The steel industry, as one of the globe’s premier industries in size and history, has taken its place of leadership in transforming itself towards sustainability. Previously identified as a smokestack industry, the steel industry has introduced new technologies and practices in becoming a green industry of sustainable steel.

Elon Musk has stated that environmental concerns “supersede political parties, race, creed, religion, it doesn’t matter. If we do not solve the environment, we’re all damned.” Or as Cameron Sinclair put it, “For 90 percent of the world, sustainability is a matter of survival.” For historian Thomas Fuller, the idea is very simple, “We never know the worth of water ‘til the well is dry.”

One way to see the huge strides the steel industry has taken is by looking at structural steel used in green construction. In particular, the “wood versus steel debate” sheds light on all the different aspects that need to be accounted for when considering sustainability and carbon neutrality.

For example, care must be taken to examine all the details involved with a product’s complete lifecycle. The extraction, manufacturing, and transportation of the materials must be calculated, but also the longevity, disposability, and reusability. Furthermore, all derivative processes must be considered. If the electricity used in steel plants is solar or wind energy, the steel industry becomes more sustainable without directly changing itself, just by modifying tangential processes. The same goes for the wood industry. Not all forest management practices are created equal, and the care taken in logging and replanting trees can radically change the sustainable nature of a material like wood.

By paying attention to all these details, the structural steel industry has decreased its carbon footprint per ton by 36%, lowered energy intensity per ton by 31%, and decreased greenhouse gas emissions per ton by 45%.

One of the most promising aspects of modern American steel processing is recycling, with steel being 100% recyclable. As reported by Architect Magazine, “The American Institute of Steel Construction estimates that 98% of structural steel from demolished buildings is recovered and recycled into new steel products. As such, domestically produced structural steel, which comes from electric arc furnace (EAF) mills, boasts a recycled content of 93%.” Because of steel’s longevity, in fact, one of the major bottlenecks in steel recycling is that, despite 98% of structural steel being recycled, finding enough scrap globally for the potential output of electric arc furnaces can be a problem.

Through innovation and design, the steel industry hopes to reach the ultimate goal: carbon neutrality. It is a fitting goal for an industry with a trajectory as important as steel. If we indeed turn this next century into the “Green Century,” the innovators of our times will become the heroes of the future. That, NMC believes, is a goal worth fighting for.

At NMC our steel slitting, cold rolled steel, hot rolled steel, and all our steel processes aim to continue the tradition of […]