[www.staffempire.com]-GB9131-88钢制管法兰温度-压力等级.pdf

中华人民共和国国家标准GB9131-88钢制管法兰】压力温度等级Pressure-temprature ratings for steel pipe flanges1适用范围本标准适用于GB91149123一88中所规定的管道用锻制钢法兰。2法兰在不同温度下的最大允许工作压力2.1 PN0.25MPa(2.5bar),PN0.6MPa(6bar),PN1.0MPa(10bar),PN1.6MPa(16bar),PN2.5MPa(25bar),PN4.0MPa(40bar)的钢制管法兰按表1的规定。2.2 PN2.0MPa(20bar),PN5.OMPa(50bar),PN10MPa(100bar),PN15MPa(150bar),PN25MPa(250bar),PN42MPa(420bar)的钢制管法兰按表2的规定。国家机械工业委员会1988-04-09批准1989-01-01实施GB9131-88续表2公歌工作湿度，压力P法兰材料20100150200250300350400.425450475500525550575600MPa（bar）最大允许工作压力，MPa(bar）7.907.126.786.365.765.144.784.384.244.1020(79.0)(71.2)(67.8)(63.6)(57.6)(51.4)(47.8)(43.8)(42.40(41.0)8.707.747.346.766.165.565.144.784.444.1025(87.0)(77.4)(73.4)(67.6)(61.6)(55.6)(51.4)(47.8)(44.4)(41.0)16Mn:15MnV10.149.929.528.748.347.547.126.766.284.442.90101.4)(99.2)(95.2)(87.4)(834)(75.4)(71.2)(67.6)(62.8)(44.4)(29.0)9.929.328.748.147.747.126.766.366.266.165.905.643.922.5212CrMo:15CrMo(99.2)(93.2)(87.4)(81.4)(77.4)(71.2)(67.6)(63.6)(62.6)(61.6)(59.0)(56.4)(39.2)(25.2)12CrlMoV9.299.328.748147.747.126.766.366.266.165.905.645.163.8223610.0(99.2)(93.2)(87.4)(81.4)(77.4)(71.2)(67.6)(63.6)(62.6)(61.6)(59.0)(56.4)(51.6)(38.2)(23.6)(100)12Cr2Mol10.3410.3010.049.729.128.488.047.327.026.766.345.644.103.102.50103.4X103.0X100.4)(97.2)(91.2)(84.8)(80.4)(73.2)(70.2)(67.6)(63.4)(56.4)(41.0)(31.0)(25.0)ICr5Mo10.3410.3010.049.729.268.488.047.327.026.765.604.183.102.361.741.20103.4X103.0X100.4)(97.2)(92.6)(84.8)(80.4)(732)(70.2)(67.6)(56.0)(41.8)(31.0)(23.6)(17.4)(12.0)OCr19Ni98.847.506.826.406.005.745.545.325.265.165.065.004.924.804523.981Cr18Ni9(88.4)(75.0)(68.2)(64.0)(60.0)(57.4)(55.4)(53.2)(52.6)(51.6)(50.6)(50.0)(49.2)(48.0)(45.2)(39.8)(1Cr18Ni9Ti)0Cr18Nil1Nb11.8510.6810.179.548641.717.176.576.366.1520(118.5)(106.8)(101.7)(5.4)(86.4)(77.1)(71.7)(65.1)(63.6)(61.5名13.051l.6111.0110.149.248.347.717.176.666.15(130.5)(116.1)(110.1)(101.4)(92.4)(83.4)(71.1)(71.7)(66.6)(61.5)16Mn:15MnV15.21148814.28131112.5111.3110.6810.149.426.60435(152.1)(148.8)(1428)(131.1)(125.1)(113.1)(106.8)(101.4)(94.2)（66.6)(43.5)4.88139813.11122111.6110.6810.149.549.399.24&858465.83.7512CrMo:15CrMo1488)(139.8)(131.1)(122.1)(116.1)(106.8)(101.4)(95.44)(93.9)(924)(88.5)(84.6)(58.8)(37.5)12CrlMoV148813.9813.11122111.6110.6810.149.54939.9.248858467.745.733.5415.0148.8)(139.8)(131.1)(122.1)(1161)(106.8)(101.)(95.48)(93.9(924)(88.5)(84.6)(77.4)(57.3)(35.4)(15012Cr2Mol15.5115.4515.0614.5813.6812.7212.0610.9810.5310.149518466154.65375155.1)(154.5)(150.6)(145.8)(136.8)(127.2)(120.6)(10.98)(1053)(101.4)(95.1）(84.6)(61.5)(46.5)(37.5)1Cr5Mo15.5115.45150614.6413.89127212.0610.9810.5310.148406.274.653.542611.80155.1)(154.5)(150.6)(146.40(138.9)(127.2)(120.6)(10.98)(105.3)(101.4)(84.0)(62.7)(46.5)(35.4)(26.1)(18.0)0Cr19Ni913.2611.2510.239.603.008618.318007.907.707.607.507.407.205.805.971Cr18Ni9(1326)(1125)(102.3)(96.0)(90.0)(86.1)(83.1)(80.0)(79.0)(77.0）)(76.0)(75.0)(74.0)(72.0）(68.0)(59.7)(1Cr18Ni9Ti)OCr18Nil1Nb