Hardness after PWHT

[patelr...@gmail.com]

Dear Experts please explain what hardness of Weld, HAZ, Parents metal is acceptable for F11 & F22 after Post weld Heat treatment.

[Karthik]

Hi, 

Please refer Section II Part -A SA 182 . It’s specified


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On Tuesday, January 14, 2020, 6:15 PM, patelr...@gmail.com wrote:

Dear Experts please explain what hardness of Weld, HAZ, Parents metal is acceptable for F11 & F22 after Post weld Heat treatment.

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[Prakash Hegde]

Hi

Generally BHN235 MAX is acceptable limit after PWHT

Regards

Hegde

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On Tue, 14 Jan 2020 at 17:28, patelr...@gmail.com

<patelr...@gmail.com> wrote:

Dear Experts please explain what hardness of Weld, HAZ, Parents metal is acceptable for F11 & F22 after Post weld Heat treatment.

[Roshan Patel]

After PWHT for F11 & F22 hardness reduced to 110 HB, it is acceptable ?

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[Karthik]

Hi,

As per the Code its not acceptable. If hardness is lesser then the Tensile strength might be reduced. Please check on some other locations. small grinding on the surface before take hardness readings.

Thanks& Regards,

 

(Karthik)

Karthikeyan.S

M: +66-892512282

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[José Juan Jiménez Alejandro]

You can mention the Code and paragraph where this information is.
Please.

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[Karthik]

Hi,

Please find below the extraction from ASME Section II. your hardness value is lesser than the minimum hardness value required by the code.

Thanks& Regards,

 

(Karthik)

Karthikeyan.S

M: +66-892512282

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[Dharmesh Mistry]

Hi,

Para 12.6 (hardness testing - weld procedure qualification and
production) of API RP 582 to be referred.

Regards,
Dharmesh

On Tue, Jan 14, 2020 at 5:28 PM <patelr...@gmail.com> wrote:
>
> Dear Experts please explain what hardness of Weld, HAZ, Parents metal is acceptable for F11 & F22 after Post weld Heat treatment.
>

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Thanks, & With Best Regards,



Dharmesh MISTRY

+91 9820735814

[pradip kumar Sil]

Designer will decide hardness value for the HAZ and WELDMENT

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