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  1. johnick

    Impact testing

    ASME UG 20(f) (3)impact testing is not mandatory between -29ºC & 345ºC. Is there an exemption to mandatory test above 345ºC? We have a vessel of design pressure of 2.77MPa & design temp of 350ºC. Material grade for shell & nozzles is ASTM A106B.

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