S355ML TMCP Steel Plates to EN10028-4

Samuel Becket Bridge in Dublin made from 120 mm S355ML

S355ML is a thermomechanical rolled weldable fine grain structural steel to EN10025-4. This means that it has the ability to provide high strength at low temperatures. As a result it is used in a wide range of applications, from bridges where weight needs to be minimised, to oil and gas structures in the far north of siberia which have to cope with average annual temperatures of below freezing.

S355ML Plates in Stock

We have a large stock of S355ML from 10 – 100 mm. Plate thicknesses are according to our standard range of thicknesses – 2m, 2.5 and 3m wide. Plates are available up to 12 metres in length. Like all our plates we focus on delivering some of the thickest pates available. Our 100m S355ML plates are no exception and are some of the thickest available from stock worldwide. We also have a lot of them and are able to deliver on an ex-stock basis well over 500MT

On an ex-mill basis we can deliver up to 105mm (thicker with special agreement) with a maximum plate width of 4.3 metres and length of 28 metres (though not all at the same time) from Dillinger Hutte.

These TM plates are ideal or applications where improved notch toughness is important as they have been tested at lower temperatures compared to the S355M plates. Yield strength is 355 MPa at low thicknesses and falls – according to EN10025-4 – as the plate thickness increases . S355ML plates can be delivered to customers all across Asia by either container or conventional vessel on a CIF basis.

S355ML Physical & Chemical Characteristics

Structural Steel Chemical Composition

Grade	Standard	Number	C (max) <40	C (max) > 40mm	Si	Mn	P	S	Nb	V	Al	Ti	Cr	Ni	Mo	N	Cu
S235JR+N	EN10025-2:2004	1.0038	0.19	0.23	-	1.5	0.045	0.045								0.014	0.60
S355J2+N	EN10025-2:2004	1.0577	0.23	0.24	0.55	1.7	0.035	0.035								-	0.60
S355K2+N	EN10025-2:2004	1.0596	0.23	0.24	0.55	1.7	0.035	0.035								-	0.60
S355N	EN10025-3:2004	1.0545	0.22	0.22	0.55	0.85 to 1.75	0.035	0.030	0.06	0.14	0.015	0.06	0.35	0.55	0.13	0.017	0.60
S355NL	EN10025-3:2004	1.0546	0.20	0.20	0.55	0.85 to 1.75	0.030	0.025	0.06	0.14	0.015	0.06	0.35	0.55	0.13	0.17	0.60
S460N	EN10025-3:2004	1.8901	0.22	0.22	0.65	0.95 to 1.80	0.035	0.030	0.06	0.22	0.015	0.06	0.35	0.85	0.13	0.027	0.60
S460NL	EN10025-3:2004	1.8903	0.22	0.22	0.65	0.95 to 1.80	0.030	0.025	0.06	0.22	0.015	0.06	0.35	0.85	0.13	0.027	0.60
S355M	EN10025-4:2004	1.8823	0.16	0.16	0.55	1.7	0.035	0.030	0.06	0.12	0.015	0.06	0.35	0.55	0.13	0.027	0.60
S355ML	EN10025-4:2004	1.8834	0.16	0.16	0.55	1.7	0.030	0.025	0.06	0.12	0.015	0.06	0.35	0.55	0.13	0.027	0.60
S460ML	EN10025-4:2004	1.8838	0.18	0.18	0.65	1.8	0.030	0.025	0.06	0.14	0.015	0.06	0.35	0.85	0.23	0.027	0.60

This table provides the main features of the chemical composition of different grades as required by the relevant standards. It is not complete as we have not included many of the minor use cases. These may have a major impact in your application so please use this for reference purposes only and refer to your original and upto date copy of the relevant standard

Mechanical Properties of Structural Steel Grades

Steel Grade	Standard	Number	Tensile Strength 3 to 100mm	Tensile Strength 100<400mm	<16mm	16-40mm	40-63mm	63-80mm	80-100mm	100-150mm	150-200mm	200-250mm	250-400mm	Minimum Elongation (3-40mm)	CVN Temperature	CVN Energy
S235JR+N	EN10025-2:2004	1.0038	360 to 510	340 to 500	235	225	215	215	215	195	185	175		26	20C	27J
S355J2+N	EN10025-2:2004	1.0577	470 to 630	450 to 600	355	345	335	325	315	295	285	275	265	22	-20C	27J
355K2+N	EN10025-2:2004	1.0596	470 to 630	450 to 600	355	345	335	325	315	295	285	275	265	20	-20C	40J
S355N	EN10025-3:2004	1.0545	470 to 630	450 to 600	355	345	335	325	315	295	285	52		22	-20C	40J
S355NL	EN10025-3:2004	1.0546	470 to 630	450 to 600	355	345	335	325	315	295	285			22	-20C	47J
S460N	EN10025-3:2004	1.8901	540 to 720	530 to 710	460	440	430	410	400	380	370			17	-20C	40J
S460NL	EN10025-3:2004	1.8903	540 to 720	530 to 710	460	440	430	410	400	380	370			17	-20C	47J
S355M	EN10025-4:2004	1.8823	440 to 630	430 to 590	355	345	335	325	325	320				22	-20C	40J
S355ML	EN10025-4:2004	1.8834	440 to 630	430 to 590	355	345	335	325	325	320				22	-20C	40J
S460ML	EN10025-4:2004	1.8838	500 to 680	490 to 660	460	440	430	410	400	385				17	-20C	40J

This table provides the main features of the mechanical properties of different offshore grades as required by the relevant standards. It is not complete as we have not included many of the minor use cases. These may have a major impact in your application so please use this for reference purposes only and refer to an original and upto date copy of the relevant standard.

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