S9074-AR-GIB-010/278
2 When post weld heat treatllent or stress relief is performed, this inspection shall be a 11shed after heat treatment or stress relief. Where accessible. the imer face shall be MT/PT inspected and the inspection shall be performed after any aach1ning operations.
3
Inspection required when specified 1n drawing, shipbuilding, or component specification.
4
Ur may be substituted for RT when approved.
5
For Class M2.category B welds in Ship Stores Refrigeration Plant, structural components of S-1 terials, VT of the final weld uy be substituted for the requ1red MT inspections.
6
See 10.3.12.
7
See 10.3.13 for S-51, S-52,and S-53 material welds.
10.3.2 Class P ~i~inq. Welded joints in class P piping systens shall be inspected as specified in table IX.
TABLE IX. Class P piping inspection requirements
Required examinations and tests
Piping Class
Pipe Size. inches nps
Welded Joint Type
VT 18
MT PT TEST 17
Pressure
RT
Root Later
Final Weld 16
Root Later
Final Weld 5
Final Weld 3
Extent 15
11
X
Lethal or Gasoline
-
X
X
All
X
X4/
360 deg.
Butt
P - 1 and P - LT 12
X
>3-1/2
X4/
X 13/
-
X
X
360 deg.
Butt
X 6/ 7/ 13/
60 deg. min.
2-1/2 to 3-1/2 inclusive
-
X4/
X
X
X
X 6/ 7/ 8/ 9/ 13/
60 deg. min.
X
<2-1/2
X4/
X
X
-
Sockets, fillets 14, and other attachements
-
-
X
X
X
X4/
All
-
Original 88
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