1.45771.45801.45821.45831.4586耐热钢:1.47001.47121.47131.47201.47241.47421.47491.47621.48211.48281.48331.48411.48451.48611.48641.48761.48781.48851.5310阀门用钢:1.27311.38171.47041.47181.47311.47321.47481.47851.48661.48701.48711.48731.48751.48811.48822.49551.50281.5122高温强度钢和商温合金:2.46322.46342.48161.49101.49111.49131.49141.4919