Materials & Welding

ss304 THANKS & BEST REGARDS, KG.PANDITHAN, BE, IWE,   ISO 9712 Level 2 in VT, ASNT-Level II in PT,MT,RT & UT, LA ISO 9001-2015, ISO 3834, EN 1090 & EN 15085,  International Welding Engineer.  CONSULTANT-WELDING & QUALITY Mobile no: +919940739349 On Wed, Sep 30, 2026 at 10:37 AM dham...@gmail.com < dhamtech@gmail.com > wrote: Hello Team, Request to provide details of the equi...

Dear Experts,  Can anyone share the inspection requirements or a qualification procedure for cold bending? Our client spec states only the requirements for induction bending and would like to know your opinion on the cold bend inspection requirements. The code of construction is B31.3, Max. 5D bends, A106 SS 316L.  Thanks in Advance. -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- You received this message because you are subscribed to the Google Groups "Materials & Welding" group. To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com . To view this discussion visit https://groups.google.com/d/msgid/materials-welding/1be61cc3-e9c9-4a5f-834d-e8485e248432n%40googlegroups.com .

Hi We manufacture cooling coils according to drawing codes and standards. In cold bending, we check dimensions visually, thickness Reduction, and ovality. In process, we check hardness and perform PWHT if required by clients or codes. We also do  LPT Test on the knuckle area after forming. X ray of Weld Joints before and after PWHT. Regards Chandrakant Prajapati +91 9967323210 On Fri, Oct 2, 2026 at 8:38 AM Stanley < rubanmech39@gmail.com > wrote: Dear Experts,  Can anyone share the inspection requirements or a qualification procedure for cold bending? Our client spec states only the requirements for induction bending and would like to know your opinion on the cold bend inspection requirements. The code of construction is B31.3, Max. 5D bends, A106 SS 316L.  Thanks in Advance. -- https://materials-welding.blogspot.com/ https://www.linkedin...

See attached. Marco On Fri, Oct 2, 2026 at 3:07 AM patni engineers < patniengineers@gmail.com > wrote: Hi We manufacture cooling coils according to drawing codes and standards. In cold bending, we check dimensions visually, thickness Reduction, and ovality. In process, we check hardness and perform PWHT if required by clients or codes. We also do  LPT Test on the knuckle area after forming. X ray of Weld Joints before and after PWHT. Regards Chandrakant Prajapati  +91 9967323210 On Fri, Oct 2, 2026 at 8:38 AM Stanley < rubanmech39@gmail.com > wrote: Dear Experts,  Can anyone share the inspection requirements or a qualification procedure for cold bending? Our client spec states only the requirements for induction bending and would like to know your op...

 EN no.         EN design.       Common name       Closest ASME/    ASTM grade Key distinction 1.4306        X2CrNi19-11              304L         SA-240 Type 304L           Higher Cr/Ni than 1.4307;  very low C 1.4307        X2CrNi18-9              304L        SA-240 Type 304L           Standard 304L composition   Sridhar. On Wed, 30 Sept 2026 at 16:15, Bhavani Prasad Emani < emanibhavani@gmail.com > wrote: Hi, ...

Dear Sir, Yes you can do it if your other specifications is not restricting the same. That will not be a code violation. Regards  Hareesh K V Mechanical Engineer  On Wed, 9 Sept, 2026, 4:43 pm sridhar cn, < sridharcn305@gmail.com > wrote: Dear Mr. Chatterjee, You have not indicated whether it is an H₂S  service or a general type.  P WHT can itself introduce or  reveal  problems  such as reheat/stress-relief cracking in susceptible weldments, dimensional distortion, cracking associated with high hardness/microstructural conditions and  defects that were not detectable before PWHT. So, if it is an NACE/H₂S  service line , the project specification may require a  final NDE after PWHT,  even though  B31.3 itself does not mandate it for P-No. 1.   Welding → RT/UT ...