2024 Vienna Molybdenum Symposium Mo4Steel

In November 2024, IMOA and the Austrian Society for Metallurgy and Materials (ASMET) co-hosted a two-day symposium in Vienna, Austria, dedicated to molybdenum and its applications in steels and stainless steels from cradle to grave. The event, held from November 13–15, brought together leading experts from across the molybdenum and steel industries, following two years of joint preparation.

Over 30 presentations explored topics ranging from sustainable mining and alloy development to process efficiency and high-performance applications. Each presentation offers a concise, accessible overview—perfect for anyone new to the molybdenum or steel industries to quickly discover moly’s many advantages, especially its role in building a more sustainable future. While we cannot share all papers—some authors did not grant permission—the sections below contain the presentations we are authorized to make available for download.

From Sustainable Mo Mining to Sustainable Steel

IMOA 2024 LCI & Carbon Footprint Update Study
Sandra Carey, IMOA (UK)

Navigating Europe’s Raw Materials Landscape: Policies and Strategies
Dr Laurence Lamm, EIT RawMaterials (France)

Sustainable molybdenum for generations
Chris Gnann, Climax (USA)

Moly for Europe: The Greenland primary molybdenum mining project
Ruben Shiffman, Greenland Resources (Canada)

Molymet Belgium strategic partner in green moly additives for the EU steel industry
Nele Van Roey, Molymet Belgium (Belgium)

On the decarburizing activities at ArcelorMittal Industeel
Stéphanie Corre, ArcelorMittal Industeel (France)

The Power of Moly

The power of Moly alloying – a brief history of sustainable steel metallurgy
Hardy Mohrbacher, NiobelCon BV (Belgium)

Understanding of Molybdenum effects on the dynamic and static softening mechanisms in hot rolled low carbon steels: basic principles and processing implications
Pello Uranga, CEIT & University of Navarra‑Tecnun (Spain)

The effect of molybdenum during hot rolling on the microstructure and mechanical properties of wear resistant steels
Antti Kaijalainen, University of Oulu (Finland)

Interplay between alloying and tramp element effects on temper embrittlement in BCC iron: DFT and thermodynamic insights
Amin Sakic, Montanuniversität Leoben, Dept. of Materials Science (Austria)

Passivity and repassivation mechanism of stainless steels containing molybdenum
Markus Valtiner, TU Vienna, Applied Interface Physics (Austria)

Molybdenum Boosting Process Efficiency

Molybdenum – A sustainable Partner for the Special Steel Industry
Frank Hippenstiel, BGH (Germany)

Use of Molybdenum for Recrystallization Control and Microstructure Development in Compact Strip Production
C. Matthew Enloe, Steel Dynamics (USA)

Modelling of the effect of a Mo‑addition on the kinetics of precipitation reactions in high‑strength micro‑alloyed structural steels during heat treatment and hot‑dip galvanizing
Charles Stallybrass, Salzgitter Mannesmann Forschung GmbH (Germany)

Effect of molybdenum on the strengthening mechanisms of advanced HSLA‑steels
Mario Ploberger, voestalpine Stahl GmbH (Austria)

Liquid phase‑enhanced molybdenum homogenization during sintering of PM steels
Stefan Geroldinger, TU Wien, Institute of Chemical Technologies and Analytics (Austria)

Sinter hardening hybrid alloyed PM steels based on Mo pre-alloyed powder
Aurel Dvorak, TU Wien, Institute of Chemical Technologies and Analytics (Austria)

Sustainable Performance with Mo Alloyed Steels

The beneficial actions of Molybdenum to reduce friction and to save carbon allowances
Mathias Woydt, MATRILUB (Belgium)

Vitale Role of Molybdenum in Oil/Gas Production
David L. Sponseller, OMNI Metals Laboratory, Inc. (USA)

Functional principles and applications of a turbulent flow processor for water purification
Hardy Mohrbacher, NiobelCon BV (Belgium) & Walter Bauer, Bauer Energy‑Design, (Canada)

Molybdenum alloying in advanced special steels: small amounts, big effects enhancing strength and sustainability
David Quidort, AM Industeel (France)

Molybdenum alloyed stainless steel in mineral processing
Mikko Palosaari, Outokumpu (Sweden)

How the recycling of molybdenum metal and molybdenum‑containing stainless steel scrap closes the loop
Frank Wäckerle, Cronimet (Germany)