We recently purchased a LightWeld XR machine from IPGphotonics. Im trying to write a WPS in compliance with ASME Sec.IX. Couple of things im struggling with is confirmation of weld process (LBW or LLBW) and how to address fillet welds. The link below takes you to the IPGphotonics web site for...
Im trying to understand what rules must be followed to write a WPS containing more than one weld process from multiple single process PQRs. 200.4(a) paragraph 1 sentence 2 and paragraph 3 indicate that a WPS can have more than 1 welding process. Without looking at 200.4(b) yet, may this be done...
Can someone help me understand the following points regarding gasket/bolt design according to ASME Sec.VIII Div.1 App.2? Im dealing with a gasket manufacture that claims to follow this portion of the code when sizing gaskets/bolts but they seem to have some extra design criteria that I am trying...
Sorry if this is not the correct place to post this. I couldn't find an AutoPIPE forum to post this question in. The contractor we use to run stress analysis for jacketed pipe systems recently changed software from Ceaser to AutoPIPE. He now says there is no way to simultaneously run the jacket...
We are working on a Section VIII Div.1 carbon steel vessel that requires a Nickel alloy corrosion resistant weld metal overlay. For reasons I wont get into here we need to include the thickness of the overlay in the pressure design calculations as permitted by UCL-23(C). We would like to FCAW...
I know this is in a AWS forum but i need information in regards to ASME Sec.IX.
Does the JIMMY JAMMER seen in the attached picture really meet the ASME SEC.IX definition of semiautomatic welding as advertised, and not fall into the definition of machine welding?
Picture is taken from the...
Looking through B31.3 all the examples in APP.S seem to allow you to run the various load cases under the operating conditions and compare the results to allowable stresses at the operating temperature. However the over pressure protection section only requires you set your relief pressure at...
Can anyone help me clarify a few questions for me regarding the ASME Code Stress Output Plots that are generated by Compress (see attachment pg 9).
- Does "Inside" & "Outside" refer to the stress on the inside surfaces and outside surfaces of the shell/nozzle.
- From plots 8 & 9, does anyone...
Can someone explain the following statement from ASME B31.3 para.332.4.2 (a): "most severely strained material retains at least 10% elongation." Does this mean that if i have a material spec with a minimum elongation of 35% i can strain the material a maximum of 25% before i have to HT.
35%...
Im used to dealing with ASME code where tensile yeild and allowable stresses are clearly stated at various temperatures. Can someone explain to me how this handled in the SAE codes. Ive looked through them and the best i can find are "estimated" tensile and yield strength values from J1397. No...
Im having a hard time imaging the location and means of this stress in a U shaped convolution. Is this stress not the same as the longitudinal stress of an annulus pressure vessel with the same OD as the expansion joint, ID = OD-2*w, and a wall thickness equal to ply thickness? If not please...
I know the 2019 code changed the UCS-66 curve for as-forged flanges and now there is a series of stipulations to have a lower MDMT for flanges. My question is does UCS-66(C) prohibit the use of UCS-66(b)(1)(-c) for a temperature reduction below 0°F for as forged ferritic flanges?
Is there any part of code that says i cant use a hollow cylindrical SA-105 forging for nozzles as long as it meets the thickness requirements? Can it be assumed from UG-6?
I keep seeing That steam tracing and steam jacketing are not included in the India Boiler Regulation 1950.
http://thepipingtalk.com/2019/05/how-to-identify-ibr-equipments-and-piping/
https://www.pipingengineer.org/indian-boiler-regulations/
Can anyone show me how they can come to this...
We are fabricating some 2" XXS PED CAT II piping. For elbows, we are trying to buy SA-106 seamless from a PED approved vendor with an approved QC system in accordance with Ann. I 4.3, and have someone else bend the pipe into elbows. Would this satisfy the material requirements listed in the PED?
Ive read in multiple places that the following line from the PED:
With the drawing up and the signing of the EU Declaration of Conformity, the said manufacturer takes full responsibility for the product’s compliance with applicable laws.
Means:
That the manufacturer down to the very...
Can someone comment on their experience classifying Jacketed Pipe (JP) for PED
From Guideline B-04 it sounds like JP would be classified as a vessel if the fluid designed to flow through the core pipe (secondary fluid) was anything but air. If that is the case, Guideline B-19 would seem to...
Why does UG-34 not reference UW-13.2 for additional weld configurations. Are you allowed to use either of the corner joint configurations in these two sections for unstayed flat heads?
In figure UCS-66 under the requirements of curve B, it says "A/SA-105 forged flanges produced to fine grain practice and normalized, normalized and tempered, or quenched and tempered after
forging
Is this read like: (produced to fine grain practice and normalized), (normalized and tempered), or...
