I hope I am adressing this question in the right forum:
To calculate several categories including steel, we use Ecoinvent Database.
Now for Stainless Steel, Ecoinvent latest Database give me the following information:
'steel production, chromium steel 18/8, hot rolled - RER - steel, chromium steel 18/8,
hot rolled - IPCC GWP 100a: 5.11 kg CO2-Eq
During my search on the internet, I have found the EPD Calculation of Aperam for 304:
On Page 13, they show a calculation of the LCIA incuding steps A1-A3 / C1-C4 and D
This Calculation give me a value of 1958 per tonne of material. As you can see, there is a massive gap. Do I miss something ? Do I compare completely different things ? Or is Aperam simply producing their steel on a very low emission way compared to the average of europe ?
Thank you for your feedback