Low-Temperature Properties of Austenitic Ductile Irons
The low-temperature impact toughness of the existing grades of austenitic ductile iron, as covered by ASTM Specification A-439, all decrease with decrease in temperature, as illustrated by the Charpy V-notch values in Table I. At -320°F the impact values fall within the range 3,5 to 11 ft-lb, D-5 grade having the highest value.
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