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Material Grades
Ductile Iron (Nodular / SG Iron) with ASTM A536 spec or equivalent
| Grade 60-40-18 |
Grade 65-45-12 |
Grade 80-55-06 |
Grade 100-70-03 |
|
|---|---|---|---|---|
| Tensile strength, min, psi | 60 000 | 65 000 | 80 000 | 100 000 |
| Tensile strength, min, MPa | 414 | 448 | 552 | 689 |
| Yield strength, min, psi | 40 000 | 45 000 | 55 000 | 70 000 |
| Yield strength, min, MPa | 276 | 310 | 379 | 483 |
| Elongation in 2 in. or 50 mm, min, % | 18 | 12 | 6 | 3 |
Gray Iron with ASTM A48 spec or equivalent
| A48 Class 25 |
A48 Class 30 |
A48 Class 35 |
A48 Class 40 |
|
|---|---|---|---|---|
| Tensile strength, min, psi | 25 000 | 30 000 | 35 000 | 40 000 |