SMU Data and Models
Final Thoughts
Written by Becca Moczygemba
March 30, 2023
After working in the steel industry for nearly six years, I’m comfortable with my knowledge about flat-rolled products. I do enjoy talking about the market and furthering my steel education any chance I get.
Back in October 2022, I attended the Steel 101 training in Corpus Christi, Texas. It was nice to chat with metallurgists and learn some of the intricacies of the steelmaking proces that I may have otherwise not learned. Steel really is all around us.
However, I came across something interesting that I did not know: Steel slag can be used in fertilizers. Since Spring has sprung, at least here in Texas where I live, many people are starting their fertilizing regimen. But who is really thinking about the ingredients they’re laying down as they plant fresh flowers or a fine new shrubbery?
According to a 2015 technical report from Nippon Steel, “Both blast furnace slag and steelmaking slag have been utilized as raw materials for fertilizer. Fertilizers made of blast furnace slag or steelmaking slag are categorized in slag silicate fertilizer, by produced lime fertilizer, slag phosphate fertilizer or iron matter of special fertilizer. Effective elements in blast furnace slag are Ca, Si and Mg. Steelmaking slag contains Ca, Si, Mg, P, Mn and Fe. Steelmaking slag also contains plant available Si. Therefore, fertilizers made of steelmaking slag is more useful.”
So, there you have it. The next time you plan on feeding your lawn, you can share that interesting fact and impress all your neighbors.
Steel 101
It’s not too late to register for our Steel 101 workshop on Tues-Wed. April 11-12 in Cleveland. The course will feature a tour of Cleveland-Cliffs’ Cleveland Works.
Students will learn about steelmaking in the morning, and then they’ll see the processes they’ve just learned in action in the afternoon. They won’t just see, but actually feel that heat.
The combination of learning about a hot-strip mill and then seeing that mill in action really makes the knowledge stick. You can learn more and register here.
By Becca Moczygemba, becca@steelmarketupdate.com

Becca Moczygemba
Read more from Becca MoczygembaLatest in SMU Data and Models

SMU Survey: Current Sentiment tumbles on tariffs, uncertainty, soft demand
SMU’s Steel Buyers’ Sentiment Indices moved in opposing directions this week. Our Current Steel Buyers’ Sentiment Index dropped to one of the lowest levels recorded in over five years, while Future Buyers’ Sentiment inched higher.

SMU flat-rolled market survey results now available
SMU’s latest steel buyers market survey results are now available on our website to all premium members. After logging in at steelmarketupdate.com, visit the pricing and analysis tab and look under the “survey results” section for “latest survey results.” Past survey results are also available under that selection. If you need help accessing the survey results, or if […]

SMU Survey: Buyers report little change in sheet and plate lead times
Steel buyers report steady lead times for sheet and plate products, a soft-sideways trend we've seen since May.

SMU Survey: Mills remain flexible on pricing, buyers say
The majority of steel buyers responding to our market survey this week continue to say that mills are negotiable on new spot order prices. Negotiation rates have remained high since May.

Service centers: Mill orders improve in July
SMU’s Mill Order Index (MOI) moved higher in July after rebounding the month prior. The shift comes after mill orders declined from March through May.