Heavy Section Cast Steel Refining Agent

Introduction A thick steel section is not simply a big version of a thin one. In a heavy wall the centre is the last region to solidify and the last to release anything dissolved in the steel. Gas that a thin wall would tolerate becomes porosity in the middle of a 200 mm section, inclusions that a fast freeze would scatter can band together, and hydrogen held in solution long enough can open up as flakes after the casting cools. Our Heavy Section Cast Steel Refining Agent is a composite flux added at the ladle, before the mould is filled, to take hydrogen, oxygen and sulfur out of the steel and float suspended inclusions up to the slag.   Why heavy sections need a clean melt Defects in heavy castings rarely start at the surface. They start in the middle of the section, after the skin has already frozen and stopped the remaining melt from moving. Refining in the ladle is the last point at which the steel is still fully liquid and still has a slag layer that can absorb what the flux bri…

High Efficiency Deoxidizer Composite Metallurgical Inoculant Refining And Purifying Agent For Cast Steel Cast Iron Refining And Purification Agent