AISC Welding Recommendations
| ASTM Standard | Recommendations per AISC Design Guide 21 |
|---|---|
| A307, Grades A, B, C | If Supplemental requirement S1 is called out, then bolt should be weldable. If not, weldability is uncertain and should be investigated. |
| A325 | Not recommended |
| A354, Grades BC & BD | Not recommended |
| A449 | Not recommended |
| A490 | Always prohibited |
| F1554 Grade 36 | Should be weldable, but chemical composition should be investigated to make sure. |
| F1554 Grade 55 | If Supplemental requirement S1 is called out, the bolt should be weldable. If not, weldability is uncertain and should be investigated. |
| F1554 Grade 105 | Not recommended |
| Nuts & Washers | Can be problematic |