Properties

Weldable fine grain structural steels are in compliance with the EN 10025-3:2004 standard, which defines four levels of mechanical properties. Each grade can be obtained with guaranteed impact properties at -20C (N grades), or for low-temperature applications at -50C (NL grades).

Advantages

Weldable fine grain structural steels are either normalised or obtained by normalising co-lamination and thus keep their mechanical properties if the welded parts are normalised.

Applications

These steels are used for welded parts that have to withstand high levels of strain. Typical applications are bridges, pylons and other architectural structures.

 

Since 1 July 2013, the Construction Products Regulation (Regulation (EU) No. 305/2011 – CPR) has required that CE marking be affixed to all products delivered in accordance with a harmonised standard (e.g. EN 10025). This CE marking guarantees, for the uses defined in the standard, the properties described in the declaration of performance submitted by the manufacturer.

 

All of the steels in this data sheet comply with this Regulation.

 

The corresponding declarations of performance are available on our website at:

http://dop.arcelormittal.net/index.php

Available options

Options available (after prior agreement):

Brand correspondence

 EN 10025-3:2004DIN 17102:1983UNE 36081:1976NFA 36 201:1992BS 4360:1990UNSS 14EN 10113-2:1993
S275N EN 10025-3 S275NStE 285AE 285 KG / AE 285 KW  Fe E 275 KG N S275N
S275NL EN 10025-3 S275NLT StE 285AE 285 KT 43 EEFe E 275 KT N S275NL
S355N EN 10025-3 S355NStE 355AE 355 KG / AE 355 KWE 355 R Fe E 355 KG N2134-01S355N
S355NL EN 10025-3 S355NLT StE 355AE 355 KTE 355 FP50 EEFe E 355 KT N2135-01S355NL
S420N EN 10025-3 S420NStE 420AE 420 KG / AE 420 KWE 420 R   S420N
S420NL EN 10025-3 S420NLT StE 420AE 420 KTE 420 FP   S420NL
S460N EN 10025-3 S460NStE 460AE 460 KG / AE 460 KWE 460 R Fe E 460 KG N S460N
S460NL EN 10025-3 S460NLT StE 460AE 460 KTE 460 FP55 EEFe E 460 KT N S460NL

Dimensions

For the dimensions available, see Table A in data sheet H99 within the thickness limits specified below:

GradeMinimum thickness (mm)Maximum thickness (mm)
S275 N / NL5150
S275 NR40
S355 N120
S355 NL100
S355 NR40
S420 N / NL100
S460 N / NL80*

NR: normalising rolling process

* After prior agreement

 

Tolerances: in accordance with EN 10029


Mechanical properties

 
Direction
Thickness (mm)
Re (MPa)
Rm (MPa)
A 5.65√So (%)
KV 20°C (J)
KV 0°C (J)
KV -10°C (J)
KV -20°C (J)
KV -30°C (J)
KV -40°C (J)
KV -50°C (J)
S275N EN 10025-3L5 - 150---≥ 55≥ 47≥ 43≥ 40---
T5 - 16≥ 275370 - 510≥ 24≥ 31≥ 27≥ 24≥ 20---
16 - 40≥ 265
40 - 63≥ 255
63 - 80≥ 245≥ 23
80 - 100≥ 235
100 - 150≥ 225350 - 480
S275NL EN 10025-3L5 - 150---≥ 63≥ 55≥ 51≥ 47≥ 40≥ 31≥ 27
T5 - 16≥ 275370 - 510≥ 24≥ 40≥ 34≥ 30≥ 27≥ 23≥ 20≥ 16
16 - 40≥ 265
40 - 63≥ 255
63 - 80≥ 245≥ 23
80 - 100≥ 235
100 - 150≥ 225350 - 480
S355N EN 10025-3L5 - 120---≥ 55≥ 47≥ 43≥ 40---
T5 - 16≥ 355470 - 630≥ 22≥ 31≥ 27≥ 24≥ 20---
16 - 40≥ 345
40 - 63≥ 335
63 - 80≥ 325≥ 21
80 - 100≥ 315
100 - 120≥ 295450 - 600
S355NL EN 10025-3L5 - 100---≥ 63≥ 55≥ 51≥ 47≥ 40≥ 31≥ 27
T5 - 16≥ 355470 - 630≥ 22≥ 40≥ 34≥ 30≥ 27≥ 23≥ 20≥ 16
16 - 40≥ 345
40 - 63≥ 335
63 - 80≥ 325≥ 21
80 - 100≥ 315
S420N EN 10025-3L5 - 100---≥ 55≥ 47≥ 43≥ 40---
T5 - 16≥ 420520 - 680≥ 19≥ 31≥ 27≥ 24≥ 20---
16 - 40≥ 400
40 - 63≥ 390
63 - 80≥ 370≥ 18
80 - 100≥ 360
S420NL EN 10025-3L5 - 100---≥ 63≥ 55≥ 51≥ 47≥ 40≥ 31≥ 27
T5 - 16≥ 420520 - 680≥ 19≥ 40≥ 34≥ 30≥ 27≥ 23≥ 20≥ 16
16 - 40≥ 400
40 - 63≥ 390
63 - 80≥ 370≥ 18
80 - 100≥ 360
S460N EN 10025-3L5 - 80---≥ 55≥ 47≥ 43≥ 40---
T5 - 16≥ 460540 - 720≥ 17≥ 31≥ 27≥ 24≥ 20---
16 - 40≥ 440
40 - 63≥ 430
63 - 80≥ 410≥ 16
S460NL EN 10025-3L5 - 80---≥ 63≥ 55≥ 51≥ 47≥ 40≥ 31≥ 27
T5 - 16≥ 460540 - 720≥ 17≥ 40≥ 34≥ 30≥ 27≥ 23≥ 20≥ 16
16 - 40≥ 440
40 - 63≥ 430
63 - 80≥ 410≥ 16

All mechanical properties are guaranteed in the steel as normalised.


Transversal Charpy impact test results are guaranteed only if specified on ordering.



Chemical composition


 
Thickness (mm)
C (%)
Mn (%)
P (%)
S (%)
Si (%)
Al (%)
Cu (%)
Cr (%)
Ni (%)
Mo (%)
Nb (%)
V (%)
Ti (%)
N (%)
Ceq (%)
S275N EN 10025-35 - 100≤ 0.180.50 - 1.50≤ 0.030≤ 0.025≤ 0.40≥ 0.020≤ 0.55≤ 0.30≤ 0.30≤ 0.10≤ 0.050≤ 0.05≤ 0.050≤ 0.015≤ 0.40
100 - 150≤ 0.42
S275NL EN 10025-35 - 100≤ 0.160.50 - 1.50≤ 0.025≤ 0.020≤ 0.40≥ 0.020≤ 0.55≤ 0.30≤ 0.30≤ 0.10≤ 0.050≤ 0.05≤ 0.050≤ 0.015≤ 0.40
100 - 150≤ 0.18≤ 0.030≤ 0.025≤ 0.42
S355N EN 10025-35 - 63≤ 0.200.90 - 1.65≤ 0.030≤ 0.025≤ 0.50≥ 0.020≤ 0.55≤ 0.30≤ 0.50≤ 0.10≤ 0.050≤ 0.12≤ 0.050≤ 0.015≤ 0.43
63 - 120≤ 0.45
S355NL EN 10025-35 - 63≤ 0.180.90 - 1.65≤ 0.025≤ 0.020≤ 0.50≥ 0.020≤ 0.55≤ 0.30≤ 0.50≤ 0.10≤ 0.050≤ 0.12≤ 0.050≤ 0.015≤ 0.43
63 - 100≤ 0.45
S420N EN 10025-35 - 63≤ 0.201.00 - 1.70≤ 0.030≤ 0.025≤ 0.60≥ 0.020≤ 0.55≤ 0.30≤ 0.80≤ 0.10≤ 0.050≤ 0.20≤ 0.050≤ 0.025≤ 0.48
63 - 100≤ 0.50
S420NL EN 10025-35 - 63≤ 0.201.00 - 1.70≤ 0.025≤ 0.020≤ 0.60≥ 0.020≤ 0.55≤ 0.30≤ 0.80≤ 0.10≤ 0.050≤ 0.20≤ 0.050≤ 0.025≤ 0.48
63 - 100≤ 0.50
S460N EN 10025-35 - 63≤ 0.201.00 - 1.70≤ 0.030≤ 0.025≤ 0.60≥ 0.020≤ 0.55≤ 0.30≤ 0.80≤ 0.10≤ 0.050≤ 0.20≤ 0.050≤ 0.025≤ 0.53
63 - 80≤ 0.54
S460NL EN 10025-35 - 63≤ 0.201.00 - 1.70≤ 0.025≤ 0.020≤ 0.60≥ 0.020≤ 0.55≤ 0.30≤ 0.80≤ 0.10≤ 0.050≤ 0.20≤ 0.050≤ 0.025≤ 0.53
63 - 80≤ 0.54

The above chemical properties are based on cast analysis data. Product analysis may be requested at the time of order.
For the grades S460N and S460NL: V+Nb+Ti ≤ 0.22% and Mo+Cr ≤ 0.30%.
If there is an adequate content of nitrogen-fixing elements, the minimum total aluminium content does not apply.



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

For technical questions about these products: flateurope.technical.assistance@arcelormittal.com


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.