Impact Test is required in SS, DSS, SDSS also as per following
details:
Section VIII-Div 1- UHA-50 is applicable.
Base material is exempted from impact testing in Austinitic SS(P8)
upto -196 degree centigarde MDMTor warmer
Base material of Duplex & Super Duplex is Exempted upto -29 degree or
warmer if thickness is less than 10mm, please note for thickness more
than 10mm impact is required.
Please note for P8 weld metal exemption is applicable upto -104 degree
centigarde only, while for 10H the same upto -29 degree with thickness
limitation.
In case of thermal treatment above exemptions are not applicable the
same is revised for P8 from -196 to -29.
The other condition to get the impact examption is by calculating
Coincident Ratio of Design Stress , if less than 0.35 we can get the
impact exemption in base metal as well as in welding procedure/
production test coupen.
Regards
Jaspal Singh, CWI-AWS, CSWIP-3.1
Assistant Manager – Quality Assurance
Process Equipment Division
ISGEC, Yamuna Nagar, Haryana -135001
Phone: 911732307251
Ext: 251 Mb: +918930111441
On Aug 7, 7:54 am, skrie85 <skri...@yahoo.com> wrote:
> Hi all,
>
> I have one query about the charpy impact test. Do the stainless steel (P-No.8),
> Duplex & Super Duplex (P-No.10H) required charpy impact test or not? If yes,
> what condition which I need to consider when doing the charpy impact test and
> where can I refer?
>
> Thank you,
>
> Regards,
> Shukri
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