S355K2 AM FCE: Normalized or Normalized Formed Steel (+N) – Strong, Durable, and Ready for Construction

Structural steel is carbon-manganese steel with a guaranteed minimum yield strength and tensile strength, and satisfactory ductility. This steel is suitable for most common applications and is readily available from distributors and Steel Service Centres in the most common forms and dimensions. It offers good weldability with conventional welding processes. In most cases, pre- or post-heat treatment is not necessary with welding. In addition to its good mechanical properties, structural steel also has very acceptable toughness values.

Properties

General

Property	Value	Comment
Carbon equivalent (CEV)	0.45 [-]	max.

Dimension

Property	Value
Dimensions	For mill finish, coils in thicknesses greater than 20 mm can also be produced. Please contact us. Please feel free to check the figure on the right side of the material page for more details.

Mechanical

Property	Temperature	Value	Comment
Charpy impact energy	-20 °C	40 J	min. \| for thickness 6-20 mm
Elongation		15 %	min. \| for thickness 2-2.5 mm \| Transverse, A80
		16 %	min. \| for thickness 2.5-3 mm \| Transverse, A80
		20 %	min. A5.65√So \| for thickness 3-20 mm \| Transverse
Tensile strength		470 - 630 MPa	for thickness 3-20 mm \| Transverse
		510 - 680 MPa	for thickness 2-3 mm \| Transverse
Yield strength		345 MPa	min. \| for thickness 16-20 mm \| Transverse
		355 MPa	min. \| for thickness 2-16 mm \| Transverse

Chemical properties

Property	Value	Comment
Aluminium	0.02 %	min.
Carbon	0.2 %	max.
Copper	0.55 %	max.
Manganese	1.6 %	max.
Nitrogen	0.009 %	max.
Phosphorus	0.025 %	max.
Silicon	0.15 - 0.25 %
Sulfur	0.015 %	max.

Technological properties

Property
Application areas	Structural steels are mainly used in the building industry and in mechanical engineering. Applications include building components, containers, storage tanks and roll formed profiles. 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
Chemical composition	The above chemical properties are based on cast analysis data.
Coating	Galvanisation: Class 3

Property

Application areas

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

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

Chemical composition

The above chemical properties are based on cast analysis data.

Coating

Galvanisation: Class 3

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Metal