Hello all,
We have been trying to complete a PQR for super duplex pipe. As per client specification this PQR must pass G48-A 40degC. We have passed all other testing requirements, except for the G48.
Pipe: ASTM A790 USN32750
Size: 200NB sch 40 and 200NB sch 20
Position 5G vertical up
backing...
I have a pipe pipe line I am inspecting on, construction code is AS2885.2 T1. The pipe is 457mm OD and was meant to be 15.9mm wall thickness. Pipe is AIP 5L X70 grade seamed pipe. I have come into this job after 3Km of pipe has already been welded and now I have found the pipe to only have a...
Hello All,
I have a question regards range of diameters when qualifying a PQR, if I run a PQR on 300NB STD pipe will the DIAMETER range on the WPS be unlimited. As long as the welder is qualified using the right diameter pipe for the job.
Example: if I was to do a PQR on 300NB pipe as long as...
I have a metallurgy questing that I was hopping you may be able to clear up for me.
I have a few Duplex 2205 S31803 welds that have been subject to ferrite testing. The testing was conducted using a Fischer Feritscope MP-30. The client specification stipulates that a ferrite percentage (%) of...
Hello everyone,
My question is about thickness rage on WPS. If I qualify a PQR on pipe with wall thickness of 10.97mm. The PQR is qualified to ASME IX and the actual job is ASME B31.3. And impact testing was required CVN apply.
According to ASME IX my thickness rage is 10.97mm to 21.96mm but...
Hello all,
I am trying to develop my first clad PQR. The base material is, ASTM A516-70N. I then cladded this plate with inconel 625. We then prepared the plate for a single vee bevel and welded the butt, using ERNiCrMo-3 GTAW wire.
My question is: on the WPS what P member will the bas...
I am trying to work out the PWHT heating / cooling rate the material is SA302 Grc 25mm thick. Welding using E9018-G.
I can see on table 132.1.1-1, shows' holding times but only for P3 G 1 and 2 not for P3 G3. SA302 Gr C is P3 G3?
ASME 1 PW-39-1 also shows minimum holding times, but where do I...
I have recently had to develop some weld PQR’s on 22% duplex steel. The weld metal and HAZ was subjected to chatty V notch impact testing to minus 60 degrees Celsius. On the first weld the impact test pass with average Jules in HAZ of 90J and around 1.48mm expansion.
I’m the full repair (so...
Hello all,
I have a PQR 22%Cr DSS to A333 Gr6 pipe I want to get this PQR qualified to AWS D1.6 and ASME IX.
In the client spec there is requirement for hardness testing for A333 Gr6 at around less then or equal to 250 and for the DSS the hardness is equal to or less then around 350.
What...
Hello all and thanks for the forthcoming help once again.
My question is about amp and volt rang from what was recorded on the PQR to what goes into the WPS. I can not find any where in ASME IX where a set range is specified. I go to QW 256 (essential variables for GTAW)and I see a CHANGE in I...
Hello,
I am trying to work out where in ASME B31,3 I can get the minimum required impact values for charpy-v testing. I have looked in table A-1(m). my material is P10h Group 1 (25%DSS). I see the minimum temperature is -50C then impact testing is required. I have to test my welds to -60C.
so...
Hello all.
I have just stared as welding QA. I have been working as Welder for 11 years ans my first job is to develop PQR for our client. welding must be qualified to ASME IX construction code is B31.3.
client specification is impact testing must be conducted at -60deg C
all material is A790...
Hello All,
I have several PQR's to try and develop. the PQR's need to cover a rang in thickness form 3.17mm to 30.96mm. All material is A182-F51 and A790, both thies grades come uner Pno:10H group 1 to Pno:10H grounp 1.
The Pqr's wil be subject to impact testing and hardness testing.
I have...
