Re: [MW:16807] Suitable Weld metal for P1 to P4 material

u can choose filler metal to match either one of base metal, but
generally on lower side to carbon migration/chromium depletion, ref
ASME B31.1/127.2.1 for further details.
Pandithan
Welding Consultant

On 2/18/13, c sridhar <sridhar305@yahoo.com> wrote:
> Mr. Dharmadattu,
>
> If it is CS with AS  the esigner feels substitution with a lower grade
> material is acceptable due application point of
> view. Then why not an electrode equivalent to that material. If you are
> particular, you can use  electrode suitable
> to P-4 also.But it is not required.
>
>
> If it is CS with AS, a lower grade consumable (equal to CS - min. E 7018  or
>  ER 70S-2) is recommended.
> Preheating could be done for P11 to an extent of 100 - 150 C if required.
>
> If it is CS with SS,  (equal to SS - E 309 or ER 309L) is recommended to
> take care of corrosion aspects
> due to use of  CS..
>
> If it is SS with AS, (equal to SS - E 309 or ER 309L) is recommended for an
>  application Temp. of <500 deg C.
> If it is SS with AS, (equal to SS - E Cr Ni Fe 3 or ER Cr Ni Fe3)
> is recommended for an  application Temp.
> of >500 deg C. If SS is of 316 type, add Mo to it.
>
>
> Trust above info. could be  of  help to you.
>
>
> Sridhar.
>
>
>
>
>
>
> ________________________________
> From: Dharma dattu <dharmadattu@gmail.com>
> To: materials-welding@googlegroups.com
> Sent: Friday, 15 February 2013 3:52 PM
> Subject: [MW:16778] Suitable Weld metal for P1 to P4 material
>
>
> Dear Experts,
> What is the method for  selecting electrode / filler metal for welding of
> two dissimilar metals. at present i need to establish a WPS for IS 2062 to
> SA 387 Gr.11 Class 2. Which are P1 & P4 materials respectively.
>
> Regards,
>
> Dharmadattu.B
> Hyderabad
>
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