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NAVSEA T9074 AD GIB 010/1688 : 0
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REQUIREMENTS FOR FABRICATION, WELDING AND INSPECTION OF SUBMARINE STRUCTURE
Hardcopy
English
01-01-1997
1 SCOPE
2 APPLICABLE DOCUMENTS
3 DEFINITIONS
4 QUALIFICATION REQUIREMENTS
5 QUALITY CONTROL AND RECORD REQUIREMENTS
6 INSPECTION REQUIREMENTS
7 INSPECTION ACCEPTANCE STANDARDS
8 INSPECTION OF MATERIALS
9 FORMED MATERIALS AND WELDS
10 WELDING MATERIALS
11 WELDING DESIGN
12 ERECTION REQUIREMENTS
13 WELDING REQUIREMENTS
14 WORKMANSHIP REQUIREMENTS
15 CASTINGS
16 REQUIREMENTS FOR MIL-120 AND MIL-140 SERIES FILLER
MATERIALS
Figure 1 - Typical contour for fillet groove tee welds and
fillet welds
Figure 2 - Functional diagram of submarine structure
Figure 3 - Examples of members for attachment welds
Figure 4 - Hard tank welds
Figure 5 - Clad areas for O-ring or gasket seating surfaces
Figure 6 - Quality control hull circularity measurement
record
Figure 7 - Complementary circularity measurements
Figure 8 - Partial circularity measurements
Figure 9 - Pressure hull fairness data sheet
Figure 10 - Record of frame dimensions
Figure 11 - Application examples of table 6-4, category
I.A.1.
Figure 12 - Examples of end intersection welds of, or
transverse welds in, beam-type or built-up
members
Figure 13 - MT inspection requirements for repair of full
penetration welds in the pressure hull envelope
where the total repair depth is greater than
1/3 T but less than or equal to 2/3 T
Figure 14 - MT inspection requirements for repair of full
penetration welds in the pressure hill envelope
where the total repair depth is greater than
2/3 T
Figure 15 - RT/UT requirement for flanged to unflanged frame
transitions
Figure 16 - Device for bend testing welded studs
Figure 17 - Nomograph of outside surface elongation after
bending or rolling
Figure 18 - Typical gages
Figure 19 - End-melt and corner-melt
Figure 20 - Contoured weld requirements
Figure 21 - Single fillet tee joint
Figure 22 - Penetration through special sandwich bulkhead
with solid filler
Figure 23 - Location of penetration attachment welds in
relation to butts and seams
Figure 24 - Inserts, patches, and small access plates in
pressure hull envelope
Figure 25 - Inserts, patches and small access plates in
plating and structure other than the pressure
hull envelope
Figure 26 - Inserts, patches, or small access plates in
pressure hull envelope which land on or cross
existing butt welds
Figure 27 - Drain, vent or permanent snipe opening
Figure 28 - Pressure hull frame tolerances
Figure 29 - Tolerance for unfairness of welded plate panels
Figure 30 - Weld repair of holes
Figure 31 - Temporary snipe in corner or connecting
structural member which intersects two or more
other members
Figure 32 - Temporary snipe in structural member connection
crossing a butt weld
Figure 33 - Patch plate detail for closing temporary snipes
in corner of connecting structural member which
intersects two or more other members
Figure 34 - Patch plate detail for closing temporary snipes
in structural member connection crossing a butt
weld
Figure 35 - Backgouged weld root and weld repair excavation
contours
Figure 36 - Suggested mechanical peening tools
Figure 37 - Typical weld repair configurations for castings
Figure 38 - Weld location examples
Table 6-1 - MT inspection requirements for HY and HSLA
materials
Table 6-2 - MT inspection requirements for higher strength
steel (HSS)
Table 6-3 - MT inspection requirements applicable to HY and
HSLA base material, mill defects and forming
Table 6-4 - RT or UT inspection requirements
Table 6-5 - Stud minor diameters
Table 7-1 - Undercut, end-melt and corner-melt
Table 8-1 - Electrode sampling plan
Table 9-1 - Cold-forming temperature requirements
Table 9-2 - Hot-forming temperature requirements
Table 10-1 - Filler materials for ferritic steels
Table 10-2 - Filler materials for welding ferrous materials
to non-ferrous metals and austenitic stainless
steels and for welding nickel base and copper-
nickel alloys
Table 10-3 - Filler materials for austenitic stainless-steel
alloys
Table 10-4 - Filler materials for wrought aluminium alloys
Table 11-1 - Weld joint design requirements
Table 11-2 - Maximum joint efficiencies for HY-100 or
HSLA-100 to HY-100 or HSLA-100 weld joints
Table 12-1 - Pressure hull frame tolerances
Table 12-2 - Tolerances for frame spacing
Table 12-3 - Alignment tolerance
Table 13-1 - Preheat and interpass temperature limits
Table 13-2 - HY and HSLA (welded with other than MIL-120 or
MIL-140 series filler material) heat input
limitations
Table 13-3 - Alternate heat input limitations
Table 13-4 - Stress relief procedure
Table 13-5 - Stress relieving parameters
Table 15-1 - NDT requirements for castings
Table 15-2 - RT acceptance criteria for ferrous castings
of carbon steel, corrosion-resistant steel,
cobalt-chromium-tungsten, and alloy steels
(including HY-80/100/130)
Table 15-3 - RT acceptance criteria for copper based
castings of nickel bronze, copper-nickel,
aluminium bronze, nickel-aluminium-bronze,
manganese bronze, and nickel-copper
Table 15-4 - RT acceptance criteria for tin-bronze castings
Table 15-5 - RT acceptance criteria for aluminium castings
Table 16-1 - Heat input guidelines when using MIL-120 series
filler material
Table 16-2 - Production weld process control verification
test matrix
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