A30  
  Structural steels    

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

 

Properties
   

Structural steels are carbon-manganese steels with a guaranteed minimum yield 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.

 

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 mechanical construction. 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 10025-2:2004 DIN 17100:1983 UNE 36080:1990 EN 10025-2:1993 NF A 35-501 PN-88/H-84020:1988 PN-86/H-84018:1986 ZN-96/0632-07:1996 CSN BS 4360:1996 UN 7070 SS ASTM A1011-01a JIS G 3101
S185 S185 St33 A310-0 S185 A33           Fe 320 13 00-00    
S235JR S235JR RSt37-2 AE235 B S235JRG2 (E24-2) St3S       40 B (Fe 360 B) 13 12-00 SS Grade 36 SS 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 10025-2 S235J0                          
S235J0 AM FCE S235J0 St37-3 U AE235 C S235J0 E24-3 (St3V)     11378 40 C Fe 360 C   SS Grade 36 SS 330
S235J2 EN 10025-2 S235J2                          
S235J2 AM FCE S235J2     S235J2G4       St3SAL 11378 40 D       SS 330
S235J2+N AM FCE S235J2+N St37-3 N AE235 D S235J2G3 E24-4 (St3W)     11378   Fe 360 D     SS 330
S275JR EN 10025-2 S275JR                          
S275JR AM FCE S275JR St44-2 AE275 B S275JR E28-2 St4S     11443 43 B Fe 430 B 14 12-00 SS Grade 40 SS 400
S275J0 EN 10025-2 S275J0                          
S275J0 AM FCE S275J0 St44-3 U AE275 C S275J0 E28-3 (St4V)     11448 43 C Fe 430 C   SS Grade 40 SS 400
S275J2 EN 10025-2 S275J2                          
S275J2 AM FCE S275J2     S275J2G4       St4SAL 11448     14 14-01 SS Grade 40 SS 400
S275J2+N AM FCE S275J2+N St44-3 N AE275 D S275J2G3 E28-4 (St4W)     11448 43 D Fe 430 D 14 14-00   SS 400
S355JR EN 10025-2 S355JR                          
S355JR AM FCE S355JR   AE355 B S355JR E36-2   (18G2)   11523 50 B Fe 510 B   SS Grade 50  
S355J0 EN 10025-2 S355J0                          
S355J0 AM FCE S355J0 St52-3 U AE355 C S355J0 E36-3       11523 50 C Fe 510 C   SS Grade 50  
S355J2 EN 10025-2 S355J2                          
S355J2 AM FCE S355J2     S355J2G4         11523       SS Grade 50  
S355J2+N AM FCE S355J2+N St52-3 N AE355 D S355J2G3     18G2A   11523 50 D Fe 510 D      
S355K2+N AM FCE S355K2+N     S355K2G3 E36-4         50 DD        
Grades in italics: not included in the standard
() Closest grade as no fully equivalent grade exists.


 

Dimensions
    Dry
Thickness (mm) Min width S185, S235JR, S235JR-CL1 AM FCE, S235J0 AM FCE, S235J2 AM FCE, S235J2+N AM FCE S275JR AM FCE, S275J0 AM FCE, S275J2 AM FCE, S275J2+N AM FCE S355JR AM FCE, S355J0 AM FCE, S355J2 AM FCE, S355J2+N AM FCE, S355K2+N AM FCE
Max width Max width Max width
1.50 ≤ th < 1.60 800 1560 1300 1300
1.60 ≤ th < 1.70 1400
1.70 ≤ th < 1.80 1620 1495 1450
1.80 ≤ th < 1.90 1635 1545
1.90 ≤ th < 2.00 1785
2.00 ≤ th < 2.10 1837 1635 1547
2.10 ≤ th < 2.20 1660
2.20 ≤ th < 2.30 1725
2.30 ≤ th < 2.40 1937 1785
2.40 ≤ th < 2.50 1840
2.50 ≤ th < 2.60 1986 1900 1565
2.60 ≤ th < 2.75 2100 2100 1600
2.75 ≤ th < 3.00 1650
3.00 ≤ th < 3.50 2150 2150 2040
3.50 ≤ th < 20.00 2150

Pickled
Thickness (mm) Min width S185 S235JR, S235JR-CL1 AM FCE, S235J0 AM FCE, S235J2 AM FCE, S235J2+N AM FCE S275JR AM FCE S275J0 AM FCE, S275J2 AM FCE, S275J2+N AM FCE S355JR AM FCE, S355J0 AM FCE, S355J2 AM FCE, S355J2+N AM FCE S355K2+N AM FCE
Max width Max width Max width Max width Max width Max width
1.50 ≤ th < 1.60 800 1560 1560 1370 1370 1300 1300
1.60 ≤ th < 1.70 1580 1455 1455
1.70 ≤ th < 1.80 1605 1605 1530 1530 1450 1450
1.80 ≤ th < 1.90 1635 1635 1600 1600
1.90 ≤ th < 2.00 1787 1787 1628 1628
2.00 ≤ th < 2.10 1837 1837 1638 1625 1547 1540
2.10 ≤ th < 2.20 1660 1660
2.20 ≤ th < 2.30 1728 1728 1547
2.30 ≤ th < 2.40 1937 1937 1785 1785
2.40 ≤ th < 2.50 1840 1840
2.50 ≤ th < 2.60 1987 1987 1900 1900 1555 1555
2.60 ≤ th < 2.75 2070 2070 2070 2070 1570 1570
2.75 ≤ th < 3.00 1637 1637
3.00 ≤ th < 3.50 2040 2040
3.50 ≤ th < 6.35 2138 2138
6.35 ≤ th < 13.00 900 2070 2070



 

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 T 1.25 - 1.5 ≥ 185 310 - 540 ≥ 9 - - - -
1.5 - 2 ≥ 10
2 - 2.5 ≥ 11
2.5 - 3 ≥ 12
3 - 16 290 - 510 - ≥ 16
16 - 20 ≥ 175
S235JR L 6 - 20 - - - - ≥ 27 - -
T 1.25 - 1.5 ≥ 235 360 - 510 ≥ 16 - - - -
1.5 - 2 ≥ 17
2 - 2.5 ≥ 18
2.5 - 3 ≥ 19
3 - 16 - ≥ 24
16 - 20 ≥ 225
S235JR-CL1 AM FCE L 6 - 20 - - - - ≥ 27 - -
T 1.25 - 1.5 ≥ 235 360 - 510 ≥ 16 - - - -
1.5 - 2 ≥ 17
2 - 2.5 ≥ 18
2.5 - 3 ≥ 19
3 - 16 - ≥ 24
16 - 20 ≥ 225
S235J0 EN 10025-2 L 6 - 20 - - - - - ≥ 27 -
T 1.25 - 1.5 ≥ 235 360 - 510 ≥ 16 - - - -
1.5 - 2 ≥ 17
2 - 2.5 ≥ 18
2.5 - 3 ≥ 19
3 - 16 - ≥ 24
16 - 20 ≥ 225
S235J0 AM FCE L 6 - 20 - - - - - ≥ 27 -
T 1.25 - 1.5 ≥ 235 360 - 510 ≥ 16 - - - -
1.5 - 2 ≥ 17
2 - 2.5 ≥ 18
2.5 - 3 ≥ 19
3 - 16 - ≥ 24
16 - 20 ≥ 225
S235J2 EN 10025-2 L 6 - 20 - - - - - - ≥ 27
T 1.25 - 1.5 ≥ 235 360 - 510 ≥ 16 - - - -
1.5 - 2 ≥ 17
2 - 2.5 ≥ 18
2.5 - 3 ≥ 19
3 - 16 - ≥ 24
16 - 20 ≥ 225
S235J2 AM FCE L 6 - 20 - - - - - - ≥ 27
T 1.25 - 1.5 ≥ 235 360 - 510 ≥ 16 - - - -
1.5 - 2 ≥ 17
2 - 2.5 ≥ 18
2.5 - 3 ≥ 19
3 - 16 - ≥ 24
16 - 20 ≥ 225
S235J2+N AM FCE L 6 - 20 - - - - - - ≥ 27
T 1.25 - 1.5 ≥ 235 360 - 510 ≥ 16 - - - -
1.5 - 2 ≥ 17
2 - 2.5 ≥ 18
2.5 - 3 ≥ 19
3 - 16 - ≥ 24
16 - 20 ≥ 225
S275JR EN 10025-2 L 6 - 20 - - - - ≥ 27 - -
T 1.25 - 1.5 ≥ 275 430 - 580 ≥ 14 - - - -
1.5 - 2 ≥ 15
2 - 2.5 ≥ 16
2.5 - 3 ≥ 17
3 - 16 410 - 560 - ≥ 21
16 - 20 ≥ 265
S275JR AM FCE L 6 - 20 - - - - ≥ 27 - -
T 1.25 - 1.5 ≥ 275 430 - 580 ≥ 14 - - - -
1.5 - 2 ≥ 15
2 - 2.5 ≥ 16
2.5 - 3 ≥ 17
3 - 16 410 - 560 - ≥ 21
16 - 20 ≥ 265
S275J0 EN 10025-2 L 6 - 20 - - - - - ≥ 27 -
T 1.25 - 1.5 ≥ 275 430 - 580 ≥ 14 - - - -
1.5 - 2 ≥ 15
2 - 2.5 ≥ 16
2.5 - 3 ≥ 17
3 - 16 410 - 560 - ≥ 21
16 - 20 ≥ 265
S275J0 AM FCE L 6 - 20 - - - - - ≥ 27 -
T 1.25 - 1.5 ≥ 275 430 - 580 ≥ 14 - - - -
1.5 - 2 ≥ 15
2 - 2.5 ≥ 16
2.5 - 3 ≥ 17
3 - 16 410 - 560 - ≥ 21
16 - 20 ≥ 265
S275J2 EN 10025-2 L 6 - 20 - - - - - - ≥ 27
T 1.25 - 1.5 ≥ 275 430 - 580 ≥ 14 - - - -
1.5 - 2 ≥ 15
2 - 2.5 ≥ 16
2.5 - 3 ≥ 17
3 - 16 410 - 560 - ≥ 21
16 - 20 ≥ 265
S275J2 AM FCE L 6 - 20 - - - - - - ≥ 27
T 1.25 - 1.5 ≥ 275 430 - 580 ≥ 14 - - - -
1.5 - 2 ≥ 15
2 - 2.5 ≥ 16
2.5 - 3 ≥ 17
3 - 16 410 - 560 - ≥ 21
16 - 20 ≥ 265
S275J2+N AM FCE L 6 - 20 - - - - - - ≥ 27
T 1.25 - 1.5 ≥ 275 430 - 580 ≥ 14 - - - -
1.5 - 2 ≥ 15
2 - 2.5 ≥ 16
2.5 - 3 ≥ 17
3 - 16 410 - 560 - ≥ 21
16 - 20 ≥ 265 -
S355JR EN 10025-2 L 6 - 20 - - - - ≥ 27 - -
T 1.25 - 1.5 ≥ 355 510 - 680 ≥ 13 - - - -
1.5 - 2 ≥ 14
2 - 2.5 ≥ 15
2.5 - 3 ≥ 16
3 - 16 470 - 630 - ≥ 20
16 - 20 ≥ 345
S355JR AM FCE L 6 - 20 - - - - ≥ 27 - -
T 1.5 - 2 ≥ 355 510 - 680 ≥ 14 - - - -
2 - 2.5 ≥ 15
2.5 - 3 ≥ 16
3 - 16 470 - 630 - ≥ 20
16 - 20 ≥ 345
S355J0 EN 10025-2 L 6 - 20 - - - - - ≥ 27 -
T 1.25 - 1.5 ≥ 355 510 - 680 ≥ 13 - - - -
1.5 - 2 ≥ 14
2 - 2.5 ≥ 15
2.5 - 3 ≥ 16
3 - 16 470 - 630 - ≥ 20
16 - 20 ≥ 345
S355J0 AM FCE L 6 - 20 - - - - - ≥ 27 -
T 1.5 - 2 ≥ 355 510 - 680 ≥ 14 - - - -
2 - 2.5 ≥ 15
2.5 - 3 ≥ 16
3 - 16 470 - 630 - ≥ 20
16 - 20 ≥ 345
S355J2 EN 10025-2 L 2.5 - 3 - - ≥ 16 - - - -
6 - 20 - ≥ 27
T 1.25 - 1.5 ≥ 355 510 - 680 ≥ 13 - - - -
1.5 - 2 ≥ 14
2 - 2.5 ≥ 15
2.5 - 3 -
3 - 16 470 - 630 ≥ 20
16 - 20 ≥ 345
S355J2 AM FCE L 6 - 20 - - - - - - ≥ 27
T 1.5 - 2 ≥ 355 510 - 680 ≥ 14 - - - -
2 - 2.5 ≥ 15
2.5 - 3 ≥ 16
3 - 16 470 - 630 - ≥ 20
16 - 20 ≥ 345
S355J2+N AM FCE L 6 - 20 - - - - - - ≥ 27
T 1.5 - 2 ≥ 355 510 - 680 ≥ 14 - - - -
2 - 2.5 ≥ 15
2.5 - 3 ≥ 16
3 - 16 470 - 630 - ≥ 20
16 - 20 ≥ 345
S355K2+N AM FCE L 6 - 16 - - - - - - ≥ 40
T 6 - 16 ≥ 355 490 - 630 - ≥ 20 - - -
Grades in italics: not included in the standard


 

Chemical properties
   
 
C (%)
Mn (%)
P (%)
S (%)
Si (%)
Al (%)
Cu (%)
N (%)
Ceq (%)
Galvanisation
S185 - - - - - - - - - No
S235JR < 0.170 < 1.40 < 0.035 < 0.035 - - < 0.55 < 0.012 < 0.35 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 - -
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 - - -
S235J2 AM FCE < 0.170 < 1.40 < 0.025 < 0.025 < 0.03 - < 0.55 - < 0.35 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 - -
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 - -
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 - - -
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 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 - -
S355JR AM FCE < 0.200 < 1.60 < 0.035 < 0.020 < 0.50 - < 0.55 < 0.009 < 0.45 No
S355J0 EN 10025-2 < 0.220 < 1.60 < 0.030 < 0.030 < 0.55 - < 0.55 < 0.012 - -
S355J0 AM FCE < 0.220 < 1.60 < 0.025 < 0.020 < 0.03 0.020 - 0.080 < 0.55 < 0.009 < 0.45 Class 1
S355J2 EN 10025-2 < 0.220 < 1.60 < 0.025 < 0.025 < 0.55 - < 0.55 - - -
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 AM FCE 0.150 - 0.200 < 1.60 < 0.025 < 0.010 < 0.25 0.020 - 0.080 < 0.55 < 0.008 < 0.45 Class 3
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.