World Stainless Association releases report on CO2 emissions

The World Stainless Association has released a report detailing emissions data related to the stainless steel industry.

Like many other industries, the stainless steel sector has been working to reduce its CO2 emissions year after year. Over the past decade, both direct and indirect emissions from the industry have progressively declined as a result of continued improvement efforts. The report also highlights the differences between two main production methods: scrap-based production and Nickel Pig Iron (NPI) production, along with the emissions linked to each process. Despite 95% of stainless steel scrap being collected for recycling at the end of its life cycle, there is currently insufficient scrap available worldwide. As a result, both production routes will need to coexist for the foreseeable future.

The report provides CO2 emissions data for stainless steel production, depending on the mix of scrap used. These figures include Scope 1, Scope 2, and Scope 3 emissions and are referred to as "Cradle to Gate" emissions.

The report emphasizes that while emissions from stainless steel production are important, they only represent part of the picture. Stainless steels can reduce emissions during the use phase of materials and products. Two primary production systems—scrap-based and NPI—are both needed to meet global stainless steel demand. Over time, the emissions related to NPI production are expected to decrease as greener technologies become more prevalent in the industry.

Additionally, the report notes that life cycle emissions associated with stainless steel offer a broader perspective on the material's sustainability. For certain products and installations, around 70% of life cycle emissions occur during the use or operational phase. The durability of stainless steel, which requires less maintenance and replacement compared to other materials, results in a lower overall emissions profile over time.

Source: World Stainless Association, Photo: Fotolia