Publication Date:
2019-08-27
Description:
This presentation is an Existing Code Requirement: Charpy impact test at a temperature no higher than the design minimum temperature. The Current Practice: is not clear, the indications are that testing is sometimes performed at -320F (liquid nitrogen or "LN2") for that and all lower temperatures. In some cases testing is probably not performed and CGA indicated successful operation of systems at -453F without required test. The Ballot activity: C&S Connect Record 13-341, Ballot 13-1746, initially proposed Charpy testing (lateral expansion criteria) at -320F to validate use at -425 (liquid helium or "LHe"). and PTCS Proposal..
Keywords:
Chemistry and Materials (General)
Type:
HQ-E-DAA-TN60692
,
ASME B31.3 Process Piping Code Meeting; Sep 17, 2018 - Sep 19, 2018; Cincinnati, OH; United States
Format:
application/pdf
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