We have been building pressurized sand pots for years and we use SA414GRG for the heads and shell. Now we have a request to supply to europe and be PED compliant. Our standard MDMT is -20° F. I have been told that we can not use SA414GRG below 32°F / 0°C. I have read in article 1 section 7.5 impact testing materials must meet 27 joules for brittle fracture. Also the minimum design temperature would need to be 32° F / 0°C if I do not use the impact test. Any help or clarification on this issue would be greatly appreciated.
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