FERITIC DUCTILE IRON PER ASTM A-395 EXCEPT NO POST CAST HEAT TREATMENT AND THE AS CAST PROPERTIES SHALL BE 65 KSI TENSILE,45 KSI YIELD,12%ELONGATION,AND BHN 170-241 * W+ J5 C# W g7 m! Z3 J* }# K 1 {& @/ X6 r& Y! v. z[ 本帖最后由 userkypdy 于 2007-8-5 17:51 编辑 ]