Monday, February 18, 2013

Re: [MW:16804] Suitable Weld metal for P1 to P4 material

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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