Re: [MW:18800] WPS/PQR with impact testing requirement

1. No

2. How many passes are you expecting in 6.4 mm?

Octane

On Fri, Sep 27, 2013 at 9:20 PM, Ahmed Husain <ahmraha@yahoo.com> wrote:

Dear All,

 

I have following two question related to qualification of WPS and PQR  with impact testing.

1. As per ASME IX para 403.6: where T is less than 1⁄4 in.(6 mm), the minimum thickness qualified is 1⁄2T.

my question is, if i have a material MTC stating thickness 6.4 mm, can i refer as 1/4" in PQR/WPS to get the benefit of 1/2 T qualification range.

2. As per project specification, if heat input range varies considerably in different passes, then additional impact test is required from different passes. If a test piece thickness is 6.4 mm, is it practical to take impact test specimen from different passes.

 

Your valuable reply will be highly appreciated.

 

With best regards,

Ahmed H.

ABSG Consulting, KSA

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