Gouge Repairs.

Gouges in cut base metal edges that are 7/16”(11mm) deep or less, where the surface is required to be flat.

 

1.        If the gouge meets the tolerance of greater than 3/16”(5mm) and less than 7/16”(11mm) from the cut edge, welding with shielded                                                               metal arc welding (SMAW) is required.  If gouge is less than 3/16”(5mm) deep from the cut edge see below for other solution.

 

2.        If the gouge is less than 3/16”(5mm) from the cut edge, grinding to a slope of one inch (25mm) is acceptable.  No welding required.

 

3.        Preparation is required for welding, including: air-arc gouging or grinding to the bottom of the burn.  Preheat is required.

 

4.        If welding is required, then magnetic particle testing (MT) and/or ultrasonic testing (UT) is required.

 

5.        For additional information on plate conditioning, the engineer is referred to ASTM A6 section 10.2 and any references contained therein.  For those repairs requiring welding, section 10.5 in ASTM A6 should also be reviewed.