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RE: [MW:0] F-No&A-No of ERNiCrMo-3

By Materials & Welding

F number will be 43 and A number is not applicable for non ferrous materials

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of sunil mani
Sent: Monday, September 20, 2010 1:45 PM
To: materials-welding@googlegroups.com
Subject: Re: [MW:7103] F-No&A-No of ERNiCrMo-3

 

Dear Raghuram sir,

 

I have reviewed my WPS and the following values observed.

 

Specification (SFA)  :  A 5.14(GTAW)

AWS classification   :  ER-NiCrMo-3(GTAW)

Trade Name            :  Thermanit625(GTAW)

 

 Filler metal product form : Solid (GTAW) 

 

Chemical composition in % for GTAW: C-0.008%, Si-0.06%, Mn-0.02%,Cr-22.32%,

Mo-8.93%, Nb-3.53%, Ni-64.10%,Fe-0.439%,P-0.001%,S-0.001%,Cu-0.039%,Ti-0.181% &Al-0.127%

 

 

Dear Karthik Sir,

 

Thank you for the correction,I had mistakenly typed QW.422 instead of QW.442

 

I have reviewed ASME QW.422 'A' No. section and couldn't find any matching chemistry with above mentioned chemical composition.

 

In this case,In the A-No column of WPS, what I have to write? N/A or Nil?

 

 

 

Regards,

 

 

Limesh

 On Mon, Sep 20, 2010 at 11:26 AM, Karthik <karthik6684@yahoo.com> wrote:

Hi,

P.Number and F number are different and the numbers cannot be same and substituted.

For ERNiCrMo-3 F-Number is 43. For A number You can check with the QW-442 along with your Filler metal certificate to compare the chemical composition.Since it is a nickel based alloy,you check with the composition of A number 10 requirments.

 

Pls.find below the extraction of ASME appropriate sections. 

 



--- On Sat, 9/18/10, limesh M <limesh78@gmail.com> wrote:


From: limesh M <limesh78@gmail.com>
Subject: [MW:7073] F-No&A-No of ERNiCrMo-3
To: materials-welding@googlegroups.com
Date: Saturday, September 18, 2010, 8:08 PM

 

Dear All,

 

I want to prepare a WPS for ,

 

material ASTM B 423 (P No-45).

 

Process - GTAW

Construction Code - ASME B31.3

Welding Code - ASME BPV SEC IX

 

What is the F - No. of ERNiCrMo-3?  43 or 45?One of the  WPS in my hand says 45 !!!

I have reviewed ASME BPV SEC IX QW 432,F-No. section and found that 43.Now I need clarification from experts,which one is correct 43 or 45?

 

What is the A - No. of ERNiCrMo-3? I have reviewed QW 422 A-Numbers section,but couldn't find.

 

Is there any condition that P- no. and F- no. shall be same?

 

Seniors, I need your help on this issue.

 

 

Regards,

 

Limesh

 


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