Re: [MW:32757] impact test difference in WPS & MTC

Welding consumables do not mandatorily require test certificates.  Manufacturer's certification on the packaging is acceptable as per the Code.  Consumable once certified by manufacturer for a certain classification is understandable he has made all the necessary tests including impact testing and these consumables can be used upto the lower temperature as per the mentioned classification.

If you are using the consumable at lower temperature than classified according to the consumable specification it is necessary to have a Batch test certificate from the manufacturer.  If not run a production test coupon and perform Impact test only.

Regards,

 

Prashant P Rane

On Mon, Jan 17, 2022 at 1:32 PM 'sangram routray' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Dear Experts,

we have a qualified PQR & WPS with impact test @ -52°C , with use a specific filler wire batch.  In witch filler wire MTC; manufacture recommended the impact value @ -40°C.

Job's Impact requirement is -52°C.

shall I use the same specific batch Filler wire for the job?? (Y/N)

or required batch test qualification (all weld test )

Answer with code's justification.

 welding code ASME Sec-IX

code of construction ASME B31.3

Thanks & Regards

Sangramkeshari Routaray

MOB NO. +91-8249921885

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