S9074-AR-GIB-010/278
1. 2.
3/16-inch maximum build-up for wall thicknesses 1 inch and under: or 20 percent of wall thickness maximum build-up for wall thicknesses over 1 inch but not to exceed 3/8 inch. NOTE: These thickness limitations apply to the finished condition.
13.2.3 Nominal repairs. Nominal repairs an repair welds in excess of those outlined in 13.2.2 but which do not exceed l/2 the casting thickness. 13.2.4 Special repairs. Special Repairs are those repairs for which excavations of defects are more extensive than those classified as nominal repairs or those that extend through the thickness of the casting, or for which the use of cast inserts my be desired. 13.2.5 Authority for repair of castings. Authority to perform repair on castings by welding shall follows: Minor repairs may be mde at the discretion of the contractor or foundry. (a)
(b)
Nominal repairs of castings my be accoaplished without obtaining approval provided that in addition to the records required (see 13.2.10). the manufacturer. shall record the casting identification number. welding procedure number or title. welder identification, and name of the authorized representative. Special. repairs require advance approval of the authorized representative.
(c)
13.2.5.1 Repair procedures and report. Casting repairs shall be completed in accordance with 13.2.5. Upon completion of nominal and special repairs copies of records required by 13.2.10 shall be made available upon request. 13.2.6 Heat treated weld repairs. For ferrous castings which are to be heat treated at temperatures above the critical transformation temperature. weld repair using weld metal which is responsive to heat treatment may be accomplished prior to ' such heat treatment provided castings are given preliminary anneal or softening treatment to avoid welding in the as-cast condition. and the following operations may be performed in this condition: 13.2.6 Heat treated weld repairs. For ferrous castings which are to be heat treated at temperatures above the critical transformation temperature. weld repair using weld metal which is responsive to heat treatment may be accomplished prior to ' such heat treatment provided castings are given preliminary anneal or softening treatment to avoid welding in the as-cast condition. and the following operations may be performed in this condition: The authorized representative shall be notified that repair welding has commenced. The Govement representative reserves the right to reject castings where there is evidence that the provisions of this section are violated. NOTE: For nickel - aluminum-bronze castings. weld repairs (including post weld heat treatment) shall be in accordance with MIL-B-24480 (see 6.4.5).
a) Raeliograptw of tht castings. (b) Weld repair of the casting. (c) Re-radiography of weld repairs.
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