ASTM A519 Grade: 4145
Chemical Requirements
| Grade | C | Mn | P | S | Si | Cr | Mo |
| 4145 | 0.43-0.48 | 0.75-1.00 | 0.040 | 0.040 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
ASTM A519 Grade: 4145
Chemical Requirements
| Grade | C | Mn | P | S | Si | Cr | Mo |
| 4145 | 0.43-0.48 | 0.75-1.00 | 0.040 | 0.040 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |