[MW:3116] FW: 3115] material resistance temperature for Zinc plated bolting.

-----Original Message-----
From: Herur Satyanarayana Shyam (External) [mailto:SatyanarayanaShyam.Herur.Guest@saipem.eni.it]
Sent: Friday, September 04, 2009 1:54 PM
To: Bathula Raghuram (Mumbai - PIPING)
Subject: FW: 3115] material resistance temperature for Zinc plated bolting.

Dear Raghu,

Could you pl post my reply to the below query. Im not able to post it. Thanks.

Regards
Shaym

Pl see appendix X2 of ASTM A193 which highlights the coating and application limits with regard to temperature and possibilities of liquid and solid metal embrittlement.

Regards
Shyam

-----Original Message-----
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Kadam Vijay (Mumbai - Piping)
Sent: venerdì 4 settembre 2009 10.09
To: materials-welding@googlegroups.com
Subject: [MW:3115] material resistance temperature for Zinc plated bolting.

Dear All,

In our project we have requirement of Zinc-Plating / bichromate-treated on bolting in carbon steel & P11 piping class.
Now Max. Design Temp in P11 piping classes is 405 DegC & 200 DegC in carbon steel classes.

I want to know the max temperature upto which zinc plated bolting can be used & if zinc plating is not suitable for this temp other alternative plating type.

Thank you for your kindly help.

Kind Regards,
Vijay Kadam

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