Rust-resistant calcium steel

Details Rust-resistant calcium steel Rust-resistant calcium steel

C - Chemistry, Metallurgy

21

C

C21C 7/064 (2006.01) C22C 38/02 (2006.01) C22C 38/04 (2006.01)

Patent

CA 2322146

The composition of inclusions and the S concentration in steel are controlled in a manner such that, among the CaO-containing oxide inclusions present in a Ca-containing steel, an equilibrium S soluble amount (%S inc.) of at least 80% of the oxide inclusion particles having a particle diameter of 2 µm or more are about 0.03 wt% or less, thereby inhibiting rust formation due to the inclusions, thus solving a problem which has long been of concern in Ca-containing steels.

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