Nodular Graphite
| Meehanite Nodular Graphite Type |
|||||
| Iron Type | Tensile | Yield | Elongation | Heat Treatment | Brinell Hardness |
| SF 60 | >60,000 PSI | >45,000 PSI | 15-20% | Ferritize Anneal | Up to 160 |
| SP 80 | >80,000 PSI | >60,000 PSI | 3-10% | Optional | Up to200 |
| SH 100 | >100,000 PSI | >70,000 PSI | 1-5% | Optional | Up to240 |
| Standard Ductile Iron Specifications | |||||
| Iron Type | Tensile | Yield | Elongation | Heat Treatment | Brinell Hardness |
| 60-40-18 | 60,000 | 40,000 | 18% | Ferritize Anneal | 170 max |
| 65-45-12 | 65,000 | 45,000 | 12% | None | 156-217 |
| 80-55-06 | 80,000 | 55,000 | 6% | None | 187-255 |
| 100-70-03 | 100,000 | 70,000 | 3% | May Be Normalized | 241-302 |
| 120-90-02 | 120,000 | 90,000 | 2% | Quench & Temper | As Specified |