Dear Experts, As per Axens IN-42.0 Rev. 2.1 Cl. No. 4.1.3, The mechanical tests shall be carried out after heat treatments simulating those anticipated along the fabrication that is PFHT, intermediate H.T., if any, and final PWHT plus additional heat treatments to anticipate potential repair. In our job there is no PFHT and intermediate H.T. Only final PWHT. As per PMC, we shall have to cosider 1 job cycle + 2 additional S.R. cycle for simulation. My question is, shall we have to take two seperate coupons for mechanical testing or we can simulate 3 S.R. cycle on single coupon for mechanical testing? As per PMC, one job cycle to be simulated on coupon and Mechanical testing to be carried out and 2 S.R. cycles to be simulated on another coupon and Mechanical testing to be done. I am approaching to simulate 3 S.R. cycles on single coupon for mechanical testing. Further, as per Cl. No. 5.3 (Heading Welding Consumables Chemical Analysis) of Axens IN-42.0 Rev. 2.1, The deposited weld metal shall basically match with the nominal chemical composition of the base material as specified in ASME Sec. IIC for the selected electrodes. Basis on this, PMC is approaching for chemical analysis of test coupon. Is there any need to carry out chemical analysis of test coupon or we may consider batch test certificates of welding consumables for chemical analysis? Please reply me on the above at the earliest. It shall be very very thankful to me. Thanks & regards, C. R. GANDHI (Manager- Q. C.) |
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