sch壁厚等级对照表-

6812345681234568承插焊管件（一）SocketWeldingFitA68888881234承插焊和螺纹活接头UnionsofSocket-Welding&Threaded度度度度Thread焊ThreadThread6812838承插焊管件的接管外径、承插孔径及流通孔径尺寸表外径外径径外径径D6871234承插焊管件尺寸的极限偏差TolerancesforSocket-WeldingFittngs件件A0A、HEF度0L000SCH160和双加厚管的公称壁厚A管件级代号与管子壁厚代号的关系RelevanceofFittingsClasswithScheduleNunberorWallDesignationofpipeforCalculaticlassdesignationfoFittiTypeofFitting600030009000承插焊Socket-681234XXSXXSXXSE6812346812346687345667896688螺比试管件的尺寸极限偏差TolerancesforThreadedFADCW68666888885757746486868123·ThestandardsandcodesofthefittingsisconicalthreadedNPTangle6thread,pleaseindicatetheminthepurchasedorder.D66548676654888768888768123·ThestandardsandcodesofthefittingsisconicalthreadedNPTangle6thread,pleaseindicatetheminthepurchasedorder.75、100、150SCH80、SCH16068TL六角头双丝头与螺纹短节的极限偏差TelerancesforHexagonalTheGeneralMaterialTypeVariety%24526---AkvJ:27AkvJ:31AkvJ:27AkuJ:92AkuJ:92AkvJ:35AkvJ:35AkvJ:31AkvJ:35AkvJ:31CAusteniticStainlessSteTi:5C~Ti:5C~Ti:5C~BiphaseStainless板板板板板Cδ%ASTMA420/A420M0.31-0.640.050ASTMA815/A815M4.5-6.5---ASTMA105/A105MA105ASTMA182/A182M管ASTMA53/A53MASTMA106ASTMA312/A312MASTMA335/A335MBBCTP304TP304HTP304LTP316LTP321V:0.08V:0.08V:0.08------ 板 ·材料的化学成份和力学性指标会因为某项条件的规定而有所改变,使用时请查阅mm项目mm15～100125～200250～300350～400450～600650～750800～10501100～1200压力等级表(HG5010.10～16-58,HGJ压力等级表(HG5010.10～16-58,HGJmm334334334334441/2~1/2~径D1径2头H2管帽高度E4距O7高度K7差U1800~481222222333522222333544777777777……7777777……1111222ANSIB36.10＆B36.191.652.11-1.652.11-1.652.77- --Pipe1ThicknessNominalWallNomPipeSize(in) Nom --------4114.32.113.05 45141.32.773.40--56168.32.773.40 68219.12.773.76-15.0918.2620.6223.0122.238273.13.404.19 18.2621.4425.4028.5825.40323.93.964.57-21.4425.4028.5833.3225.40355.63.964.7823.8327.7931.7535.71-406.44.194.7826.1930.9636.5340.49-4574.194.7829.3634.9339.6745.24-5084.785.5412.709.5315.0912.7020.6226.1932.5438.1044.4550.01-5594.785.5412.709.53-12.7022.2328.5834.9341.2847.6353.98-6105.546.3514.279.5317.4812.7024.6130.9638.8946.0252.3759.54-7626.357.92 ------壁厚分级表GB12459-90GB/T13401-9226.92533.73242.43848.34560.35776.17388.989402.92.93.23.63.64.05.05.65.65.96.37.18.08.8------------1604.55.66.36.37.18.8803.64.04.55.05.05.67.18.08.08.8 ------------------------------------------------------------------------- --- ----------- - - - ----------- - - - ----------- - - - ----------- - - - ----------- - - - ----------- - - - -┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅鋼管比較!磅级(class)1503004006008009001500250035004500我们通常所用的PNCLass都是压力的一种表示方法所不同的是它们所代表承受的压力对应参照温度不同PN欧洲体系是指在120℃下所对应的压力而CLass美标是指在425.5℃下所对应的压力。所以在工程互换中不能只单纯的进行压力换算如CLass300#单纯用压力换算应是2.1MPa但如果考虑到使用温度的话它所对应的压力就升高了根据材料的温度耐压试验测定相当于5.0MPa。阀门的体系有2种一种是德国包括我国为代表的以常温下我国是100度、德国是120度的许用工作压力为基准的“公称压力”体系。一种是美国为代表的以某个温度下的许用工作压力为代表260度时候许用应力为1MPa而在常温下的许用应力要比1MPa大得多大约是2.0MPa。所以一般说美标150LB对应的公称压力等级为2.0MPa300LB对应的公称压力等级为5.0MPa等等。因此不能随便按照压力变换公式来变换公称压力和温压等级。PN是一个用数字表示的与压力有关的代号是提供参考用的一个方便的圆整数PN是近似于折合常温的耐压MPa数是国内阀门通常所使用的公称压力。对碳钢阀体的控制阀指在200℃以下应用