Malleable iron is cast as white iron, the structure being a metastable carbide in a pearlitic matrix. Through an annealing heat treatment, the brittle structure as first cast is transformed into the malleable form. Carbon agglomerates into small roughly spherical aggregates of graphite leaving a matrix of ferrite or pearlite according to the exact heat treatment used. Three basic types of malleable iron are recognized within the casting industry: blackheart malleable iron, whiteheart malleable iron and pearlitic malleable iron.

In the present book, fifteen typical literatures about soft metal published on international authoritative journals were selected to introduce the worldwide newest progress, which contains reviews or original researches on Metalworking, Archaeometallurgy , Bare metal stents, Heavy Metal Stress, Dissimilar welding, etc. We hope this book can demonstrate advances in malleable metal as well as give references to the researchers, students and other related people.