管道材料表中的英文縮寫ANSIAMERICAN NATIONALSTANDARDINSTITUTE美國國家標準委員會APIAMERICANPETROLEUMINSTITUTE美國石油學會ASMEAMERICANSOCIETYOFMECHANICALENGINEERS美國機械工程師協(xié)會ASTMAMERICANSOCIETYOFTESTINGANDMATERIAL美國材料試驗協(xié)會BBbolted bonnet螺栓連接的閥蓋BCbolted cover螺栓連接的閥帽BGbolted gland螺栓連接的填料壓蓋BEbeveled end坡口端面BLEbevel large end大端坡口BWbutt welding對焊C.A.corrosion allowance腐蝕裕量CLclass壓力等級CALCcalculation計算(壁厚)COMGcorrugated metal gasket金屬波齒墊片CONconcentric同心CScarbon steel碳鋼DNnominal diameter 公稱直徑DSAWdouble submerged arc weld雙面埋弧焊ECCeccentric偏心EFWelectric fusion welding電熔焊FIRE-Sfire safe防火安全（密封）結(jié)構(gòu)FFflat face全平面FLGflange法蘭GALVgalvanized鍍鋅的GRAFgraphite石墨GRgrade等級HBbrinnel hardness number布氏硬度HEXhexagonal六角HTheating treatment熱處理IRinner ring內(nèi)定位環(huán)Llarge大端（母管）LRlong radius長半徑MMmilimeter毫米MFFmale and famale face凹凸面NPTnational standard taper pipe thread60錐管螺紋OCRoctagonal ring gasket 八角環(huán)形墊片O.D.outside diameter外徑ORouter ring外定位環(huán)OS&Youtside screw and yoke明桿支架型PBEplain both ends兩端平口PEplain end平口PLslip-on welding plate 板式平焊PPLpolyphenyl對位聚苯PSBpressure seal bonnet壓力密封閥蓋PSEplain small end小端平口PWHTpost weld heat treatment焊后熱處理Rtaper pipe external thread55錐管外螺紋RCtaper pipe internal thread55錐管內(nèi)螺紋REDreduced異徑的RFraised face突面RJring joint face環(huán)連接面TBthreaded bonnet螺紋連接的閥蓋TBEthreaded both ends兩端螺紋TEMPtemperature溫度TFWTtolerance of wall thickness壁厚偏差THRthread螺紋TOEthreaded one end一端螺紋TRI-ECCThr-eccentric三偏心TSEthreaded small ends小端螺紋Ssmall小端（支管）SAWsubmerged arc weld埋弧焊SCHschedule壁厚等級SMLSseamless 無縫的SOslip-on平焊S-OUTsteam-out吹掃孔SRstress relief應力消除SRshort radius短半徑STLstellite司太立合金SSstainless steel不銹鋼SWsocket