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API 653 Data Sheets-Dimensions Group 1
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Linings- Typically anchor profile of steel surface required for the installation of a tank bottom lining 652: 7.5
1.5-4.0 mils
Welds- Maximum undercut of a vertical weld & nozzle weld 650: 8.5.2.b
1/64"
Welds- Maximum undercut of a horizontal weld 650: 8.5.2.b
1/32"
Welds- Maximum diameter of a surface porosity cluster 650: 8.5.2.c
3/32"
Weld Qualification- Max allowed discontinuity in a bend test IX: QW-163
1/8"
Nameplates- Minimum size of name plate letters 650: 10.1.1 & 653: 13.1.1.1
5/32"
Bottoms- Minimum external projection of bottom plate on an existing tank (from toe of shell-to-bottom FW) 653: 4.4.5.7
3/8"
Reconstruction- Max amount of peaking allowed in vertical welds 653: 10.5.4
1/2"
Shell Calcs- When calculating tmin for shell LTA, minimum distance away from a weld where "E" is always 1.0 653: 4.3.3.1 (definitions)
> 1" or 2t
Shell Patch- Minimum overlap of shell lap-patch used to cover a hole (edge of hole to edge of patch) 653: 9.3.2.3
1"
NDE- When performing a PT examination, minimum distance to clean beyond the area to be examined V: T-642.b
1"
NDE- When performing a MT examination, minimum distance to clean beyond the area to be examined V: T-741.1.b
1"
Reconstruction- Maximum amount of banding allowed in a horizontal weld 653: 10.5.5
1"
Bottoms- Minimum overlap required for single-welded lap joints 650: 5.1.3.5
1"
Bottoms- Minimum external projection of bottom plate on a new tank 650: 5.4.2
2"
Vacuum Box- Minimum overlap of previously test surfaces when using a vacuum box650: 8.6.5
2"
Bottom Patch- Minimum overlap of bottom lap-patch fillet weld to the nearest existing bottom weld 653: Fig. 9.13
2"
Bottom Patch- Minimum distance bottom lap-patch fillet weld to the nearest existing bottom weld 653: Fig. 9.13
2"
Shell Patch- Minimum radius of a shell lap-patch 653: 9.3.1.4
2"
Reconstruction- If reusing bottom plates, minimum distance to cut from existing bottom welds (if plates are not deseamed) 653: 10.3.2.1
2"
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Author
egf4201
ID
328279
Card Set
API 653 Data Sheets-Dimensions Group 1
Description
API 653 Data Sheets-Dimensions Group 1
Updated
2017-02-09T13:46:03Z
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