This SAE Standard covers the mechanical and physical property requirements for austempered ductile iron (ADI) castings used in automotive and allied industries. Specifically covered are: a. hardness; b。
tensile strength; c。
yield strength; d。
elongation; e. modulus of elasticity; f。
impact energy; and g。
マイクロ構造。
In this document SI units are primary and in-lb units are derived. Appendix A provides general information and related resources on the microstructural, chemical and heat treatment requirements to meet the mechanical properties needed for ADI in particular service conditions and applications.