Re: [MW:13955] RE: 13739] How to reduce SA517 hardness

Dear Pradip:

I think it's better to tell us exactly what is your base metal and
(chemical analysis, mechanical properties and its heat treatment) then
we will discuss the details.

That's because for instance, A517 grades B and F are totally different
and require different approach.

Regards
Ramin

On 2/20/12, Pieper QSI <info@pieper-qsi.nl> wrote:
> Dear sir,
>
> The filler material you mention is a filler metal for high strength steel
> and SA-517 in my opinion is a mild carbon steel (max 480 - 620 MPa) so in my
> opinion this is not the correct filler metal.
>
> Met vriendelijke groeten / Best Regards,
>
> J.H.H. Pieper
> IWI-C / IWT - Pieper QSI
>
> Job van der Havestraat 6
> 8384 DB, Wilhelminaoord
> Tel: 06-51691215
>
> -----Oorspronkelijk bericht-----
> Van: materials-welding@googlegroups.com
> [mailto:materials-welding@googlegroups.com] Namens pradip kumar sil
> Verzonden: zondag 19 februari 2012 9:43
> Aan: materials-welding@googlegroups.com
> CC: pgoswami
> Onderwerp: [MW:13739] How to reduce SA517 hardness
>
> Dear Sir,
> We are using one material which is equivalent to SA-517 material ( Pressure
> vessel plates, alloy steel, high strength, quenched & tempered ). with
> electrode E-11018M. Climatic condition of the environment is minus 5 degree
> Centigrade to plus six degree Centigrade.Parent material hardness is 230 BHN
> but weld material hardness is coming approx 400 BHN which is not
> acceptable. We are properly maintaining preheating i.e 250 degree
> Centigrade as well as interpass temperature is 150 degree centigrade.
> Pls guide me how can i reduce this material hardness.
> Regards
> Pradip
>
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