Why steel is one of the most

sustainable materials

European press event October 5 2015

Carl De Maré, Vice President,

Head of emerging technology development

social

environment economic

bearable equitable

viable

sustainable

Abundant

Low Cost

Easy to Use

Standard of Living

Endless Recycable

Non-toxic

GHG friendly material

Infra- structure

The three spheres of sustainability

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Steel – an indispensable material to develop the world

• Total steel in stock in a developed society is leveling out at ca10ton per capita

• Cheap and abundant steel is indispensable for the developing countries

Energy System Analyisi Agency SAAM model

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What about GHG emissions?

Source: Designing Climate change mitigation plans that add up – B. Bajzelj, J. Allwood, J. M. Cullen

Food

Transport

Buildings

Chemicals

Steel

Ca 20% of emissions are linked with man-made materials from which Steel,

Chemicals and Cement are the most important.

Cement

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Other

Paper,

Non-ferro,

Textiles

Nat Gas

Subst.

Cement

Subst.

Stones

Heat &

Power

FeO + C Fe + CO/CO2

+ Energy

Power

Steel Scrap

“Fresh Steel”

Steel in Use

End of Life Steel 90% is recovered

after 40 years

1,2t CO2/t Steel

(incl. by-product) 0,4 CO2/t Steel

Steel is endlessly recyclable and the backbone of the future circular economy

In EU28 : more steel scrap is recycled then fresh (ore based)

steel is added to the system

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Source : own analysis Source : SAAM, VITO

Debit and credit for materials emissions The only way to assess the impact.

Approx. 40% of the GHG Emissions will remain if the BF is closed!

8

Steel is a low emission material even when it needs carbon for the chemical process

Including only one recycling step, steel is < 0,9 t CO2/t

steel or less then half of what is believed.

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Material * Life Cycle CO2

(tCO2 / t Steel)

Natural Stone 0,2

Pine 0,45

Steel 0,86

Clinker 0,9

Aluminium 2,2

Carbon Fibre 17

Titanium 17

Life Cycle CO2 / t steel incl by-products

At 90% recovery

0 1 2 3 4

Of all materials, only steel combines low emissions, low costs and high recycling at large scale!

Source : Elaboration on M. Ashby materials and the Environment

Steel is essential to a low carbon economy! 10

ArcelorMittal strategy related to GHG emissions

1. New products

to reduce

“handprint” 2. More efficient

ways to recycle

3. “Capture and reuse

of carbon”

CO

Steel Waste Gas

CO2

H2

Low Cost

CO2 Capturing

Low Cost

CO2 Filtration

CO2 Enrichment

Of Waste Gas

Carbonate of

Minerals

Methanol

Production

Reversible

Electrolysis

Fermentation

Methanation

Construction

Material

Natural Gas

Production

Carburants

Energy

Storage

Green Plastics

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Low Impact Steel Program 2013-2017 supported by ADEME France

Project VALORCO explores 5 major ways

to valorise CO2 in the future

„Capture and re-use of carbon

Low Impact Steel Strategy : Capture and Reuse Carbon Exploration

13 * Preliminary projects launched – development and upscaling takes 10 to 15 years

Use Carbon capture for Transport Fuels (Lanzatech),

Green plastics, Carbonated minerals and even Food

enables to further reduce the Footprint and Handprint

Current Potential Future (*)

Used to produce sustainable energy… …and for sustainable housing

Crucial to the white goods industry

Steel is essential for a sustainable society

Irreplaceable for the automotive industry

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