| Class | Tensile | BHN Range | Applications |
|---|---|---|---|
| 25 | 25,000 lbs. | 170-229 | Small cylinder blocks and heads, pistons, clutch plates, pump bodies, gear boxes, housings |
| 30 | 30,000 lbs. | 187-241 | Automotive cylinder blocks, heads, liners, fly-wheels, clutch plates, medium duty brake drums |
| 35 | 35,000 lbs. | 207-255 | Truck cylinder blocks and heads, heavy fly-wheels and transmission cases, carriers |
| 40 | 40,000 lbs. | 217-269 | Diesel engine castings, liners, cylinders and pistons and heavy parts in general |
For our classes of Ductile Iron click here.