Oct 18, 2004 · With ERW pipe, all of the quality control and inspection in the world won't improve the Joint Efficiency Factor. With EFW pipe, the Efficiency Factor can be improved up to 1.0 …

Jan 31, 2019 · Client pipe specification gives options to use smls pipe or ewf pipe. should the fittings be specified as the pipe? Can smls pipe be welded to efw pipe? Can smls fittings be …

Jul 28, 2019 · The Code doesn't limit the application of the EFW pipe in any pressure rating. IMO, the EFW pipe application may be based on the pipe thickness due to the longitudinal weld joint …

May 1, 2006 · Hi We have specified 42” and 34” pipe in API 5L Gr. B EFW, with HIC resistant test complying with NACE MR0103, TM 02-84 and TM-01-77. The pipe is in a service where wet …

Oct 19, 2013 · But, as an alternative pipe manufacturer proposing ASTM B705 Class 1 EFW pipes with addition of filler metal. Since its deviation from the material standard, Client asking …

Mar 15, 2017 · I've got a small-diameter lethal service vessel per ASME Section VIII Div 1 with a 316SS metallurgy. I called for ASME SA312-TP316 EFW for the shell and nozzles, with 100% …

Dec 17, 2007 · I am trying to find which pipeline manufacturer's produced EFW pipe and for what years. Is there some sort of comprehensive list out there somewhere with this type of info? So …

Dec 14, 2021 · The below is our main confusion about EFW 1-The Project MTO description,is included different,EFW.ERW and SAW Pipes items. 2-If EFW is subsidery of SAW ,Why has a …

Jun 13, 2024 · Hi, Is it technically a bad option to go for SS EFW pipes for all sizes from 15NB and higher. I've referred few Pipe material Specifications where Seamless pipes are used upto …

Feb 27, 2002 · ERW pipe typically has a manufacturing tolerance of 0.01" while seamless has a tolerance of 12.5%. This will affect the wall thickness calculations. It is also easier for the …