From the day 1 April 2013, is in effect the 2013 version of the standard ASME B16.34; follows a summary of the main changes.
2.1.1 Subparagraphs (a) and (f) revised
2.4 Revised
4.2.7 Revised
6.2.2 First paragraph and subparagraph (b) revised
Fig. 5 Penultimate value in second row corrected by errata
Table 1 (1) For material Group No. 2.1, A351 CF3 added under Castings
(2) For material Group No. 2.2, A351 CF3M added under Castings
(3) For material Group No. 2.3, A351 CF3 and A351 CF3M deleted
under Castings
(4) For material Group No. 2.5, A351 CF8C deleted under Castings
Table 2-1.3 Note (8) revised
Table 2-1.7 Note (3) revised
Table 2-1.9 Note (4) revised
Table 2-1.10 Note (4) revised
Table 2-1.13 Note (2) revised
Table 2-1.14 Note (2) revised
Table 2-1.15 Note (1) revised
Table 2-2.1 Material A351 Gr. CF3 and Note (2) added
Table 2-2.2 Material A351 Gr. CF3M added
Table 2-2.3 Material A351 Gr. CF3 and A351 Gr. CF3M deleted
Table 2-2.5 Material A351 Gr. CF8C deleted
Table 3A First value under Class 900 column revised
I-1.1 Revised
I-1.5 Reference revised
Table VII-2-1.3 Note (8) revised
Table VII-2-1.4 Note (5) revised
Table VII-2-1.7 Note (3) revised
Table VII-2-1.9 Note (4) revised
Table VII-2-1.10 Note (4) revised
Table VII-2-1.13 Note (2) revised
Table VII-2-1.14 Note (2) revised
Table VII-2-1.15 Note (1) revised
Table VII-2-2.1 Material A351 Gr. CF3 added
Table VII-2-2.2 Material A351 Gr. CF3M added
Table VII-2-2.3 Material A351 Gr. CF3 and A351 Gr. CF3M deleted
Table VII-2-2.5 Material A351 Gr. CF8C and Note (3) deleted
Mandatory Appendix VIII (1) Reference ASME B16.47 added
(2) Reference ASTM E142 deleted
Table A-1 NPS 32 through 50 values added
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