(2010年)最新公称压力（MPa)管道壁厚对照表PNMPa20≤1.612CrMo2.515CrMo412Cr1MoV6.41016204.0T10≤1.6Cr5Mo2.546.41016204.0T16Mn≤1.615MnV2.54材料DN102.52.52.533443.52.52.52.533443.52.52.52.51533333.54.54.5433333.54.54.542.52.52.52033333.5554333345542.52.52.5253333.545.53333.545.5333323233.54.566533344.5675333403.53.53.53.54.56753.53.53.545785333503.53.53.545785.53.53.53.54.55.55.5333654444.544579113.53.53.580444579114.54.54.55.5810123.53.53.5100444.56811134457912153.53.54125445791315455.581015183.53.54.51504.54.55.581015184.54.56912182244520055791319225.55.581115222.54.56道壁厚对照表2506681115242877913182834557300779121826327710142232385.55.5835077101420303688111624300881116223445088121750013196009101522121820142081015229121826668679671068117912
