Transcript Laser grades - ArcelorMittal Europe

Laser grades
April 2014
April 2014
Market needs
vs technical requirements
Your needs
A global economical solution
ArcelorMittal answer
High cutting speed
Excellent flatness and surface quality
Cutting accuracy
Specific chemistry, good cleanliness
Consistent formability and process ability
Tight mechanical properties range
Fast & accurate weldability
Weldable and cuttable chemistry
Minimal requirement for rework
Control of residual stresses
Ease of painting or galvanising
Excellent surface quality
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Specific chemistry and a good cleanliness
to improve laser cutting, welding or galvanising
12-mm plate
containing
0.03% Si
0.3% Si
Lower silicon content
Lower carbon content
good quality
bad quality
• 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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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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ArcelorMittal offer
Principles
sensitive
cutting
machine
robust
Severity on internal tensions
S---Laser Premium
S---Laser Classic
Standard Products
Normal
Flatness
Special
Flatness
Flatness severity on sheet
simple
standard
cut part
complex
tight
Complexity
Dimensional tolerances
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ArcelorMittal offer
Guarantees
S---Laser
Product form
S---Laser Classic S---Laser Premium
Coils
Sheets
generic
Improved cutting
performances
Reduced scatter
(composition, properties
thickness…)
Improved cutting
performances
Reduced scatter
(composition, properties thickness...)
on coils
minimised internal stresses
n.a.
Guarantees
on
sheets
n.a.
Flatness tolerance =
min (4 mm/m,
EN10051 special
tolerance)
on cut
parts
n.a.
Maximum allowable
curvature = 5 mm/m
Flatness tolerance =
min (3 mm/m,
EN10051 special
tolerance)
Maximum allowable
curvature = 3 mm/m
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ArcelorMittal offer
Range
High Strength Low Alloy
(HSLA) steels
Structural steels
S200 Laser AM FCE
S240 Laser AM FCE
S275 Laser AM FCE
S355 Laser AM FCE
Dimensional
range*
S320MC Laser AM FCE
S360MC Laser AM FCE
S420MC Laser AM FCE
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
* Dimensional range is indicative. For detailed feasibility for each size and grade,
please refer to our product catalogue on industry.acelormittal.com
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ArcelorMittal offer
Grades and chemical composition
Chemical properties
Structural steels
C
(%)
Mn
(%)
P
(%)
S
(%)
Si
(%)
Al
(%)
Cu
(%)
Cr
(%)
Ni
(%)
Nb
(%)
Ceq
(%)
Galvanisation
-
-
-
-
≤ 0.16
Class 1
S200 Laser AM FCE
≤ 0.08
≤ 0.45 ≤ 0.025 ≤ 0.025 ≤ 0.03 ≥ 0.020
S240 Laser AM FCE
≤ 0.17
≤ 0.80 ≤ 0.025 ≤ 0.025 ≤ 0.03 ≥ 0.020 ≤ 0.25
-
-
-
≤ 0.35
Class 1
S275 Laser AM FCE
≤ 0.18
≤ 1.30 ≤ 0.025 ≤ 0.025 ≤ 0.03 ≥ 0.020 ≤ 0.25
≤ 0.15
≤ 0.25
-
≤ 0.40
Class 1
S355 Laser AM FCE
≤ 0.20
≤ 1.60 ≤ 0.025 ≤ 0.012 ≤ 0.03 ≥ 0.020 ≤ 0.25
≤ 0.15
≤ 0.25 ≤ 0.060 ≤ 0.45
Class 1
High Strength
Low Alloy steels
C
(%)
Mn
(%)
P
(%)
S
(%)
Si
(%)
Al
(%)
Cu
(%)
Cr
(%)
Ni
(%)
Nb
(%)
Ceq
(%)
Galvanisation
S320MC Laser AM FCE
≤ 0.10
≤ 1.30 ≤ 0.025 ≤ 0.012 ≤ 0.03 ≥ 0.020 ≤ 0.25
≤ 0.15
≤ 0.25 ≤ 0.040
-
Class 1
S360MC Laser AM FCE
≤ 0.11
≤ 1.40 ≤ 0.020 ≤ 0.012 ≤ 0.03 ≥ 0.020 ≤ 0.25
≤ 0.15
≤ 0.25 ≤ 0.050
-
Class 1
S420MC Laser AM FCE
≤ 0.12
≤ 1.60 ≤ 0.020 ≤ 0.012 ≤ 0.03 ≥ 0.020 ≤ 0.25
≤ 0.15
≤ 0.25 ≤ 0.065
-
Class 1
Mechanical properties, see details on our website:
http://industry.arcelormittal.com/prd_web/new_web_details.pl?code=A40&langlist=EN
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ArcelorMittal offer
Surface functionalisation
Laser qualities may be delivered as
• Mill finish
• Pickled and oiled
• Pickled with dry coating Easyfilm®
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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
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