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Structural Steels are used in many applications,
combining good welding properties with guaranteed strengths. There are
many grades and the uses varied including civil and industrial
engineering. High strength low alloys have replaced many structural
steels where weight reduction is important (e.g. automotive) but with
guaranteed strengths. |
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Traditional Structural Steels |
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Euronorm |
Germany |
UK |
USA |
France |
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EN10025 |
Din 17100 |
BS4360 |
ASTM |
NFA 35-501 |
%C |
%Mn |
%Si |
%S |
%P |
Yield min |
Tensile |
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S185 |
St33 |
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A283B |
A33 |
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S235 |
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40A |
A283C |
|
0.22max |
1.60 max |
0.50 max |
.050 max |
.050 max |
185 |
310/540 |
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S235JR |
St37-2 |
40B |
A283C-A |
|
0.17max |
1.40max |
- |
0.045 |
0.045 |
235 |
360/510 |
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S235JO |
St37-3 U |
40C |
|
E 24-2 |
0.17max |
1.40max |
- |
0.040 |
0.040 |
235 |
360/510 |
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S235J2G3 |
St37-3 N |
40D |
|
E24-4 |
0.17max |
1.40max |
- |
0.035 |
0.035 |
235 |
360/510 |
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S275 |
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43A |
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0.25max |
1.60 max |
0.50 max |
.050 max |
.050 max |
275 |
430/580 |
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S275JR |
St44-2 |
43B |
A283D-A |
|
0.21max |
1.50max |
- |
0.045max |
0.045max |
275 |
430/580 |
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S275JO |
St44-3 U |
43C |
A578Gr70 |
E28-3 |
0.18max |
1.50max |
- |
0.040max |
0.040max |
275 |
430/580 |
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S355 |
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50A |
A572Gr50 |
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0.23max |
1.60max |
0.50max |
0.050max |
0.050max |
355 |
490/630 |
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S355JR |
|
50B |
- |
|
0.23max |
1.60max |
0.55max |
0.045max |
0.045max |
355 |
490/630 |
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S355JO |
St52-3 U |
50C |
A441 |
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0.22max |
1.60 max |
0.60 max |
0.40 max |
0.040 max |
355 |
490/630 |
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S355J2G3 |
St 52-3 N |
50D |
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0.20max |
1.60max |
0.55max |
0.035max |
0.035max |
355 |
490/630 |
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S355J2G4 |
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0.20max |
1.60max |
0.55max |
0.035max |
0.035max |
355 |
490/630 |
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High Strength Low Alloy Steels |
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Euronorm |
Germany |
UK |
USA |
France |
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EN
10149-2 |
SEW 092 |
BS1449 |
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NFA
36-231 |
%C |
%Mn |
%Si |
%S |
%P |
Yield min |
Tensile |
V |
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S315MC |
QSTE340TM |
40/30 |
045XLF |
E315D |
0.12max |
1.30max |
0.50max |
0.020max |
0.025max |
315 |
390/510 |
0.20max |
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S355MC |
QSTE380TM |
43/35 |
050XLF |
E355D |
0.12max |
1.50max |
0.50max |
0.020max |
0.025max |
355 |
430/550 |
0.20max |
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S420MC |
QSTE420TM |
46/40 |
060XLF |
E420D |
0.12max |
1.60max |
0.50max |
0.015max |
0.025max |
420 |
480/620 |
0.20max |
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S460MC |
QSTE460TM |
50/45 |
- |
- |
0.12max |
1.60max |
0.50max |
0.015max |
0.025max |
460 |
520/670 |
0.20max |
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S315MC |
- |
40F30 |
- |
E315D |
0.12max |
1.30max |
0.50max |
0.015max |
0.025max |
315 |
|
0.20max |
|
S355MC |
- |
40F35 |
- |
E355D |
0.12max |
1.50max |
0.50max |
0.015max |
0.025max |
355 |
|
0.20max |
|
- |
- |
46F40 |
- |
- |
0.12max |
1.50max |
0.50max |
0.015max |
0.025max |
355 |
|
0.20max |
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S420MC |
QSTE420TM |
- |
- |
E420D |
0.12max |
1.60max |
0.50max |
0.015max |
0.025max |
420 |
|
0.20max |
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S460MC |
QSTE460TM |
- |
Gr65 |
- |
0.12max |
1.60max |
0.50max |
0.015max |
0.025max |
460 |
|
0.20max |
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S500MC |
QSTE500TM |
E490D |
070XLK |
- |
0.12max |
1.70max |
0.50max |
0.015max |
0.025max |
500 |
550/700 |
0.20max |
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S550MC |
QSTE550TM |
- |
080XLK |
- |
0.12max |
1.80max |
0.50max |
0.015max |
0.025max |
550 |
600/760 |
0.20max |
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Links to Branded High strength Low Alloy grades:- |
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Docol SSAB of Sweden |
Tenform from Corus |
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Comparison of BS EN 10025 and BS 4360
Mechanical Properties |
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BS EN 10025: 1993 |
BS4360: 1986 |
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Impact Energy (J°C) |
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Impact Energy (J°C) |
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Nominal Thickness |
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Nominal Thickness |
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Grade |
Tensile Strength |
Min Yield Strength at 16mm N/mm² |
Max Thk for Specified Yield N/mm² |
Temp °C |
<150mm |
>150mm |
Grade |
Tensile Strength >3mm |
Min Yield Strength at 16mm |
Max Thk for Specified Yield N/mm²
(2) |
Temp °C |
<100mm |
|
-1 |
<250mm |
N/mm² |
N/mm² |
-3 |
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-1 |
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S185 (4) |
290/510 |
185 |
25 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
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S235 (5) |
340/470 |
235 |
250 |
- |
- |
- |
40A |
340/500 |
235 |
150 |
- |
- |
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S235JR (4) |
340/470 |
235 |
25 |
20 |
27 |
- |
- |
- |
- |
- |
- |
- |
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S235JRG1 (4) |
340/470 |
235 |
25 |
+20 (6) |
27 |
- |
- |
- |
- |
- |
- |
- |
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S235JRG2 |
340/470 |
235 |
250 |
+20 (6) |
27 |
23 |
40B |
340/500 |
235 |
150 |
+20 (6) |
27 |
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S235JO |
340/470 |
235 |
250 |
0 |
27 |
23 |
40C |
340/500 |
235 |
150 |
0 |
27 |
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S235J2G3 |
340/470 |
235 |
250 |
-20 |
27 |
23 |
40D |
340/500 |
235 |
150 |
-20 |
27 |
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S235J2G4 |
340/470 |
235 |
250 |
-20 |
27 |
23 |
40D |
340/500 |
235 |
150 |
-20 |
27 |
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S275 (5) |
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