechanical properties
   
 
Direction
Thickness (mm)
Re (MPa)
Rm (MPa)
A80 (%)
A 5.65√So (%)
KV 20°C (J)
KV 0°C (J)
KV -20°C (J)
S185 EN 10025-2T1.5 - 2≥ 185310 - 540≥ 10----
2 - 2.5≥ 11
2.5 - 3≥ 12
3 - 16290 - 510-≥ 16
16 - 20≥ 175
S235JR EN 10025-2L6 - 20----≥ 27--
T1.5 - 2≥ 235360 - 510≥ 17----
2 - 2.5≥ 18
2.5 - 3≥ 19
3 - 16-≥ 24
16 - 20≥ 225
S235JR-CL1 AM FCEL6 - 20----≥ 27--
T1.5 - 2≥ 235360 - 510≥ 17----
2 - 2.5≥ 18
2.5 - 3≥ 19
3 - 16-≥ 24
16 - 20≥ 225
S235J0 EN 10025-2L6 - 20-----≥ 27-
T1.5 - 2≥ 235360 - 510≥ 17----
2 - 2.5≥ 18
2.5 - 3≥ 19
3 - 16-≥ 24
16 - 20≥ 225
S235J0 AM FCEL6 - 20-----≥ 27-
T1.5 - 2≥ 235360 - 510≥ 17----
2 - 2.5≥ 18
2.5 - 3≥ 19
3 - 16-≥ 24
16 - 20≥ 225
S235J2 EN 10025-2L6 - 20------≥ 27
T1.5 - 2≥ 235360 - 510≥ 17----
2 - 2.5≥ 18
2.5 - 3≥ 19
3 - 16-≥ 24
16 - 20≥ 225
S235J2 AM FCEL6 - 20------≥ 27
T1.5 - 2≥ 235360 - 510≥ 17----
2 - 2.5≥ 18
2.5 - 3≥ 19
3 - 16-≥ 24
16 - 20≥ 225
S235J2+N EN 10025-2L6 - 20------≥ 27
T1.5 - 2≥ 235360 - 510≥ 17----
2 - 2.5≥ 18
2.5 - 3≥ 19
3 - 16-≥ 24
16 - 20≥ 225
S235J2+N AM FCEL6 - 20------≥ 27
T1.5 - 2≥ 235360 - 510≥ 17----
2 - 2.5≥ 18
2.5 - 3≥ 19
3 - 16-≥ 24
16 - 20≥ 225
S275JR EN 10025-2L6 - 20----≥ 27--
T1.5 - 2≥ 275430 - 580≥ 15----
2 - 2.5≥ 16
2.5 - 3≥ 17
3 - 16410 - 560-≥ 21
16 - 20≥ 265
S275JR AM FCEL6 - 20----≥ 27--
T1.5 - 2≥ 275430 - 580≥ 15----
2 - 2.5≥ 16
2.5 - 3≥ 17
3 - 16410 - 560-≥ 21
16 - 20≥ 265
S275J0 EN 10025-2L6 - 20-----≥ 27-
T1.5 - 2≥ 275430 - 580≥ 15----
2 - 2.5≥ 16
2.5 - 3≥ 17
3 - 16410 - 560-≥ 21
16 - 20≥ 265
S275J0 AM FCEL6 - 20-----≥ 27-
T1.5 - 2≥ 275430 - 580≥ 15----
2 - 2.5≥ 16
2.5 - 3≥ 17
3 - 16410 - 560-≥ 21
16 - 20≥ 265
S275J2 EN 10025-2L6 - 20------≥ 27
T1.5 - 2≥ 275430 - 580≥ 15----
2 - 2.5≥ 16
2.5 - 3≥ 17
3 - 16410 - 560-≥ 21
16 - 20≥ 265
S275J2 AM FCEL6 - 20------≥ 27
T1.5 - 2≥ 275430 - 580≥ 15----
2 - 2.5≥ 16
2.5 - 3≥ 17
3 - 16410 - 560-≥ 21
16 - 20≥ 265
S275J2+N EN 10025-2L6 - 20------≥ 27
T1.5 - 2≥ 275430 - 580≥ 15----
2 - 2.5≥ 16
2.5 - 3≥ 17
3 - 16410 - 560-≥ 21
16 - 20≥ 265
S275J2+N AM FCEL6 - 20------≥ 27
T1.5 - 2≥ 275430 - 580≥ 15----
2 - 2.5≥ 16
2.5 - 3≥ 17
3 - 16410 - 560-≥ 21
16 - 20≥ 265
S355JR EN 10025-2L6 - 20----≥ 27--
T1.5 - 2≥ 355510 - 680≥ 14----
2 - 2.5≥ 15
2.5 - 3≥ 16
3 - 16470 - 630-≥ 20
16 - 20≥ 345
S355JR AM FCEL6 - 20----≥ 27--
T1.5 - 2≥ 355510 - 680≥ 14----
2 - 2.5≥ 15
2.5 - 3≥ 16
3 - 16470 - 630-≥ 20
16 - 20≥ 345
S355J0 EN 10025-2L6 - 20-----≥ 27-
T1.5 - 2≥ 355510 - 680≥ 14----
2 - 2.5≥ 15
2.5 - 3≥ 16
3 - 16470 - 630-≥ 20
16 - 20≥ 345
S355J0 AM FCEL6 - 20-----≥ 27-
T1.5 - 2≥ 355510 - 680≥ 14----
2 - 2.5≥ 15
2.5 - 3≥ 16
3 - 16470 - 630-≥ 20
16 - 20≥ 345
S355J2 EN 10025-2L6 - 20------≥ 27
T1.5 - 2≥ 355510 - 680≥ 14----
2 - 2.5≥ 15
2.5 - 3≥ 16
3 - 16470 - 630-≥ 20
16 - 20≥ 345
S355J2 AM FCEL6 - 20------≥ 27
T1.5 - 2≥ 355510 - 680≥ 14----
2 - 2.5≥ 15
2.5 - 3≥ 16
3 - 16470 - 630-≥ 20
16 - 20≥ 345
S355J2+N EN 10025-2L6 - 20------≥ 27
T1.5 - 2≥ 355510 - 680≥ 14----
2 - 2.5≥ 15
2.5 - 3≥ 16
3 - 16470 - 630-≥ 20
16 - 20≥ 345
S355J2+N AM FCEL6 - 20------≥ 27
T1.5 - 2≥ 355510 - 680≥ 14----
2 - 2.5≥ 15
2.5 - 3≥ 16
3 - 16470 - 630-≥ 20
16 - 20≥ 345
S355K2 EN 10025-2L6 - 20------≥ 40
T2 - 2.5≥ 355510 - 680≥ 15----
2.5 - 3≥ 16
3 - 16470 - 630-≥ 20
16 - 20≥ 345-
S355K2+N EN 10025-2L6 - 20------≥ 40
T2 - 2.5≥ 355510 - 680≥ 15----
2.5 - 3≥ 16
3 - 16470 - 630-≥ 20
16 - 20≥ 345
S355K2+N AM FCEL2 - 2.5-510 - 680≥ 15----
2.5 - 3≥ 16
6 - 16--≥ 40
16 - 20≥ 345-
T2 - 2.5≥ 355510 - 680≥ 15----
2.5 - 3≥ 16
3 - 6--≥ 20
6 - 16470 - 630
16 - 20≥ 345-
Grades in italics: not included in the standard


 

Chemical composition
   
 
C (%)
Mn (%)
P (%)
S (%)
Si (%)
Al (%)
Cu (%)
N (%)
Ceq (%)
Galvanisation
S185 EN 10025-2 - - - - - - - - - No
S235JR EN 10025-2 ≤ 0.170 ≤ 1.40 ≤ 0.035 ≤ 0.035 - - ≤ 0.55 ≤ 0.012 - No
S235JR-CL1 AM FCE ≤ 0.170 ≤ 1.40 0.025 0.030 ≤ 0.03 ≥ 0.010 ≤ 0.55 ≤ 0.009 0.35 Class 1
S235J0 EN 10025-2 ≤ 0.170 ≤ 1.40 ≤ 0.030 ≤ 0.030 - - ≤ 0.55 ≤ 0.012 - No
S235J0 AM FCE ≤ 0.170 ≤ 1.40 ≤ 0.030 ≤ 0.030 0.03 - ≤ 0.55 0.009 0.35 Class 1
S235J2 EN 10025-2 ≤ 0.170 ≤ 1.40 ≤ 0.025 ≤ 0.025 - - ≤ 0.55 - - No
S235J2 AM FCE ≤ 0.170 ≤ 1.40 ≤ 0.025 ≤ 0.025 0.03 - ≤ 0.55 - 0.35 Class 1
S235J2+N EN 10025-2 ≤ 0.170 ≤ 1.40 ≤ 0.025 ≤ 0.025 - - ≤ 0.55 - - Class 1
S235J2+N AM FCE 0.130 - 0.170 ≤ 1.40 ≤ 0.025 0.020 0.03 0.015 - 0.070 0.15 0.007 0.35 Class 1
S275JR EN 10025-2 ≤ 0.210 ≤ 1.50 ≤ 0.035 ≤ 0.035 - - ≤ 0.55 ≤ 0.012 - No
S275JR AM FCE ≤ 0.210 ≤ 1.50 ≤ 0.035 0.025 - - ≤ 0.55 ≤ 0.012 0.40 No
S275J0 EN 10025-2 ≤ 0.180 ≤ 1.50 ≤ 0.030 ≤ 0.030 - - ≤ 0.55 ≤ 0.012 - No
S275J0 AM FCE 0.040 - 0.180 ≤ 1.50 0.025 0.020 0.03 - 0.20 0.009 0.40 Class 1
S275J2 EN 10025-2 ≤ 0.180 ≤ 1.50 ≤ 0.025 ≤ 0.025 - - ≤ 0.55 - - No
S275J2 AM FCE ≤ 0.180 ≤ 1.50 ≤ 0.025 ≤ 0.025 0.03 0.020 ≤ 0.55 0.012 0.40 Class 1
S275J2+N EN 10025-2 ≤ 0.180 ≤ 1.50 ≤ 0.025 ≤ 0.025 - - ≤ 0.55 - - No
S275J2+N AM FCE ≤ 0.180 ≤ 1.50 ≤ 0.025 0.020 0.03 0.020 ≤ 0.55 0.012 0.40 Class 1
S355JR EN 10025-2 ≤ 0.240 ≤ 1.60 ≤ 0.035 ≤ 0.035 ≤ 0.55 - ≤ 0.55 ≤ 0.012 - No
S355JR AM FCE 0.200 ≤ 1.60 ≤ 0.035 0.020 0.50 - ≤ 0.55 0.009 0.45 No
S355J0 EN 10025-2 ≤ 0.200 ≤ 1.60 ≤ 0.030 ≤ 0.030 ≤ 0.55 - ≤ 0.55 ≤ 0.012 - No
S355J0 AM FCE ≤ 0.200 ≤ 1.60 0.025 0.020 0.03 0.020 - 0.080 ≤ 0.55 0.009 0.45 Class 1
S355J2 EN 10025-2 ≤ 0.200 ≤ 1.60 ≤ 0.025 ≤ 0.025 ≤ 0.55 - ≤ 0.55 - - No
S355J2 AM FCE ≤ 0.200 ≤ 1.60 ≤ 0.025 0.015 0.03 0.020 - 0.080 ≤ 0.55 0.009 0.45 Class 1
S355J2+N EN 10025-2 ≤ 0.200 ≤ 1.60 ≤ 0.025 ≤ 0.025 ≤ 0.55 - ≤ 0.55 - - No
S355J2+N AM FCE 0.120 - 0.200 ≤ 1.60 ≤ 0.025 0.015 0.25 0.020 - 0.080 ≤ 0.55 0.008 0.45 Class 3
S355K2 EN 10025-2 ≤ 0.200 ≤ 1.60 ≤ 0.025 ≤ 0.025 ≤ 0.55 - ≤ 0.55 - - No
S355K2+N EN 10025-2 ≤ 0.200 ≤ 1.60 ≤ 0.025 ≤ 0.025 ≤ 0.55 - ≤ 0.55 - - No
S355K2+N AM FCE ≤ 0.200 ≤ 1.60 ≤ 0.025 0.015 0.15 - 0.25 - ≤ 0.55 0.009 0.45 Class 3
Grades in italics: not included in the standard
Values in bold: tighter than the standard

The chemical properties given are based on cast analysis data.



   
For commercial information (quotations, deliveries, product availability):

For technical questions about these products: fce.technical.assistance@arcelormittal.com
For researchers: click here


All details provided in the ArcelorMittal Flat Carbon Europe S.A. catalogue are for information purposes only. ArcelorMittal Flat Carbon Europe S.A. reserves the right to change its product range at any time without prior notice.