April 2014 Laser grades April 2014. 1 Market needs vs technical requirements High cutting speedExcellent flatness and surface quality Your needs A global.

April 2014

Laser gradesApril 2014

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Market needs vs technical requirements

Your needsA global economical solution ArcelorMittal answer

Specific chemistry and a good cleanliness to improve laser cutting, welding or galvanising

Lower silicon content

Lower carbon content • High Carbon promotes

CO2 formation, limiting O2 diffusion. Resulting in lower speed.

• Over-combustions or disturbances on banded structures which presents local concentrations rich in carbon.

Lower sulphur and phosphorous• Internal cleanliness to improve

cut edge quality

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12-mm plate containing

bad qualitygood quality

0.03% Si 0.3% Si

Specific process to improve flatness before, during and after laser cutting

Coils • The diagram of controlled rolling and cooling allows

to obtain a great regularity of the mechanical characteristics to limit the internal stresses and to improve the flatness of the sheet.

• The reduction of the thickness tolerances makes it possible to decrease the average weight of the cut out parts and contributes to the regularity of the springback when folding.

Sheets• A specific levelling process makes it possible

to reduce the effects of the internal stresses and to control their effect on flatness.

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Standard Products

ArcelorMittal offer Principles

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cutting machine

sensitive

robust

simple complexstandard tight

Flatness severity on sheet

Sev

erity

on

inte

rnal

ten

sion

s

S---Laser Classic

S---Laser Premium

cut part

ComplexityDimensional tolerances

SpecialFlatness

NormalFlatness

ArcelorMittal offer Guarantees

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S---Laser PremiumS---Laser ClassicS---Laser

Dimensional range*

Dry offer Pickled offer

Thickness range(mm)

Width range(mm)

Thickness range(mm)

Width range(mm)

Coils: Laser 2.00 ≤ th < 16.00 700-2130 2.00 ≤ th < 13.00 600-2130

Sheets: Laser Classic

2.50 ≤ th < 16.00 700-2100 2.00 ≤ th < 13.00 700-2000

Sheets: Laser Premium

2.50 ≤ th < 15.50 600-2000 2.50 ≤ th < 8.00 600-2000

ArcelorMittal offer Range

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* Dimensional range is indicative. For detailed feasibility for each size and grade, please refer to our product catalogue on industry.acelormittal.com

Structural steels

S200 Laser AM FCE S240 Laser AM FCES275 Laser AM FCES355 Laser AM FCE

Structural steels

S200 Laser AM FCE S240 Laser AM FCES275 Laser AM FCES355 Laser AM FCE

High Strength Low Alloy (HSLA) steels

S320MC Laser AM FCES360MC Laser AM FCES420MC Laser AM FCE

High Strength Low Alloy (HSLA) steels

S320MC Laser AM FCES360MC Laser AM FCES420MC Laser AM FCE

ArcelorMittal offer Grades and chemical composition

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Mechanical properties, see details on our website:http://industry.arcelormittal.com/prd_web/new_web_details.pl?code=A40&langlist=EN

Chemical properties

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Laser qualities may be delivered as

• Mill finish

• Pickled and oiled

• Pickled with dry coating Easyfilm®

ArcelorMittal offer Surface functionalisation

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Conclusion

Laser grades are the perfect materials that will help you to take full advantage of your piece of equipment:

• Higher productivity

• Excellent quality of cut edges

• No distortions after cutting

• Excellent processability

ArcelorMittal supports you by developing

• Specific qualities• Services

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For further product information please contact your Client Technical Support Managers.

Thanks for your attention...

http://flateurope.arcelormittal.com

Photo credits: TRUMPF Gruppe, Jacques Van den Berghe, Philippe Vandenameele