Standards
The tables below list the most commonly used ADI standards.
Table 1. The European Standard for Austempered Ductile Irons.
Designation: BS EN 1564:1997
| Material Designation |
Tensile strength Rm N/mm² min. |
0.2% proof stress Rp0.2 N/mm² min. |
Elongation A (%) min.
|
Brinell hardness range (BHN) |
|
| Symbol | Number | ||||
| EN-GJS-800-8 | EN-JS1100 | 800 | 500 | 8 | 260-320 |
| EN-GJS-1000-5 | EN-JS1100 | 1000 | 700 | 5 | 300-360 |
| EN-GJS-1200-2 | EN-JS1120 | 1200 | 850 | 2 | 340-440 |
| EN-GJS-1400-1 | EN-JS1130 | 1400 | 1100 | 1 | 380-480 |
Table 2. Impact resistance (notched).
| Material Designation | Impact resistance value at 23±5°C (J) | ||
| Symbol | Number | Mean value of 3 tests | Individual value |
| EN-GJS-800-8S-RT | EN-JS1109 | 10 | 9 |
Table 3. The American Standard for Austempered Ductile Iron Castings.
Designation: ASTM A897M-03 (published January 2004)
|
Russell ADI Grade |
Ultimate Tensile Stress N/mm² |
0.2% Proof Stress N/mm² |
Elongation
% |
Impact Energy
|
Typical hardness Range HB |
| 1/2 | 750 | 500 | 11 | 110 | 241-302 |
| 1 | 900 | 650 | 9 | 100 | 269-341 |
| 2 | 1050 | 750 | 7 | 80 | 302-375 |
| 3 | 1200 | 850 | 4 | 60 | 341-444 |
| 4 | 1400 | 1100 | 2 | 35 | 388-477 |
| 5 | 1600 | 1300 | 1 | 20 | 402-512 |
Un-notched Charpy bars tested at 22 ± 4 °C.
Russell Ductile Castings has a long experience of ADI castings and would be pleased to discuss your applications. Our engineering team is able to offer application advice to provide you with the lowest cost solution.
Contact Russell Ductile Castings if you would like to discuss what an ADI casting can do for you.
