This article provides information on the classification, microstructure, castability and section sensitivity of gray iron. It describes properties of the test bar and provides a short note on fatigue limit in reversed bending. Although the ASTM size B test bar is the bar most commonly used for all gray irons from classes 20 to 60, ASTM A 48 provides a series of bar sizes, and the user can select the bar sizes that best approximates the cooling rate in the critical section of the casting.
FALL / WINTER 2020 CATALOG
View the new, upcoming, and best-selling resources in ASM Handbooks, technical books, and databases in the Fall / Winter 2020 Catalog.