Please find below the requirement from Power Piping ASME B31.1
Please find below the Requirement from ASME Sec.VIII Div.I
Thanks & Regards
J.Gerald Jayakumar
0091-9344954677
On Monday, October 23, 2017, 6:28:03 AM GMT+4, Kannayeram Gnanapandithan <kgpandithan@gmail.com> wrote:
If you do not go for SR, then you have to do preheat otherwise no. Pl ref PW39
On 23-Oct-2017 7:49 am, "'james gerald' via Materials & Welding" <materials-welding@googlegroups.com> wrote:
--Both Chromium and Molybdenum increases hardenability(propensity to Brittleness) and hence required to be pre-heated.Please follow below guidelines table.Thanks & Regards
J.Gerald Jayakumar
0091-9344954677
On Sunday, October 22, 2017, 1:46:51 PM GMT+4, 'Sankaran Sp' via Materials & Welding <materials-welding@ googlegroups.com> wrote:--Dear Mr.Rameez,T12 is alloy steel and it is having additional alloying elements with Cr,Mo combinations, hence pre- heating is advisable before welding.Regards,Sankaran.SPOn Tuesday 10 October 2017, 8:01:14 AM IST, Rameez khan RK <rk.rameezkhan21@gmail.com> wrote:Dear Experts,--can any one tell me pre-heating required for T12 material blow 6mm . This material in boiler water wall . Please tell me with standard and where i found this in ASMETHANKING YOURAMEEZ
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