Visualizing 50 Years Of Global Steel Production

Steel’s Secret: Infinite Recyclability

Made up primarily of iron ore, steel is an alloy which also contains less than 2% carbon and 1% manganese, and other trace elements. While the defining difference might seem small, steel can be 1,000x stronger than iron.

However, steel’s true strength lies in its infinite recyclability with no loss of quality. No matter the grade or application, steel can always be recycled, with new steel products containing 30% recycled steel on average.

The alloy’s magnetic properties make it easy to recover from waste streams, and nearly 100% of the steel industry’s co-products can be used in other manufacturing or electricity generation.

It’s fitting then that steel makes up essential parts of various sustainable energy technologies:

  • The average wind turbine is made of 80% steel on average (140 metric tons).
  • Steel is used in the base, pumps, tanks, and heat exchangers of solar power installations.
  • Electrical steel is at the heart of the generators and motors of electric and hybrid vehicles.

The Steel Industry’s Future Sustainability

Considering the crucial role steel plays in just about every industry, it’s no wonder that prices are surging to record highs. However, steel producers are thinking about long-term sustainability, and are working to make fossil-fuel-free steel a reality by completely removing coal from the metallurgical process.

While the industry has already cut down the average energy intensity per metric ton produced from 50 gigajoules to 20 gigajoules since the 1960s, steel-producing giants like ArcelorMittal are going further and laying out their plans for carbon-neutral steel production by 2050.

Steel consumption and demand is only set to continue rising as the world’s economy gradually reopens, especially as Rio Tinto’s new development of atomized steel powder could bring about the next evolution in 3D printing.

View single page >> |

This was originally posted on Elements. Sign up to the free mailing ...

more
How did you like this article? Let us know so we can better customize your reading experience.

Comments

Leave a comment to automatically be entered into our contest to win a free Echo Show.