| Dear Senthil, Height is not an essential, for welder qualification,as per to the SEC IX no height is prescribed, but position is essential. P.B.R. -------Original Message------- dear sir , i want prescribed height for fixing test coupon' for welder qualification as per ASME Sec-IX. thank u sen On Mon, Apr 18, 2011 at 8:37 AM, Raj <raj.inspection@gmail.com> wrote: Hi, No, there is no mandatory requirements regarding 'calibration certificates', 'prescribed height for fixing test coupon' for welder qualification as per AWS D1.1 or ASME Sec-IX. Cheers! Raj On Apr 18, 7:07 am, SENTHIL P <senbe...@gmail.com> wrote: > Dear sir, > i wish to know the general procedure for welder > qualification.e.g calibration certificate .is any precribed height for > fixing test piece for qualification. please clarify. > > thank u, > sen To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com For more options, visit this group's bolg at http://materials-welding.blogspot.com/ The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents. To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com For more options, visit this group's bolg at http://materials-welding.blogspot.com/ The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents. |
Hi, You are correct, Minimum refers to the one cycle for which this part will expose until final work shop PWHT. hence mill test certificate shall include this. Max. SPWHT, refers to additional cycles of heat treatment that are reserved for future repairs during equipment lifetime. Again, these simulated no. Of cycles shall be specified in MTC. The idea is we need to make sure that steel mechanical properties are not compromised upon exposure to multiple repairs (i e 4 cycles in your case). One could say, if steel is subjected to 4 cycles and is ok, then it should by defacto be good for one cycle, yet, this is wrong assumption cause mechanical problems and microstructure of materials varies accordingly based on no. Of cycles for which material will expose. This is apparent in alloy steel and especially for impact test values as an example. In your case, this forged CS with properties before PWHT can be understood to be " as forged" condition (i.e. Wit...
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