Re: [MW:13235] B31.3 PWHT requirement P1 materials

Yes it is required for Thickness > 0.75" (20mm)

On Tue, Dec 20, 2011 at 4:43 AM, mauricio padilla <mauricio_padilla_f@yahoo.com> wrote:

Dear,   Please I need your Help, about ASME B31,3.   I need to know if it is required PWHT.   CASE:   Pipe A106 Grb (PN 1) wall thickness  0.844"   B31.3   Chapter V   Table 331.1.1   According to table 331.1.1 really is it necessay PWHT.   Please tell me   Is it correct?.   Best regards   Mauricio

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