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Capping runs - stub to header welds

Capping runs - stub to header welds

Capping runs - stub to header welds

(OP)
See

thread794-302393: Unsusual weld header configuration

Have just been informed by some experienced power station personnel that this was reasonably common practice (using a lower alloy content - F11 - to perform capping runs to a F22 stub weld) to improve ductility and reduce the onset of fatigue cracking. Any truth to that reasoning?

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