Dear experts, What is the main factor determines to select electrodes/Filler wires for given material like chemaical compositions or tensile strenth of the materials or its service? and preheating and PWHT requirements. I had referred ASME B 31.3 for Preheating and post weld heat treatments electrodes selection we should refer ASME SEC II Part C. We conduct PWHT before RT and after RT examinations why? Where does this mentioned any codes or standards please specify. Regards Ilangkumaran |
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