Our company produces INSTEEL® multicomponent modifiers used for extra-furnace steel processing. They contain such chemically active components as Ca, Sr, Ba, Ti, Zr, Ce, La, etc. Their combination and quantitative content in particular grades depend on the specific conditions of their application and challenges faced by a particular foundry plant working to meet quality requirements.
In addition to Ca, Ba, also contain Sr. Strontium and other AEM contained in multicomponent alloys enhances the impact of calcium and barium on the various properties of steels: their flowability and mechanical properties.
The use of this modifier makes it possible to obtain a high degree of calcium recovery and highest impact strengths at temperatures below freezing.
Based on the obtained results with regard to modification, it is safe to assume that strontium, as compared to barium, more efficiently protects calcium from oxidization and transforms it into a microalloying element, making the dendrite structure of steel castings more refined and improving steel properties.
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