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[MW:11170] Re: Pickling Passivation of Hastalloy

By Materials & Welding
I have already downloaded info. from suggested site but to have more
authentic reference
I need to know ASTM standard for this.

Please help me out.

Best regards,

Prasad

On May 27, 11:28 am, jignesh.r...@Linde-LE.com wrote:
> Dear Mr. Prasad,
>
> Referwww.haynesintl.com.
>
>  It suggest some recommendations for pickling and passivation for
> hastalloy.
>
> After PWHT, the oxide film is more adherent than normal 18/8 grade
> stainless steel.  Molten caustic  bath followed by acid pickling found to
> be most suitable method.
>
> With Best Regards,
>
> Jignesh R Rana
> Manager - Materials Technology, QA/QC & Standards
>
> Linde AG
> Linde Engineering Division
> Dr.-Carl-von-Linde-Str. 6 - 14
> 82049 Pullach / Germany
> phone:    +49 89 7445 - 2360
> fax:           +49 89 7445 - 4952
> e-mail:    jignesh.r...@linde-le.com
> web:        http://www.linde.com
>
> This e-mail is confidential. If you are not the intended recipient, please
> notify us immediately. You should not disclose its contents to any other
> person nor use it for any purposes.
>
> Prasad <prs...@gmail.com>
> Sent by: materials-welding@googlegroups.com
> 27.05.11 05:50
> Please respond to
> materials-welding@googlegroups.com
>
> To
> "Materials & Welding" <materials-welding@googlegroups.com>
> cc
>
> Subject
> [MW:11160] Pickling Passivation of Hastalloy
>
> Dear experts,
>
> We are fabricating a pressure vessel with Hastalloy claded plates.
> Vessel is to undergo PWHT. I would like to know which is the ASTM
> standard covers
> pickling of Hastalloy material, like A380 is for SS materials.
> Code of construction is ASME Sec. VIII Div. 1 2007.
>
> THanking you in advance.
>
> Prasad
>
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