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Re: [MW:36171] Cold Bending Qualification

By Materials & Welding
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 opinion on the cold bend inspection requirements. The code of construction is B31.3, Max. 5D bends, A106 SS 316L. 

Thanks in Advance.

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Regards,

Chandrakant
B.E Mech.
ASNT Level II RT/UT/PT/MPT/CSWIP

GST -27AMOPP5962A1ZS
Patni Engineers. Mumbai. India
PED/2014/68/EU
welding shop AD2000/DIN EN ISO 3834
IBR Approved 

Factory Addreess- Pl Call 

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