All,
Researching acceptance criteria for pinholes and elongated indications open to the surface. The item in question meets acceptance standards for Appendix 6 for MT and Appendix 8 for LPT that can be open to the surface. UW-38 address repair of defects and states pinholes open to the...
Contamination of stainless steels by contact with carbon steels has been a issue for years. I do not fully understand contamination of the external surfaces of components that are not heated or welded.
First of all what is the main source of the contamination from the carbon steel.... carbon...
UW-11(a)(5)(b) states that spot RT shall be in accordance with UW-52.
UW-11(a)(4) exempts NPS 10” and under from spot RT and less than 1 -1/8” thickness
UW-52(b)(2) states than radiograph shall be taken for each welding operator.
If a welder is not represented by a radiograph but has welded...
What is the difference in the tooling for taper rolling and parallel pin rolling for expansion of heat exchanger tubes (ie. 16 gauge ¾” ss tubes). Does anyone have any photo references of each? Can you visually tell the difference between a taper or parallel pin rolling tools?
I am interested...
Does ASME Section VIII specify if RT is to be performed before or after PWHT. I have searched and have not found information supporting either.
Thanks for your input, I would like the code reference to your response.
WBH
I am looking for code based responses to this question.
Does B31.3 address restoration of thickness of pipe (not weld metal) by addition of weld metal?
Does B31.3 address sharp edges as stress rises, or state that welds shall be free from such?
Are there any limits to restoration after...
Is incomplete penetration rejectable by radiographic examination for normal fluid service to B31.3 Table 341.3.2 if the depth can not be measured (ex. inaccessible weld where depth can not be measured)? The length is acceptable. Depth can not be determined by radiographs
Acceptance criteria...
Interpretation of indications revealed by RT UW-52/UW-51
Example: 3/8" thick ss material radiographed to RT-4
1.0 Junction of girth seam and long. seam radiographed Per UW 11(a)(5)(b): shall meet the minimum requirements for spot radiograph UW-52
2.0 UW -52 slag inclusions/elongated...
