S9074-AR-GIB-010/278
13.
For hydraulic systems. RT is requid only when the design pressure exceeds 600 1b/in.
14.
Includes boiler tube to drum joints and superheater tube to header joints.
15.
Where unacceptable defects in pipe welds are located by partial radiography, the entire circumference of these welds shall be radiographed.
16.
See footnote 9 of table VII.
17.
See 10.3.12.
18.
See 10.3.13 for S-5l. S-52. and 5-53 material welds.
10.3.3 Class A Dressure vessels and class T turbines. Welded joints in class A pressure vessels shall be inspected as specified in table X. except welds in forced draft blowers shall be inspected in accordance with section 16. Welds in class T turbines shall be inspected in accordance with section 14.
TABLE X Class A pressure vessel inspection requirements.
Required Examination and Tests
Pressure Vessel Class
Weld Joint Type
MT/PT TEST 9
PRESSURE
RT
VT 10
Root Layer
Final Weld 7
Final Weld 7
Extent 8
Root Layer
Final Weld
2
100 percent of long and circ welds
Butt and other complete penetration welds
x
x
x
x
A-F A-1 A-2
x 3
x 4
Nozzles 2-1/2 inches and greater
x
360 deg.
x 4
x 3
x
x
x
A-F A-1 A-2
Nozzles less than 2-1/2 inches, pads and other attachments
x
-
x
x 4
-
-
x 3
Original 91
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