Killed steel and rimming steel

Killed steel?
Killed steel is steel that has been completely deoxidized by the addition of an agent before casting, so that there is practically no evolution of gas during solidification. They are characterized by a high degree of chemical homogeneity and freedom from gas porosity.

Rimming steel
Rimming steel is a low-carbon steel . This steel contains an amount of iron oxide such that continuous generation of carbon monoxide during solidification is not inhibited. Rimmed steel is virtually free from voids, and is easily bendable and cleanable. Most rimmed steels contain less than 0.1% carbon.

3 Likes