Saturday, September 11, 2010

[MW:6951] Re: Duplex and Super Duplex Stainless Steel

Dear Limesh,
SFA 5.4 E2594 electrode for Smaw and SFA 5.9 ER 2594 filler wire for
GTAW is used for welding UNS 32750.
Impact values are not specified by the code. It depends on the
consultants requirement. Upto minus 30degC you could use rutile base
electrode -16 or -17. incase you want to go lower down to minus 50degC
one should use basic -15 electrodes. For GTAW there is no issue. It
will pass minus 50degC. impact to be taken on the weld , notch
perpendicular to direction of welding.
incase u require further information mail it vanchi@vsnl.com

On Sep 9, 1:03 pm, limesh M <limes...@gmail.com> wrote:
> Dear All,
>
> Thank you for the valuable inputs.
>
> Construction codes: ASME B31.3 and welding code ASME SEC IX
>
> I want to weld ASTM A 790(UNS 32750) to ASTM A 790(UNS32750), ASTM A
> 928(UNS32750) to ASTM 928 (ASTM32750).Then ASTM ASTM A 790(UNS 32750) to
> ASTM A 928(UNS32750).What electrode and filler wire I have to select?
> Normally at what direction impact test doing on weld metal, ie, transverse
> or longitudinal or both direction? From where I can get the minimum charpy
> value required on impact test? I have reviewed ASTM standards, found minimum
> tensile and yield strength values, but couldn't find any minimum required
> impact value.
>
> Regards,
>
> Limesh
>
>
>
> On Sun, Sep 5, 2010 at 8:29 PM, limesh M <limes...@gmail.com> wrote:
> > Dear All,
>
> > What is the difference between Duplex and super duplex stainless
> > steel?
>
> > What is the P. No for duplex and super duplex stainless steel?
>
> > One of our duplex stainless steel PQR failed in impact test.What would
> > be the reason?
>
> > Thanks and Regards,
>
> > Limesh
>
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>
> - Show quoted text -

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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

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[MW:34820] RE: 34813] Clarification in Rate of heating and cooling.

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