Dear All,
Please help to find the solution that we required ASTM B705 Class 1 UNS08825 (thickness 9.53 & 6.5 mm)EFW pipes for our project. As per B705 Pipe shall be made from flat-rolled alloy by an automatic
welding process with no addition of filler metal.
But, as an alternative pipe...
Dear Friends,
Please help me to get the Standards UNI5737,UNI 5588 & UNI 6592 ( Bolt , Nut & Washer) for reviewed and confirm the supplied materials from stockiest.
I couldn't able find these standards.
Dear Friends
I am proposing clinet mentioned electrodes E6010 (root )& E7018 ( hot & Fill) in X52 material for cross country pipeline.
I request to provide clarification in the below given statemnt in project specification,specially on this statement "in the heat treat condition to be used in...
Dear
Thanks for your kind response,
As per Data sheet by vendor shaft material AISI4140,nothing more they mentioned. when I searched in Google i found teh below,but equivalent ASTM standard is ASTM A29, but material used by vendor for shaft is ASTM A434 Class BB.
Dear All,
Good Day,
Please provide AISI 4140 Standard for my reference.
Further to above, we received Pump from vendor, in that the shaft material used is ASTM 434 Class BB, but our data sheet mentioned as AISI 4140. Inorder to clear the material inspection, i need to clarify the client as both...
Thanks lot for more clarity on ERF and I understood.
Yes, I don't have exposure of ASME B31G and i never worked in it.
I have one more question, can you please clear it?
Is it correct, instead calculating the ERF, can I go with ASME B31G,clause 3 TABLES OF ALLOWABLE LENGTH OF CORROSION
The...
Thanks, noted. This criteria "ERF > 1 indicates repair is required, or MAOP must be reduced" in which clause of ASME B31G mentioned. I couldn't found in code.
Dear All,
we found corrosion in our pipeline, hence we performed ILI-MFI and found ERF less than 1 as per ASME B31G.
When I referred ASME B31G, I couldn't find ESTIMATED REPAIR FACTOR(ERF) criteria.
Please clarify in which clause ERF (ERF less than 1 or greater than 1)criteria is specified in...
Dear Friends,
We Planned to Used the RMD Miller with ER70S6 wire for Root welding Downhill.Please help me find and WPS and Advise below requirement
1.Root Gap
2.Wire Dia for root
3.Speed
4.Mode of metal Transfer In RMD Miller
5.Gas Flow
6. Gas Mixure
7. Advantages and Disadvantages
Dear friends,
We ordered API 5L Gr.B PSL-2 seamless pipes of varies sizes to a manufacturer.
As per project specification, pipes to be impacted at -18 deg C as per the requirements of API 5L.
Manufacturer done the impact test on the pipe of dia. greater than 3 inches pipes only and he refused...
Dear Friends,
I done procedure qualification for piping with P No.1 & G No.1 materialas per section IX.In my project i am have P No.1 &
both G no.1 & 2.Impact test is essential in my project.While got the approval for final WPS,I mentioned both G no.1&2 and got approved.
Question No.:1...
Thanks Weldstan,
Means it is not specified in codes. Its only owner's requirement, I am correct weldstan?
My project also having impact test requirement, but I done welding in 2 inch X 5.54 mm thick pipe without doing separate qualification. If tomorrow they will not accepts this, what...
Thanks weldstan,
Then why most of the company doing separate qualification for GTAW process,if codes permit to do weld.Is there any restriction in this?please clarify.
Dear Friends,
I qualified one PQR with GTAW+SMAW process as per ASME sec -9 for station piping work.In that Root & Hot pass with GTAW and remaining with SMAW. Please find given below PQR data
1. Test Coupon - 6 inch X 7.11 mm thick
2. GTAW Deposited weld metal in Root & Hot pass-4.22 mm...
Which dimension i will take.shall I consider B-C for thickness measurement in this chart.20 x 2 sch 40 is the dimension my weldolet means which NPS I have consider in the chart?20 or 2
