Jun 23, 2023 #1 richissa Mechanical Nov 5, 2013 30 0 0 US Hello, Ca anyone direct me where to find the Material's Allowable Stress for 2" SA-178-A schedule 40 with design temperature of 700F? Thanks Richard
Hello, Ca anyone direct me where to find the Material's Allowable Stress for 2" SA-178-A schedule 40 with design temperature of 700F? Thanks Richard
Jun 25, 2023 #3 MJCronin Mechanical Apr 9, 2001 5,087 1 36 US I am guessing here,.... But I believe that this question is about boiler tube SA178 A is an ERW (electric resistance welded) low carbon steel boiler tube used in super heaters, water wall panels, heat exchangers, condenser At 700F, this carbon steel tube has a fairly low code allowable stress .... MJCronin Sr. Process Engineer Upvote 0 Downvote
I am guessing here,.... But I believe that this question is about boiler tube SA178 A is an ERW (electric resistance welded) low carbon steel boiler tube used in super heaters, water wall panels, heat exchangers, condenser At 700F, this carbon steel tube has a fairly low code allowable stress .... MJCronin Sr. Process Engineer
Jun 25, 2023 Thread starter #4 richissa Mechanical Nov 5, 2013 30 0 0 US Correct. This is inside an Economizer. Code B31.3 Upvote 0 Downvote
Jun 26, 2023 #5 GBTorpenhow Mechanical Jan 26, 2022 231 0 16 US A178 A isn't shown in B31.3. A179 (same UNS, but seamless) is listed at 12.4 ksi @ 700F. Don't forget to take the 15% hit for ERW. Upvote 0 Downvote
A178 A isn't shown in B31.3. A179 (same UNS, but seamless) is listed at 12.4 ksi @ 700F. Don't forget to take the 15% hit for ERW.
Jun 26, 2023 Thread starter #6 richissa Mechanical Nov 5, 2013 30 0 0 US Great, Thank you. I couldn't find A178 in B31.3 Table 1 Upvote 0 Downvote
Jun 26, 2023 Thread starter #7 richissa Mechanical Nov 5, 2013 30 0 0 US Correction... Table A-1 Upvote 0 Downvote
Jun 26, 2023 #8 GBTorpenhow Mechanical Jan 26, 2022 231 0 16 US SA178 A would probably be in ASME BPVC Section II Part A. The subject material being intended for use in boiler tubes and being "inside an economizer" sounds to me like equipment vs piping, i.e. ASME BPVC vs B31.3. Upvote 0 Downvote
SA178 A would probably be in ASME BPVC Section II Part A. The subject material being intended for use in boiler tubes and being "inside an economizer" sounds to me like equipment vs piping, i.e. ASME BPVC vs B31.3.