| Steel |
|
|
| Stainless Steel |
|
|
| Hardened Steel ≤ 54 HRc |
|
|
| Hardened Steel > 54 HRc |
|
|
| Cast |
|
|
| Graphite |
|
|
| Non Ferrous Material |
|
|
| HRSA |
|
|
| Titanium |
|
Recommended
Acceptable
Not Recommended