Exothermic alloy for addition of alloying ingredients to steel

摘要

An addition agent and method are provided for adding alloying ingredients to a molten steel bath comprising a P/M compact formed of a compacted mixture of a particulate primary addition alloy and at least one secondary particulate metal. The primary particulate addition alloy is formed of a plurality of elemental metals at least one of which is present in substantial amounts and which primary addition alloy when added to the steel bath alone has a dissolution rate in said bath characteristic of said primary alloy. The at least one secondary particulate component is also an additive to said steel bath and is characterized by being exothermically reactable with said substantial amount of elemental metal in said primary addition alloy so that additional heat is generated when the P/M compact is added to the molten steel bath, whereby the dissolution rate of the primary addition alloy in the compact is substantially increased over the characteristic dissolution rate of the same primary addition alloy when added to the steel bath alone.