S9074-AQ-GIB-010/248 Rev 1
75° MAX
T = 3/16" MIN NOMINAL WALL
0" TO 1/16"
1/16" TO 3/16"
Qualification range limitation: 1/16-inch to 3/16-inch pipe wall
NOTES: 1. The joint design of an applicable, qualified welding procedure shall be employed. 2. Space restrictions may be omitted when welders are to weld piping without space restriction (see figure 7-21). This limitation shall be entered in the qualification records. 3. The weld should be made with the maximum size welding rod suitable for the position and thickness of the test assembly. 4. Mark pipe to ensure correct location of specimens or orientation for radiography. 5. If destructive testing is employed, after VT, weld face reinforcement may be removed and backing rings, when used, shall be removed prior to destructive testing per 5-4.2. Undercutting shall not be removed. Removal of root side reinforcement of one-sided welds with no backing is not permitted for root bends. When radiography is not employed for qualification evaluation, bend testing shall be conducted as follows: (a) Horizontal-fixed position pipe: (i) Face bends from the 45-degree and 225-degree positions (see figure 7-21). (ii) Root bends from the 135-degree and 315-degree positions (see figure 7-21). (b) Vertical-fixed position pipe: (i) Face bend from the 225-degree position (see figure 7-21). (ii) Root bend from the 135-degree position (see figure 7-21). 6. Minimum nominal wall thickness is used to indicate that the dimension is the minimum thickness based on the minimum pipe wall thickness allowed by the material specification. For example, 3/16 inch minimum nominal wall thickness would allow the use of any pipe wall considered 3/16 inch nominal even if the actual measured thickness was less than 0.187 inch.
Figure 7-13. Performance Qualification Test No. 3B for Fuel Gas Welding (Pipe)
Figure 13. Performance Qualification Test No. 3B for Fuel Gas Welding (Pipe).
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