General Information - Welding Procedure Section 000-0010 3. Pre-heat area to 100° C (212° F), measured 3 - 4" either side of repair. Avoid local overheating. 3 - 4" either side of repair prior to gouging. On completion of gouging grind to remove thin carbon layer. 4. Weld completely using E-7016 electrodes. Care must be taken to ensure electrodes are protected from moisture pick-ups at all times. 2. Apply dye-penetrant check to ensure crack has been completely removed. 5. Allow repair weld to cool slowly. 3. Pre-heat area to 200° C (392° F), measured 3 - 4" either side of repair. Avoid local overheating. 6. Grind and blend repair to original contour. Paint heat damaged areas. 4.
Weld completely using E-7016 electrodes. Care must be taken to ensure electrodes are protected from moisture pick-ups at all times. The following general procedure should be used for the repair of defects in alloy steel castings and in the welds joining steel castings. 5. On completion of welding, post-heat repair area to 400° C (752° F), measure 3 - 4" either side of repair. 1. Completely ARC-AIR gouge or grind out the crack until sound metal is reached. If ARC-AIR method is employed, pre-heat area to 200° C (392° F), measure 6. If welding has to be interrupted for any reason, e.g. overnight, post-heat immediately as in Step 5. * * * * SM 2172 10-02 2