Re: [MW:22719] Impact Testing for Flanges

How is the thickness of the flange determined? Is there any basis given by client or the code basis remains valid? You may first define the thickness and then proceed.

Best Regards,

Abhay Pethe

On 13 January 2015 at 12:25, Prakash Gotimukul <gprakash31@gmail.com> wrote:

Yes, if client spec requires that.

Rgds

G.Prakash

Independent Consultant, ASME AIS/ISO

Technical Director, Hitek Engg Services, Dubai
 gprakash31@gmail.com.

Tel: +9714 2778511 Mob:+97152 979 5678

On Mon, Jan 12, 2015 at 3:12 PM, Raghavendra Kiran <email2ragkiran@gmail.com> wrote:

Dear Experts,

We have received some sour service flanges (NACE MR-0175), These flanges are impact tested at 20 degree Celsius by the manufacturer.

 

Our specification calls as below. 

" All Carbon steel materials of thickness greater than 12.7 mm must be impact tested at minus (-29 degree Celsius) in accordance with ASME B31.3 (para 323.3)"

The design temperature of the line is 50 degree Celsius.

Do i need to get the flanges tested at -29 degree Celsius to fulfill the specification.

Experts please advise.

Thanks,

Kiran

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