MATERIAL ANALYTICS IN THE AREA
Slags
In metallurgy, slag refers to the non-metallic by-product that solidifies in a glassy or crystalline form, which is indispensable in metal extraction during ore smelting. According to the United States Geological Survey, approximately 460–600 million tons of iron and steel slags (blast furnace and steel mill slags) were produced worldwide in 2016.
However, slag is not a waste product. After cooling and the addition of slag binders, the slag undergoes various processing steps and is subsequently used as a high-quality secondary raw material in the cement industry, civil engineering, and agriculture. This helps conserve primary raw material resources.
Depending on the process, various types of slags are produced, which we can analyze for their composition:
Blast Furnace Slag (BFS): Produced during the creation of pig iron
Steel Mill Slag (SMS): Produced during the creation of crude steel or steel and is differentiated into converter slag (BOF slag) or electric arc furnace slag (EAF slag)
Granulated Blast Furnace Slag: Used as ground granulated blast-furnace slag (GGBFS)
Especially since the introduction of the new Substitute Building Materials Ordinance (EBV), the reusability of slags has gained prominence.
The use of slags, for example, in the construction industry or road construction, proves to be highly sustainable and resource-saving.
We analyze your steel mill slag (SMS), electric arc furnace slag (EAF slag), or blast furnace slag (BFS) for their chemical composition and check whether they are suitable as recycling materials.
The technology for slag processing has evolved over the past decades. As a result, old slags are being removed from landfills and reprocessed.
These slags often still contain many metallic components that can be recycled using modern processes, conserving both resources and finances, and creating more space in landfills.
Slags are used in steel production and occur in metallurgical processes in a liquid form. In these processes, they float on the molten metal due to their lower density, serving both as thermal insulation and binding impurities like sulfur and carbon from the pig iron.
The chemical composition of the slag can provide insights into the processes and the raw materials used.
For enquiries about these analyses, please contact our laboratory team at anfrage@industrial-lab.de or get in touch with your contact person:
Head of Team Inorganics
02762 9740 - 93
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Head of department
Inorganics / Sample Preparation
02762 9740 - 74
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Inorganics
02762 9740 - 85
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