Interpretation of Changes in Revised Chinese National Standard GB/T 24733-2023"Austempered Ductile Iron(ADI)Castings"
The revision of GB/T 24733-2023"Austempered Ductile Iron(ADI)Castings"is reviewed,and the main changes is described.The reasons of revision and differences between the revised standard and its previous version together with ISO 17804:2020"Founding-Ausferritic Spheroidal Graphite Cast Irons-Classification"are interpreted.The characteristics and application scope of the present standard are discussed.