This book introduces the calculation method of ingredients for smelting cast iron, cast steel, and non-ferrous alloys. The book is divided into three parts. The first part is the calculation method of ingredients for cast iron smelting, the second part is the calculation method for ingredients for cast steel smelting, and the third part is the calculation method for ingredients for non-ferrous alloy smelting. The book has a total of 15 chapters, and each chapter is preceded by ingredient instructions, precautions, key points, etc.