Re: [MW:16534] PWHT TEMP.RANGE IN CODES

You must understand the tempering temperature and normalizing temperature. The LCT refer to tempering while UCT refer to normalizing.

Please refer table 129.3.1 of ASME B31.1 as guideline.

Thanks
Ghafor
Site Quality Engineer
Alstom Power

On Dec 29, 2012 4:07 PM, "krishna" <wiqw@rediffmail.com> wrote:

Dear team,

Could one please explain the upper transformation/critical temp. and lower
transformation/critical temp of PWHT given in ASME.SEC IX.

Where the range of these temperatures is given in international codes.For example which is the
lower transformation temp. and from where the upper transformation starts and ends.

Please share some supporting documents for the temperatures ranges.

Thanks in advance,
krishna

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