– Mismatch between patch and parent material can cause high stresses.
This is where the concept of the becomes essential. Contrary to what the phrasing might initially suggest, "ASME Standard Patched" does not refer to a specific, off-the-shelf product called a "patched." Instead, it refers to a repair methodology governed by the ASME Post-Construction Standards , specifically ASME PCC-2 (Repair of Pressure Equipment and Piping) , and the ASME Boiler and Pressure Vessel Code (BPVC) . asme standard patched
(Repair of Pressure Equipment and Piping), as well as managing document revisions under ASME Y14.35 1. Physical Repair: Pressure Vessel Patching – Mismatch between patch and parent material can
: Defines the methods for identifying and recording changes to drawings. Revision History (Repair of Pressure Equipment and Piping), as well
Any repair material must have allowable stress and toughness at least equal to the original component. Compliance Hierarchy