Production Impact Tests ASME VIII, Div.1
Production Impact Tests ASME VIII, Div.1
(OP)
How does industry handle production impact tests on carbon steel vessels?
Besides needing impact tested material and WPS & PQR, how is the production piece handled?
i.e. how do you test production welds? Do you need to re-test the material? HAZ of base metal?
Any input would be greatly appreciated.
Besides needing impact tested material and WPS & PQR, how is the production piece handled?
i.e. how do you test production welds? Do you need to re-test the material? HAZ of base metal?
Any input would be greatly appreciated.





RE: Production Impact Tests ASME VIII, Div.1
Fabricate a weld coupon using the weld procedure and heat treatment specified in production and submit for CVN impact testing, following the CVN impact test requirements of the original code of construction for the vessel. I recommend you review ASME Boiler and Pressure Vessel Code, Section VIII, Div 1, Part UCS-67.
RE: Production Impact Tests ASME VIII, Div.1
additonal question: do you need to make a test coupon for each heat number and different item? Vessel may be SA-106 Gr.B, SA-105, SA-516 Gr.70. Do you need a test coupon for say 8" pipe to ANSI flange, 3" pipe to 8" pipe, 8" pipe cap to 8" pipe, etc.?
RE: Production Impact Tests ASME VIII, Div.1
Both of these codes of construction provide specific details on low temperature service and impact testing requirements.
RE: Production Impact Tests ASME VIII, Div.1
If you are working to ASME Sec VIII, you must perform a production test on material from one of the heats used in production. Only category A and B welds must be represented, so, only welding processes used for those applications must be tested.
Th rules are detailed in UG 84.
RE: Production Impact Tests ASME VIII, Div.1
The problem is an A.I. once gave me some incorrect info.