Brinell Parameters
Pier Foundry offers all ASTM grades of Gray, Ductile & Austempered Ductile Iron.
| Iron Type | Classification & Specification |
Tensile Strength (psi) |
Brinell Hardness Range (BHN) |
|
|---|---|---|---|---|
| Gray Iron, ASTM A-48 | Class 25 | 25,000 | 170-229 | |
| Class 30 | 30,000 | 187-241 | ||
| Class 35 | 35,000 | 207-255 | ||
| Class 40 | 40,000 | 217-269 | ||
| Ductile Iron, ASTM A-536 | [1] | 60-40-18 | 60,000 | 170 Max |
| 65-45-12 | 65,000 | 149-207 | ||
| 80-55-06 | 80,000 | 187-255 | ||
| [2] | 100-70-03 | 100,000 | 241-302 | |
| Austempered Ductile Iron, A-897
Grade 1
Grade 2
Grade 3
Grade 4
Grade 5
|
125-80-10 | 125,000 | 269-321 | |
| 150-100-07 | 150,000 | 302-363 | ||
| 175-125-07 | 175,000 | 341-444 | ||
| 200-155-01 | 200,000 | 388-477 | ||
| 230-185-00 | 230,000 | 444-555 | ||
Note 1: Must be heat treated to achieve elongation
Note 2: Depending on metal section, heat treating may be required to achieve these specifications.
Contact Pier Foundry for details on special grades or special alloys.