Re: [MW:26900] preheating required for T12 material

Hi,

T12 is under P Number 4. For this lesser thickness(6mm) No need to do Preheat. Please find below the extraction from ASME Section I. Please refer A-100 , Section I.

A-100.4.3 P-No. 4, Group No. 1, 2. 250°F (120°C)

for material that has either a specified minimum tensile

strength in excess of 60,000 psi (410 MPa) or a thickness

at the joint in excess of 1/2 in. (13 mm); 50°F (10°C) for all

other materials in this grouping.

Thanks& Regards,

 

(Karthik)

Mobile: +66 892512282 
E-mail : karthik6684@yahoo.com

On Tuesday, October 10, 2017, 9:31:13 AM GMT+7, Rameez khan RK <rk.rameezkhan21@gmail.com> wrote:

Dear Experts,

                      can any one tell me pre-heating required for T12 material blow 6mm . This material in boiler water wall . Please tell me with standard and where i found this in ASME

THANKING YOU 

RAMEEZ  

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