Stainless steels with sigma can normally withstand normal operating stresses but upon cooling to temperatures below _______ may show a complete lack of fracture toughness as measured by a Charpy impact test.
Stainless steels with sigma can normally withstand normal operating stresses but upon cooling to temperatures below _______ may show a complete lack of fracture toughness as measured by a Charpy impact test.
Stainless steels with sigma can normally withstand normal operating stresses, but upon cooling to temperatures below 500º F, may show a complete lack of fracture toughness as measured by a Charpy impact test.
Stainless steels with sigma can normally withstand operating stresses at operating temperatures but uponcooling below about 500 °F (260 °C) may show a complete lack of fracture toughness as measured in a Charpy impact test.