[MW:7386] MW:7378- Unable to find Oven Baking Temp in ASME SEC 2 C for E309 L - 15

Dear All,

 

Stainless steel electrodes do not need high temperature re-drying  as LAS and C.S electrodes. AWS SFA 5.4 does not address this issue , as it does for C.S and LAS in SFA 5.1(Table-A3) and 5.5(Table-A2).

 

Re-drying  cycle depends a lot on the type of  packing  and accordingly manufacturer’s recommendations. High tech hermetically sealed electrodes (See attached ESAB Catalogue-VAC Pac) could be used straight from the pack or at the most with a re-drying cycle of 150-200⁰C for one hour. While the ones coming in standard cardboard packing would call for some re-drying based on the storage condition and surrounding humidity levels.

 

It would be always  beneficial to check with the electrode manufacturers on re-drying recommendations unless it’s written in the packing.

 

Thanks.

 

Pradip Goswami,P.Eng.

Welding & Metallurgical Engineer/Specialist

Email-pgoswami@sympatico.ca,

pgoswami@quickclic.net

 

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Engineering Solution
Sent: Tuesday, October 05, 2010 9:38 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:7378] Unable to find Oven Baking Temp in ASME SEC 2 C for E309 L - 15

 

Dear all

no need backing for SS electrode or any 30 series but you should have to make sure that electrode should be moisture less.

 

regards - babar

 

On Tue, Oct 5, 2010 at 5:59 AM, arvinda shan <arvindashan@gmail.com> wrote:

Dear Hegde,

 

You can see all electrodes pockets they marked baking temperature and duration. Sec II c also referred manufacturer recommendations.

 

arvinda.

On Mon, Oct 4, 2010 at 7:57 PM, <hegde.pb@isgec.com> wrote:

Generally SS. Electrodes are recommended to bake at 250 c for 1.5 to 2 hrs and hold at 100. C till being issued to welder . Higher baking temp. Say 300 c causes problem of peeling of flux coating
Regards
Hegde

Sent from my BlackBerry® smartphone from !DEA

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From: arvinda shan <arvindashan@gmail.com>

Sender: materials-welding@googlegroups.com

Date: Mon, 4 Oct 2010 17:47:36 +0400

To: <materials-welding@googlegroups.com>

ReplyTo: materials-welding@googlegroups.com

Subject: Re: [MW:7359] Unable to find Oven Baking Temp in ASME SEC 2 C for E 309 L - 15

 

manufacturer recommendation baking temperature to be followed.

 

arvinda.

On Mon, Oct 4, 2010 at 4:57 PM, Engineer Mech <mengineer010@gmail.com> wrote:

Dear All

I want to know baking temp of E 309 L - 15,
I checked out in SFA 5.4 in ASME sec 2 C,
Pl let me.. wat it is?

Thanks

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