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Re: [MW:30924] SS-316L Rusting

By Materials & Welding

dear sir,
The rust is seen mostly along the weldments. This can be due to improper cleaning as stated in one of the views. This can be attributed to the wire brush. Normally passivation with diluted HNO3 is done. If this is not done correctly this type of problems can occur. Thanks
Mohan Ananthanarayanan

On Thu, May 28, 2020 at 3:23 PM gulzar ali <engrgulzarali@gmail.com> wrote:

What type fluid service? 




On Thu, May 28, 2020, 10:22 AM 'Karthik' via Materials & Welding <materials-welding@googlegroups.com> wrote:
It might be due to poor cleaning/pickling process or no pickling and or improper picking/curing time

Thanks& Regards,

 

(Karthik)

Karthikeyan.S

M: +66-892512282
E-mail : karthik6684@yahoo.com



On Thursday, May 28, 2020, 12:16:41 PM GMT+7, Vinod Kataria <vinod.kataria@blissanand.com> wrote:


Dear Expert,

We have received an email from our customer with pictures showing "rust" on the stainless steel (SS-316L) chambers.  Can anyone please tell me what you see in these pictures from your perspective?

 

 

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