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  1. blue1074

    Is it possible to use a Charpy V-nottch Impact value to de-rate yield stress of material @low temp?

    We have a Material Testing Report for a few parts that were manufactured that give 3 impact values at 20 degrees Celsius and 1 impact value at -20 degrees Fahrenheit. All values are longitudinal and transverse values are not given. The material is a CroMolloy Steel (P110 tubular 4130 steel)...

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