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  1. Abanamat

    Lower temperature of PWHT

    Hello, I have a question about PWHT: Vessel base material is SA-516 Gr.70N, vessel will be exposed to alkanolamine and wet H2S. Our vendor informed us that PWHT was performed slightly below 620°C. However, results of hardness test were below the maximum value of hardness required in H2S...

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