Dear Mr. Prasad,
Refer www.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.rana@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.
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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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
Refer www.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.rana@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 <prsgne@gmail.com> Sent by: materials-welding@googlegroups.com 27.05.11 05:50
|
|
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
--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
--
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To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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