主要零件材料型号零件名称阀体、阀盖阀杆阀瓣阀座Y45H（Y）-64Y45H（Y）-100材料WCB38CrMoAIA2Cr131Cr18Ni9TiY45H（Y）-64IY45H（Y）-100IZG20CrMo1Cr18Ni9Ti主要外形尺寸公称压力工程通径尺寸6.410.0HH1LL1L2505102005651501508055522065019019010058224580020020015065431880022022520072535580025025025075039080027227530091847510003553954001080660100040055050016358001000450680)