7018-1 is not for more than -45 deg celsius
THANKS & BEST REGARDS,
KG.PANDITHAN, BE, IWE, CSWIP 3.1,
ISO 9712 Level 2 in VT,
ASNT-Level II in PT,MT,RT & UT,
LA ISO 9001-2015,
International Welding Engineer.
CONSULTANT-WELDING & QUALITY
Mobile no: +919940739349
On Fri, Oct 8, 2021 at 8:44 AM Ahmed Rashed <arashed@qituv.com> wrote:
Dears,I made PQR material A333 GR.6 (6" STD) welded by GTAW for Root pass (ER70S-6) and SMAW (E7018-1) for filling and cap according to ASME IX , B31.3.Tensile test and bend test passed.Impact test failed (for weld metal Av. 12 J) and for (HAZ Av. 8 J) at -55.6 degree celsius.I don't know why the impact test failed !!!!!--On Thu, Oct 7, 2021 at 2:34 PM 'Prakash Hegde' via Materials & Welding <materials-welding@googlegroups.com> wrote:HiIn addition some time there is possiblity of improper.Heat treatment received to Forging and casting causing non uniformity of.req.grain structure for total cross section Causing failure in Impact test--RegardsHegde
On Thu, 7 Oct 2021 at 15:02, J Prinsen<weldtech@online.nl> wrote:No it is not,Something went wrong with the thermal cycle during welding, heat-input/interpass to high will break down the impact thoughnessRegardsJurgen Prinsen IWEMetallurgist and welding engineerVan: "QA/QC" <adnanziad49@gmail.com>
Aan: "materials-welding" <materials-welding@googlegroups.com>
Verzonden: Donderdag 7 oktober 2021 10:16:23
Onderwerp: [MW:32549] IMPACT TEST FAILLUREDEAR MASTERwe have a test coupon 7.11 thichness with flange a106 with a105nduring mechanical test the impact test for FLANGE FAILLURE IN HAZ IN 3 POINT £IS IT ACCEPTABLE--
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