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thank you berkshire but the photo shows colours on a root and i do not understand what is usually allowed for colour. on the website i read " This level of colouration is specified in AS/NZS 1554.6 and AWS D18.1/D18.1M:2009 " do you know which European norm tells about what is allowed or not ...

hey ! is there anyone to give me any link to take a look on allowed colors on austenitic welds ? just to verify that the welder took the good diameter... :-)

grat thanks to kjell123898 i followed the link, the RT film is explicit ! not sure any operator can do it...

thanks to racookpe to answer about influence of parameters then if is not essential, it looks like not Unimportant. - in ASME code this is a variable ( not essential ) has it to be recorded in a pWPS ? - in European standard § 4 of ISO 15609-1 Technical content of a WPS, § 4.5.4 mentions as...

is there anyone knowing about TIG welding ceramic nozzles diameter parameter ? what is the result if the welder changes the diameter from 10 mm in WPS to 12 mm or more ? or 9 mm and less ? is it possible to qualify a TIG weld without recording this parameter ? thanking you serge

thanks to all not found yet, as suggested by weldstan, they should produce an oxidized coupon and perform a RT shot to get a reference sample.

thank you while searching for a link i found this : http://www.ge-mcs.com/download/x-ray/GEIT-30158EN_industrial-radiography-image-forming-techniques.pdf : very interesting but not yet found anything about " sugaring " or " root caking ". still looking for

hello there, anyone who knows where I can find some images of radio film with a defect of root welding called " rochage " in french and " sugaring " or oxidation in english ? is this type of defect easy to interpret on RT Films ? GTAW of stainless steel tubes butt weld and full penetration and...

yes, this stainless steel is cladded on low alloy steel like 20MnD5.

in fact, in place of 304H, stainless steel concerned is 18 to 25 Cr, 8 to 14 Ni and C around 0,6 content. there is a Ferrite content required from 5 to 20FN. will this ferrite content prevent a sensitization of this steel during a PWHT of 2 hours ?

thank you so much for the time you spent :-)

this is what i worried about ! a disaster...

how many time is necessary at 600°C to sensitize A182F304H ? carbon content is close to 0,06.

thank you so much for the time you took. i agree one hundred per cent with what you wrote. but i have now an other question ! if the ANI signs without asking to do any " full inclusion rating ", any " micro and inclusion rating " does it mean He is able to make miracle ? :-) you know also that...

" (4) The provisions of (a)(1) through (a)(3) above are performed in accordance with the Material Organization’s Quality System Program. (b) The provisions of (a)(1) through (a)(3) above may be performed by the Certificate Holder in accordance with his Quality Assurance Program. " (3) is not...

Concerning NCA-3855.5 Utilization of Unqualified Source Material is written : “a Material Organization may accept certification of the requirements of the material specification which must be performed during the melting, heat analysis, and heat treatment of the material, and may use or...