Boron alloying additive for continuously casting boron steel

Details Boron alloying additive for continuously casting boron steel Boron alloying additive for continuously casting boron steel

C - Chemistry, Metallurgy

22

C

22/167, 53/51

C22C 35/00 (2006.01)

Patent

CA 1196195

ABSTRACT A boron alloying additive for continuous casting of boron steel having the desired hardenability without tundish nozzle blockage. The additive comprises 0.25-3.0% boron, 2.5-40% rare earth metals (RE), 6-60% titanium, and the balance iron. The additive may also contain silicon, calcium, manganese, and zirconium. In the additive the weight ratios of Ti to B and (Ti + RE) to B are 20:1 - 60:1 and 30:1 - 90:1, respectively.

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