Re: [MW:16455] Preheating regards Tensile strength

Muthu is correct. Just for information: Interpretation: 8-23 Subject: ASME/ANSI B31.3-I987 Edition With Addenda Through B31.3b-I 988,                  Para. 330.1; Preheat Temperature - Procedure Qualification Date Issued: May 7, 1990 File: B31-89-047 Question: In meeting the requirements of ASME/ANSI 831.3, para. 330.1.1 for preheat                    temperatures, is it necessary to comply with the values in Table 330.1 .I, or can                    the requirements of the BPV Code, Section IX be used? Reply: ASME/ANSI B31.3, Table 330.1.1 applies, except for those values which are listed               as recommendations. ವಂದನೆಗಳೊಂದಿಗೆ / Best regards, Nandesh Kumar A Abu Dhabi, UAE P.S. : Please don't print this e-mail unless you really need to. --- On Sun, 6/1/13, MUTHUKUMARAN M.P.N <m.p.n.muthu@gmail.com> wrote: From: MUTHUKUMARAN M.P.N <m.p.n.muthu@gmail.com> Subject: Re: [MW:16453] Preheating regards Tensile strength To: materials-welding@googlegroups.com Date: Sunday, 6 January, 2013, 2:30 PM Dear Mr.Naresh   330.1.1 Requirements and Recommendations. Required and recommended minimum preheat temperatures for materials of various P-Numbers are given in Table 330.1.1. If the ambient temperature is below 0°C (32°F), the recommendations in Table 330.1.1 become requirements.   Regards Muthu On Sun, Jan 6, 2013 at 12:56 PM, Naresh Kumar <snareshkumar30@yahoo.com> wrote:   Dear experts, Asper ASME31.3 table 330.1.1 preheating should be done for all thickness(79 deg C), if tensile strength of base metal exceeds 490MPA.In my project we have 2"OD  and 5.54 thickness with 510MPA tensile strength(Base metal).  In this case whether preheating is require or not. Kindly give some suggestions. Thanks & Regards, Naresh -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com For more options, visit this group's bolg at http://materials-welding.blogspot.com/ http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm   The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.     -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com For more options, visit this group's bolg at http://materials-welding.blogspot.com/ http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm   The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.