Re: [MW:12190] furnace heat treatment for piping spool

First answer these questions:

1. What is your material?
2. What is your filler metal?
3. What is the heat treatment...?

If it  is carbon steel and they are just doing stress relieving, there should not be a problem.

Just check the base metal's certificate for its tempering temperature (if any), you furnace shall not heat the spool to temperatures above that.

Regards

Ramin  Kondori

   QC/Welding Engineer 

         IWE AT 0070

   

On Thu, Aug 11, 2011 at 11:46 AM, vijay kumar <vijaykumaar80@gmail.com> wrote:

Dear all,

prefabricated cs piping spools pwht carrying by furnace method, instead to do joint total spool they doing.

there is any technical problems on that,  example : base metal may manufactured by normalizing method or other different method with high  temperatures 

so there is a chance to loss mechanical properties 

pls clarify with any supporting doc.

thank you,

vijay

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