Properties

The Amstrong® Laser sheet range comprises hot rolled steel grades developed for applications using computer-controlled thermal and mechanical cutting equipment (laser, plasma etc). The sheets are cut to length from ArcelorMittal coils for laser applications on certified lines that are able to reduce internal stresses and improve flatness before, during and after cutting.
 
All these grades are designed to:

Advantages

Amstrong® Laser sheets are virtually free of internal stresses and can therefore be used to produce sheets with guaranteed flatness before, during and after cutting.

Applications

These sheets are particularly suitable for manufacturing complex parts or for improving productivity.

Surface quality

Laser cutting speed largely depends on surface homogeneity and reflectivity. To improve productivity for our clients, ArcelorMittal has developed several surface finishes compatible with laser cutting:

Weldability

With the ArcelorMittal steels used to produce these sheets for laser cutting applications, excellent weldability is expected.

Range

These sheets may be delivered from coils produced in the different grades shown below.

Brand correspondence

 
High Strength Low Alloy steels
 Coils for laser cutting applicationsEN 10025-2:2004EN 10149-2:2013EN 10111:2008
Amstrong® 320MC Laser Amstrong® 320MC CLAS AM FCE S315MC 
Amstrong® 360MC Laser Amstrong® 360MC CLAS AM FCE S355MC 
Amstrong® 420MC Laser Amstrong® 420MC CLAS AM FCE S420MC 
Amstrong® 500MC Laser Amstrong® 500MC CLAS AM FCE S500MC 
 
Structural steels
 Coils for laser cutting applicationsEN 10025-2:2004EN 10149-2:2013EN 10111:2008
S200 Laser S200 CLAS AM FCE  DD12
S240 Laser S240 CLAS AM FCES235JR/J0  
S275 Laser S275 CLAS AM FCES275JR/J0  
S355 Laser S355 CLAS AM FCES355JR/J0  

Dimensions

Thickness tolerance
The consistent thickness and reduced internal stresses make it possible to operate laser cutting machines continuously by lowering the breakdown risk and the frequency of laser cutting head breakage. This allows the use of fully automated loading and discharging systems.
 
The following thickness tolerances (EN 10051:2010) are available: 1/2 or 1/3 for both mill finish and pickled steels.

Flatness tolerance 
Two products are available, depending on the level of guarantee required:

All the types of guarantee available are summarised in the following table:

 Laser ClassicLaser Premium
For sheetsMaximum deviation: the minimum value, depending on the circumstances, between 4 mm/m or 8 mm/2 m or 12 mm/3 m and the special tolerances in EN 10051:2010Maximum deviation: the minimum value, depending on the circumstances, between 3 mm/m or 6 mm/2 m or 9 mm/3 m and the special tolerances in EN 10051:2010
On cut partsMaximum deviation of 5 mm over a length of 1 mMaximum deviation of 3 mm over a length of 1 m

 
Dimension tables
Cut-to-length sheets will be produced from coils of steels for laser cutting applications (see data sheet A40) and/or from steels in the Amstrong® range (see data sheets A20 – A22). Since the dimensions available are linked to the cutting line, contact our commercial teams for further information on the sheets produced on the line in question.

 

Mechanical properties

See guarantees on coils in A20 – A22 – A40 data sheets




Chemical composition

See guarantees on coils in A20 – A22 – A40 data sheets




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.