Welding defect
（重定向自Cold cracking）
![](/Images/godic/202501/05/Welding_cracks.svg5957.png")
![](/Images/godic/202501/05/Hat_crack.svg5957.png")
![](/Images/godic/202501/05/Welding_shrinkage_longitudinal.svg5957.png")
![](/Images/godic/202501/05/Welding_fillet_distortion.svg5957.png")
A welding defect is any flaw that compromises the usefulness of a weldment. There is a great variety of welding defects. Welding imperfections are classified according to ISO 6520 while their acceptable limits are specified in ISO 5817 and ISO 10042.