Search results for query: *

Dear All, As far as ToFD has many advantages for identification of defects and traceability, are there possible defects type for which ToFD is not effective and can be blind ? Best regards

Dear All, As general for carbon steel (SA 516 Gr 70) what is the effect of high or low manganese and silicon on the steel behaviour ? Thanks

Thank you The design standard is API5L (Pipe line) You know API5L has not the same approach as ASME codes The API5L require PWHT for high frequency electric welding process. But for the others refer to the manufacturer decision. Now it is very important to get other reference or sientific...

This standard is required by our customer to manufacture from welded pipe some fittings (Elbow, Tee,...) Diameter 1200mm Thickness 18mm.

Now the question is if the PWHT is necessary for such weld or not. The API 5L is not so clear Best regards

I've ordered already E81T1-K2M wire 1.2 and 1.6mm and we will proceed the welding with 80°C preheat and without PWHT for the pipe 1200mm diameter and 18mm thickness. What is your opinion?

Thank you but different type of electrodes. Why not E8010G without PWHT?

Return back to the mane question. For pressure equipment welding, each welder should be qualified by test according to a referenced Code/Standard. But pay attention that this qualification is not a general qualification. It shall cover the welding variables of the production welding. Adding to...

Dear All, Can some body help me to determine the filler metal type to weld API 5L X70 pipe thickness 18mm with FCAW and SMAW process. Thank you

Thank you All, I agree that some codes specifiy the requirement for PWHT, but some standards or codes do not specify clearly ex. AWS D1.1 or API 5L or AWWA C200... I look for some thing to help the engineer to decide for PWHT when not clearly specified in the codes or standards. Best Regards

Dear All, Can somebody help me to find any technical book or web site which gives the rules how can we determine if a PWHT is required for any carbon steel ? Thank you

Dear All, Does the API1104 or the API 5L requires a post weld heat treatment after welding API 5L X70 pipes ? If no, technically is it necessary to PWHT a pipe API 5L X70 having 18mm thickness? Thank you

Dear All, Can some body advice me which type of electrode can I use to weld XC48 or C45 to S235JR (EN10025) material. (ALL carbon steel) Thank you in advance

Hello Every body, What are the equivalent ASTM materials to API5LX52 ? Thank you

Dear All, When looking in the AWS D1.1 (contractual standard) I don't find any direct requirement to perform or not a PWHT of full penetration butt weld of carbon steel plates thickness 50mm up to 105mm. Can some body help me in order to decide if it is required or not to perform a PWHT for...