P-No. of UNS 06626

[ilham fauzi]

Dear Experts,

What is P-No. of UNS 06626, my client say its P No.45 but that materials simillar with UNS 06625 which is its P-No.43. Please for the advice

Thanks

[Mostafa DAIF]

Dear all,

The P number is P42 according to ASME Boiler & Pressure Vessel Code Section IX;

Best Regards,

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[cyndiso yapi]

Its P-No 43 check ASME IX Table QW422 it's listed there 

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[Chiranjeevi A]

Dear Fauzi,

Please refer to the Limiting chemical composition in MTC & concerning ASME Code Case 2276 

It should be P-No. 43

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[Chiranjeevi A]

Dear all,

Please refer to the table below for the required chemical composition of UNS 06626 under case 2276, as per the ASME BPV code cases. The P-No. for material UNS 06626 is P-43.

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[ilham fauzi]

Dear All Experts,

Thanks all for the advice and information. I checked ASME code case 2276-1, which states that UNS 06626 can be classified as category P-No.43.

Thanks a bunch.

Best Regards,
M Ilham Fauzi Pane
Welding Engineer

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[Vinay]

PL confirm , it is UNS N06626 . Its Ni-Cr moly steel..   P-45 is correct.

P-43 is for Inconel 625 i.e UNS 06625 . 

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[saleem manhappulath]

Dear Team

   KINDLY SUGGEST PREHEAT TEMP. MIN. AND MAX. FOR INC625

 

Thanks & Best Regards
Saleem manhappulath

Mob:+966533595849
WhatsApp:+919526445936

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[sridhar cn]

Mr. Saleem, 

Incl 625,minimum preheat temp. should be 50 deg. C and should not cross 200 deg. C.  Interpass temp. should not 

exceed 250 deg. C to avoid effects on material integrity  and mechanical properties. 

Generally, Preheat is not required  for incl 625. This range will help to reduce the thermal shocks in thicker sections, 

control the cooling rates, provide good weldability, and to prevent cracking during cooling. Heat-input to be controlled 

to avoid grain growth and reduced toughness.

C Sridhar.

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[sridhar cn]

P. no for UNS 06626 (inconel 625 LCF) is P45 and UNS 06625 (inconel 625) is P43.

Though both are Ni-Cr-Mo based, 06626 has more controlled microstructure for increased fatigue resistance 

at cyclic temperature conditions and is used for bellows and aerospace joints used at elevated temperatures. 

UNS n06625 is used for its high strength and corrosion resistance applications. 

Sridhar.

On Wed, 23 Oct 2024 at 15:29, saleem manhappulath <salee...@gmail.com> wrote:

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