Hello everyone,
I'm having a problem with transverse cracks in carbon steel welds on a low pressure steam header for a sawmill drying kiln operation.
The header is 20" STD SA-106 Gr. B with 20x20x10 WPB reducing tee's on either end for 10" dirt legs and a 20" WPB pipe cap on either end. The...
Experts,
We recently completed welded repairs to an A-217 Gr. WC6 cast part for a high pressure boiler main steam application.
To make a long story short, our PWHT contractor inadvertently ran the part through the wrong heat treatment cycle with a batch of other parts.
The part should have...
Experts,
I cannot find stress values for SA-249 UNS N08367 in Section II Part D.
Am I just overlooking them or are they really not there?
I have found them for SB-676 UNS N08367.
Thanks in advance,
numberfive
Experts,
I am in the process of qualifying a temper bead welding procedure in accordance with Section IX QW-290 for P5A material.
One of the essential variables (QW-403.26) is an increase in the carbon equivalent of the base material using the equation: CE = C + (Mn/6) + (Cr + Mo + V / 5) +...
Experts,
We are currently installing a stainless steel cooling water system for a condenser consisting of 8" thru 20" sch. 10 pipe. All flanged joints are ductile iron backup flanges and gaskets are a compressed aramid fiber with nitrile binder.
At initial pressurization of the system (50psi.)...
Experts,
Can anyone tell me what the difference is between API 5L Gr.X42 and API 5L Gr.X42R?
Is there a difference?
Our project specs out API 5L PSL-2 Gr.X42 - this is what we ordered. What we received is marked Gr.X42R - the MTR also refers to Gr.X42R.
I'm looking in API Spec. 5L and can't...
Experts,
We have a non-asme stamped air-ejector condenser located at a customer's facility that has numerous leaks at the tube to tube sheet connections.
The tube attachment is nothing that I have ever seen before (see attached photo). I'm assuming that this acts as some kind of a compression...
Experts,
We have been asked to perform welded repairs on a deaerator vessel built in 1948. The vessel shell and head material is listed as "Copper Bearing Steel", no ASTM or ASME specification is given.
Aren't copper bearing steels typically used in outdoor weathering applications? (ie: corten...
Experts,
We have just been awarded a project for which part of the scope requires us to run approximately 800' of underground ASTM D2513 DR9 HDPE natural gas pipe. Design and construction is per ASME B31.3, 2012 Ed.
I believe that the manufacturer of the bonding machine that we will be using...
Experts,
I am being asked by a customer to fabricate two replacement tanks out of either 304 or 316 Gr. SS for a water demineralization skid for a boiler feed water application. The original vessels are constructed of SA-516 Gr. 70 and coated inside and out with a Plasite 7122 coating. These...
Experts,
Can anyone tell me where I can find the normalizing temperature required for SA-516 Gr. 70 plate?
I don't see anything in the SA-516 specification or the SA-20 specification.
Is this determined by the steel manufacturer?
Thanks,
numberfive
We are currently looking at a B31.3 natural gas compression station project.
The designer has specified A-333 pipe and compatible fittings (A-420 Gr. WPL6), forgings (A-350 Gr. LF2), and castings (A-352 Gr. LCB). The system is designed with a min. temp. of -50 deg. F.
If I understand Table...
Can anyone tell me why SA-182 Gr. F11 Cl. 3 is listed in ASME Section IX & II Part A but not listed in the stress values tables in Section II Part D, B31.1 or B31.3?
I have a data report (ASME Form U-1) for a pressure vessel built in 1964.
Line 4. "SHELL" is completed as follows: Material - A285, Gr. C /
T.S. - F.B. 55,000 / Nominal Thickness - 1/2 in. / Corrosion Allowance - None / Diam. - 9ft. 4in. / Length - 28ft. 0in.
In parenthesis under the space...
Under the heading "9.7.3 Welded Pipe Tests" NFPA 59A, 2009 Edition states in para. 9.7.3.1 - Longitudinal welded pipe that is subjected to service temperatures of -20 deg. F (-29 deg. C) shall meet one of the following requirements:
1 - It shall have a design pressure of less than two-thirds the...
I have an ASME Form U-1 for a pressure vessel built in 1947. The vessel is constructed of SA-212 Gr. B and is used for liquid propane storage.
In the remarks section the manufacturer states "Hammer tested at 300lb."
Does anyone know what this term means? Does it have to do with impact testing...
We are looking at designing and fabricating a "U" stamped hot water heater vessel as a replacement vessel for a 40+ year old unit installed at one of our customer's facilities. The existing vessel consists of an SA-515-70 shell, 5/16" thick with SB-111 (copper nickel) nozzles for attachment of...
One of our customers has asked us to fabricate a replacement air receiver tank for their facility. The existing vessel is designed for 125psi @ 650deg. F and is constructed of SA-455 material. I would propose using SA-516-70 for the construction of the replacement vessel due to availability...
