1. SUSTAINABLE CONSTRUCIONAL STEEL SOLUTIONS INNOVATIONS IN BUILDING WITH STEEL SECTIONS ArcelorMittal - Commercial Sections Georges Axmann | Head of Technical Advisory | ArcelorMittal Commercial Sections

2. NEW Composite slim-floor NEW Weathering steel = ARCOROX NEW Environmental Product Declaration NEW Carbon footprint calculator = AMECO NEW CE-mark for HISTAR NEW Larger Angle Sizes NEW Stronger steel = A913 Grade 70 NEW Heavier sections

3. NEW Composite Slim Floors

4. CoSFB – Composite Slim-Floor Beam Composite floor system with downstanding beam Slim-floor beam (SFB) system – non composite Composite Slim-Floor Beam (CoSFB) System Major benefits without adding to the complexity of the fabrication or compromising of the cost 2 existing systems  1 Innovative system Steel beam Concrete dowels Concrete slab (prefabricated)

5. Slim-Floor construction = integration of the steel section into the floor slab.  No impact on ductwork layout Slim Floors for Large Spans = CoSFB

6. NEW ARCOROX = Weathering Steel for Sections and Merchant Bars

7. Weathering steel: Steel S355J0 W EN10025-5 Arcorox

8. NEW Environmental Product Declaration = Ready for the Green CE-Mark

9. Environmental Product Declaration (= environmental impact data per ISO140025 of products) Available for Sections and Plates In compliance for coming regulation of the “Green” CE-Mark

10. NEW AMECO software = Calculation tool of carbon footprint of building frames and bridges

13. NEW CE-mark for HISTAR steel (HISTAR = High Strength ArcelorMittal Steel)

14. HISTAR steel grades European Technical Approval  CE-Mark

15. HISTAR material properties HISTAR 460 HISTAR 355 S460M/ML S355M/ML S460N/NL S355N/NL

16. NEW Larger Size Angles

17. New dimensions - L 300 x 300 x t New ArcelorMittal angles L 300 x 300 x 28 mm L 300 x 300 x 29 mm L 300 x 300 x 30 mm L 300 x 300 x 31 mm L 300 x 300 x 32 mm L 300 x 300 x 33 mm L 300 x 300 x 34 mm L 300 x 300 x 35 mm

18. Truss girders with large angles L 300 x 300

19. Powerline masts

20. Advantages of Truss Towers Reduced wind load: taller towers become economical >100m Significant weight savings (40%) in tower and foundations Easy to fabricate, transport and erect Standard angles with high availability Visual Transparency

21. NEW Stronger steel quality ASTM A913 Grade 70 [485]

22. Trend: Bold Structures High strength & thickness products ArcelorMittal HISTAR® Jumbo H sections

23. Tensile Properties NEW STEEL ASTM A913 Grade 70 (HISTAR) 70 70 [485] 90 [620]1416  Further steel weight and cost savings Strengthening the leadership of ArcelorMittal in Heavy Sections

24. NEW Heavier Sections

25. New Beam Blank BB5 : Increased thickness and height of flange BB4 BB5 163 mm 190 mm 500 mm 510 mm  the heaviest Beam-blank worldwide Strengthening the leadership of ArcelorMittal in Heavy Sections

26. First rolling out of Beam-Blank route W 36X16,5´´ 920 lbs/ft W 14X16´´ 808 lbs/ft Strengthening the leadership of ArcelorMittal in Heavy Sections

27. New Sections in 2010 ! Ghbtwtw tftf kg/m mm W 14 x 16 x 808HD 400 x 1202120258047195130 W 14 x 16 x 873HD 400 x 12991299600476100140 W 36 x 16.5 x 723HL 920 x 10771077106145155,099,1 W 36 x 16.5 x 802HL 920 x 11941194108145760,5109 W 36 x 16.5 x 853HL 920 x 12691269109346164,0115,1 W 36 x 16.5 x 925HL 920 x 13771377109347376,7115,1 W 40 x 16 x 655HL 1000 x 97697611084285089,9 max. min. t f w max. min. t Strengthening the Leadership in Heavy Sections