Sunday, March 3, 2024

[MW:34792] Furnace Tube Micro alloy 35Cr‐45Ni / 32Cr-20Ni /25Cr‐35Ni welding

Dear Experts,

We have upcoming Project with below mentioned material which we required to Qualify new Procedure, need your recommendation on filler( Similar and Dissimilar weld) to be used and Precautions to be take such as Pre heat requirements, max interpass temperature to be maintained, PWHT requirements.

 Material details :

                25Cr35Ni Tube  8mm thick 4" Pipe

                35Cr45Ni Tube 8mm thick 4" Pipe

                32Cr-20Ni Tube  8mm thick 4" Pipe

                A182 F347H Tube 6.4mm 4" Pipe

 Material to be joined:

             Dissimilar Weld

             ·         35Cr45Ni to 32Cr-20Ni

·         35Cr45Ni to 25Cr35Ni

·         25Cr35Ni to A182 F347H

Similar Weld

·         35Cr45Ni to 35Cr45Ni

·         32Cr-20Ni to 32Cr-20Ni

 

Best regards

--
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