Definition
A broken, jagged, or straight line appears as a tear, fracture, or fissure in the weld or base metal is called Crack.
Please Note that cracks are the most serious defect.
Preventive Action
1. Remove contaminants from the joint (rust, grease, moisture, etc.) prior to welding.
2. Apply and maintain required preheat.
3. Do not allow the base material to cool too quickly.
4. Maintain filler metal control requirements.
5. Use correct filler metal type for the joint.
6. Apply proper bead size and sequencing to eliminate excessive distortion and/or stress in the base material.
Corrective Action
Repairs should be carried out according to local regulations.
