Gas cutting & grinding...
thickness 40 to 48 mm
photo i'm sending to your mail id..
thanks..
On Monday, 30 March 2015 14:13:56 UTC+5:30, vanchi wrote:
what method was used for joint preparation? gas cutting, grinding , machining ? what is the thk of joint.? can you take a photo of cracked joint and send. my mail id : vanchinaths @gmail.comOn Mon, Mar 30, 2015 at 12:30 PM, RK <krishn...@gmail.com> wrote:--Hi..We have used Dillimax 690PE material for our penstocks under construction.Experienced delayed cracking in welds (after a month or so) in all most all the welds...in all 3 welding processes used SAW, SMAW, FCAW...cracks are only in the welds!!!Process is PH 100-150 DegC, Interpass 200 Deg C and DHT 200-250 DegC for 3 hrs.Can anyone have any idea what could be the reasons?? we are in soup...and not able to proceed further..rgds
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