(2) Two or more smaller areas, each of which results in interface
back reflection exceeding the reject/repair line, and which cannot
be contained within a circle of 150 mm 6 inch diameter unless
separated by a distance equal to the maximum dimension of the
larger detective area.
(3) Any area that results in an interface back reflection
exceeding the reject/repair line and that is closer than 50 mm 2
inches or less to any point at which penetrations are to be made
through the cladded thicknesses.
c. Lack of fusion criteria shall apply to areas at which cladding is
overlaid on the base plate by a fusion welding process. Lack of fusion
type flaws include:
(1) Any area that results in an interface back reflection
exceeding the reject/repair line and that cannot be contained
within a circle of 150 mm 6 inch diameter.
(2) Two or more smaller areas, each of which results
in an
interface back reflection exceeding the reject/repair
line, and
which cannot be contained within a circle of 150 mm 6
inch
diameter unless separated by a dimension equal to, or
greater than
the larger defect.
(3) Any in-line inclusions in the overlay, 25 mm 1 inch long or
equal to 1/2 the plate thickness, whichever is greater.
(4) Any area that results in an interface back reflection
exceeding the reject/repair line that is closer than 50 mm 2 inches
or less to any point at which penetrations are to be made through
the cladded thickness.
3.4
REPAIRS AND REPLACEMENT
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NOTE: The designer will indicate or specify,
directly or by reference to a suitable publication,
the limiting dimensions for repairable defects.
Where no applicable specifications exist, repairs
will be limited to those areas at which their depth
extends within 3/8 the plate thickness of the
surface.
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Plates containing defects in excess of the limit specified shall be
replaced on a one-for-one basis or, at the Contractor's option, may be
repaired if such defects are within the limits shown in TABLE I. [When
plates are inspected on a lot basis, each plate in the lot shall be
individually inspected if more than one plate in the representative sample
is found defective.] Repairs shall be reexamined by the same procedure
originally used to detect the faults, and the repairs must conform to the
standards listed in paragraph ACCEPTANCE/REJECTION LIMITS.
SECTION 05092A
Page 22