Table 3: The mechanical properties of plastically deformed ADI with respect to heat treatment. (ADI samples austenitized at 927 ℃, plastically deformed, followed by either single step/two - step austempering).
| Austempering condition | Austempering temperature (℃) | Yield strength (MPa) | Ultimate tensile strength (MPa) | Hardness |
| (HRC) | ||||
| Single step process | 385 | 709 ± 14 | 970 ± 24 | 35 ± 3 |
| 360 | 750 ± 30 | 1109 ± 67 | 37 ± 3 | |
| 316 | 896 ± 6 | 971 ± 18 | 48 ± 8 | |
| 288 | 1159 ± 35 | 1244 ± 42 | 49 ± 5 | |
| Two-step process | 385 | 953 ± 22 | 1065 ± 29 | 34 ± 2 |
| 360 | 963 ± 15 | 1093 ± 52 | 37 ± 2 | |
| 316 | 1199 ± 26 | 1334 ± 38 | 41 ± 2 | |
| 288 | 1208 ± 18 | 1304 ± 22 | 42 ± 2 |