17 The "World Wide Guide to Equivalent Irons and Steels" is a vintage collector's edition book published by ASM International in 1979. This nonfiction book, written by various authors, is aimed at young adults and adults interested in materials science and engineering. Focusing on the topic of metals and alloys, this hardcover book provides a comprehensive guide to equivalent irons and steels from around the world. With its informative content and historical significance, this book is a valuable resource for those studying or working in the field of materials science.