Material Group 74 ISO/TR 15608: Austempered ductile cast iron
Austempered ductile cast iron
Austempered ductile cast irons, or more commonly ADI castings, is a ductile iron casting which is processed by a special heat treatment. The austempering process, with ductile iron’s superior castability, results in a material which can be used to cast complex shapes, with a greater consistency of quality, and often at less cost. The heat treatment requires an interrupted quench, usually into a salt bath, to cool the cast part at a planned rate and long enough to achieve the desired austempered result. The resulting material has a combination of exceptional strength and toughness, meeting and often exceeding those of alloy steels.
Typical materials in group 74
Name | Number | Standards | Remarks |
---|---|---|---|
EN-GJS-800-8 | EN-JS1100 | EN 1564 | |
EN-GJS-800-8-RT | EN-JS1104 | EN 1564 | |
EN-GJS-800-8-S-RT | EN-JS1109 | EN 1564 | |
EN-GJS-1000-5 | EN-JS1110 | EN 1564 | |
EN-GJS-1200-2 | EN-JS1120 | EN 1564 | |
EN-GJS-1400-1 | EN-JS1130 | EN 1564 |