Steel- fully killed, semi killed, normalised, annealed ? Understanding them with IRS B1 provisions!

Fully Killed Steel: Fully killed steel is steel in which all of the dissolved gases (primarily oxygen) are removed during the steel-making process, often using deoxidizers. This results in a more uniform and stable structure. IRS B1 Provisions: In IRS B1, fully killed steel is generally preferred for applications requiring high quality and reliability, as it minimizes the risks of porosity or uneven properties within the material. Semi-Killed Steel: Semi-killed steel has a reduced level of deoxidizers compared to fully killed steel, which means some oxygen content remains in the steel. This results in slightly more variability in properties compared to fully killed steel, but it is less costly to produce.