Pickling and passivation

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Chiranjeevi A

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Apr 15, 2020, 1:01:06 AM4/15/20
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Dear all,

  Can any one suggest the specification or standard procedure s to be followed for pickling and passivation of inconel pipes and flange surfaces

harenath jha

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Apr 15, 2020, 2:28:54 AM4/15/20
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What is the conditions of material.
Is it heat treated normalised or something else.

On Wed, Apr 15, 2020, 10:31 Chiranjeevi A <chiranjee...@gmail.com> wrote:
Dear all,

  Can any one suggest the specification or standard procedure s to be followed for pickling and passivation of inconel pipes and flange surfaces

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Perumal Govindan

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Apr 15, 2020, 2:28:55 AM4/15/20
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Please check for your project Piping/Welding Specification/standards/fabrication procedure of inconel Piping.
If not found, check with manufacturer recommendation and get it approved by client.

On Apr 15, 2020 10:30 AM, "Chiranjeevi A" <chiranjee...@gmail.com> wrote:
Dear all,

  Can any one suggest the specification or standard procedure s to be followed for pickling and passivation of inconel pipes and flange surfaces

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Chiranjeevi A

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Apr 15, 2020, 3:26:25 AM4/15/20
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Dear Harenath,

       Due to improper storage, the thermowell of Inconel 601 got corroded. For these items can we do pickling and passivation? 

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SAMEER LANDGE

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Apr 15, 2020, 6:57:34 AM4/15/20
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ASTM A380 is a good ref.  It give a list of possible solutions to use and some basic guides. 

Regards 
Sameer 

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harenath jha

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Apr 15, 2020, 6:57:34 AM4/15/20
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Again... Please what is the as shipped condition... If it is not heat treated then u can not do passivation. If it is heat treated then passivation can be done Please refer astm a 380 for more details...  Still you are in doubt please let me know..

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james gerald

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Apr 15, 2020, 7:23:19 AM4/15/20
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I suppose there are 2 types of Nickel Alloys, Solid solution strengthened and Precipitation Hardened alloys.

Inconel 601 falls under Solid solution strengthened and supplied in  Solution Annealed Heat Treated condition.

ASTM A 380 is pickling and passivation standard for stainless steel.

it is better to contact the Manufacturer regarding Pickling and passivation to remove corrosion deposits.

Thanks & Regards

J.Gerald Jayakumar




Perumal Govindan

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Apr 15, 2020, 7:30:59 AM4/15/20
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Please refer packing, transportation and preservation procedure of the manufacturer.

That might contains the preservation details otherwise better to get advice from the manufacturer.

On Apr 15, 2020 10:30 AM, "Chiranjeevi A" <chiranjee...@gmail.com> wrote:
Dear all,

  Can any one suggest the specification or standard procedure s to be followed for pickling and passivation of inconel pipes and flange surfaces

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
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james gerald

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Apr 15, 2020, 7:59:50 AM4/15/20
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Please check attached Article for Pickling of Nickel alloys

Thanks & Regards

J.Gerald Jayakumar




fabricating Nickel Alloys.pdf
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