Grade Comparison
| Grade | Matrix / Graphite | Tensile Strength (psi) | Yield Strength (psi) | Elongation | Fatigue Strength (psi) |
| Ductile Irons | |||||
| 65-45-12 |   |
65,000 | 45,000 | 12 | 40,000 |
| 80-55-06 |  |
80,000 | 55,000 | 6 | 40,000 |
| 100-70-03 |  |
100,000 | 70,000 | 2 | 40,000 |
| 65-45-12 HRDS | |
65,000 | 45,000 | 12 | n/a |
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