Re: [MW:30008] Requirement of double Normalizing of SA-516 Gr.70

Jayesh

I do agree with Prakash UTS will be affected on negative side hence your base material should have greater UTS during procurement.

Further to that

As you mentioned

" so during cold forming vendor need one intermediate normalizing. and as per client requirement one more normalizing performed after complete dished end forming. So, total 2 time normalizing have to perform."

It is interesting to understand

1.  what do you mean by "intermediate normalizing" ?

2.  When the dish is cold formed why is the vendor requiring normalizing.  Is your designer asking for same.  Can't both vendor and client requirements be satisfied in one normalizing

Answer to your other questions is

(1) During plate order i have to take 2 normalizing cycle simulation ? Yes Or No? With Reason

You will have to test the sample to meet UCS 85 requirement after 2 cycles of normalizing

(2) May I take benefit of Clause UCS-85 (i) of ASME sec-8 Div.1?

You will have to test the sample to meet UCS 85 requirement after 2 cycles of normalizing because you may not be able to maintain the same cycle on the dish as that of the plate manufacturer

(3) Is same clause applicable for welding?

PQR shall be qualified with 2 normalizing cycles as heat treatment condition.  Since it is normalizing thickness restrictions will not apply.

(4) And If i will perform double normalizing then I have to simply double the normalizing time or 2 separate normalizing i have to perform?

Either way is acceptable there is no restriction as such.

(5) What will be effect on weld and base material after 2 time Normalizing?

Material and weld properties will change (reduce)

Regards,

 

Prashant P Rane

On Fri, Aug 30, 2019 at 10:59 AM 'Prakash Hegde' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Hi!

With multiple normalising.UTS gets deteoriates

Accordingly  ddelivery condition.of.plate.you req UTS on higher side than min requirement

Ii) Generaly for highet.thick weld.seam multiple Normalising.ll.reduce UTS as such Normalising criteria.is not.addressed in.Sec IX.or.Div 1 of ASME

THATS why most of the designer recomend Crown.n Petal.for higher thk.Dends

Regards

Hegde

Sent from Yahoo Mail on Android

On Fri, 30 Aug 2019 at 11:51, Jayesh Parekh

<jayeshparekh34@gmail.com> wrote:

In our recent project i encounter one problem.

Material Grade : SA-516 Gr.70 Supply condition : Normalized

Dished end : Ellipsodial

Thickness : 45 mm

Forming process : Cold forming

Dished end have one cordal seam

Impact required at : -46 deg. C

so during cold forming vendor need one intermediate normalizing. and as per client requirement one more normalizing performed after complete dished end forming. So, total 2 time normalizing have to perform.

So, my question is ; 

(1) During plate order i have to take 2 normalizing cycle simulation ? Yes Or No? With Reason

(2) May I take benefit of Clause UCS-85 (i) of ASME sec-8 Div.1?

(3) Is same clause applicable for welding?

(4) And If i will perform double normalizing then I have to simply double the normalizing time or 2 separate normalizing i have to perform?

(5) What will be effect on weld and base material after 2 time Normalizing?

(6) if any one encountered such issues . please help to solve 

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/f9744a58-4c34-4c96-93f8-ff304e519db5%40googlegroups.com.

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/177254843.162832.1567147604899%40mail.yahoo.com.

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAAkMc%3D6MZLP-bZTt6iBUUfqPU0X5OBH-QEAJeksfOm%3Dr%3D1ZM_g%40mail.gmail.com.