[MW:3609] E316 SS plate - porosity issues

 

Hi,

 

I am mahendra from KSA.

 

using 316L oerilicon electrode over 316L plate ((Flange joints - thickness around 8 mm)),

which creates porosity issue sometimes here . WPS and PQR are followed properly and there are no significant variation.

The electrode supplier suggests to use it in rebake oven.

 

We knows low hyd. electrodes  which  are ending  with 5,6 and 8 are to be used  with oven.

Is it correct way or normal proceudeure to use the SS electrode in oven ?

What is the control parameter to eliminate the porosity issue after  welding (Especially in  SS plate)

 

mahendra.t

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