| Carbon | Manganese | Silicon | Nickel | Chromium | Molybdenum | Copper | Phosphorus | Sulfur |
|---|
|
As Cast or As Cast and Stress Relieved |
Hardened or Hardened and Stress Relieved | Softened, max | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Level 1 | Level 2 | ||||||||||
| HB | HRC | HV | HB | HRC | HV | HB | HRC | HV | HB | HRC | HV |