20G:GB5310-95 insimbi evamile yokwamukela (ibanga elihambelanayo langaphandle: I-ST45.8 yaseJalimane, i-STB42 yaseJapane, i-United States SA106B), iyipayipi lensimbi elibhayela elisetshenziswa kakhulu, ukwakheka kwamakhemikhali kanye nezakhiwo zemishini kanye nepuleti elingu-20 ngokuyisisekelo liyafana. Insimbi inamandla athile ekamelweni lokushisa kanye nokushisa okuphezulu okuphakathi, okuqukethwe kwekhabhoni ephansi, ipulasitiki engcono kanye nokuqina, ukwakheka kwayo okushisayo nokubandayo nokusebenza kwe-welding kuhle. Isetshenziswa kakhulu ekwenzeni umfutho ophakeme kanye nemingcele ephakeme yokufakwa kubhayela, izinga lokushisa eliphansi lesigaba se-superheater, i-reheater, i-economizer nodonga lwamanzi, njll. Okufana nokushisa kwepayipi elincane elingububanzi obungu-≤500℃ ipayipi elingaphezulu lokushisa, nepayipi lamanzi odongeni, ishubhu ye-economizer, izinga lokushisa elikhulu lepayipi eliwububanzi ≤450℃ ipayipi lesitimu, ibhokisi lokuqoqa (i-economizer, udonga lwamanzi, izinga lokushisa eliphansi le-superheater nebhokisi lokuhlanganisa le-reheater), izinga lokushisa elimaphakathi ≤450℃ izinsiza zamapayipi. Ngenxa yokuthi i-carbon steel izokhiqiza i-graphitization ekusebenzeni kwesikhathi eside ngaphezu kuka-450 ℃, ngakho-ke izinga lokushisa eliphakeme lesevisi yesikhathi eside lepayipi lendawo yokufudumeza lingcono kakhulu libe ngaphansi kuka-450 ℃. Insimbi kulolu hlobo lokushisa, amandla ayo angahlangabezana nezidingo ze-superheater kanye nepayipi le-steam, futhi inokumelana okuhle kwe-oxidation, ipulasitiki, ukuqina, izakhiwo zokushisela nezinye izakhiwo ezibandayo nezishisayo zokucubungula zinhle kakhulu, zisetshenziswa kabanzi. Izingxenye zensimbi ezisetshenziswa esithandweni somlilo sase-Iranian (okubhekiselwa kusethi eyodwa) yipayipi elingenisa amanzi (amathani angama-28), ipayipi lokungena lamanzi (amathani angama-20), ipayipi lokuxhuma umusi (amathani angama-26), isitsha se-economizer (8). amathani), kanye nesistimu yokunciphisa amanzi (amathani angu-5), kanti amanye asetshenziswa njengensimbi eyisicaba kanye nezinto ze-derrick (cishe amathani angu-86).

I-Sa-210c (25MnG) : Inombolo yensimbi ngaphakathiI-ASME SA-210ejwayelekile. Ishubhu eliwububanzi obuncane bensimbi ye-carbon manganese yamabhoyili nama-superheaters, kanye nensimbi enamandla ashisayo enomumo weparele. Ngo-1995, yadluliselwa ku-GB5310 futhi yaqanjwa ngokuthi 25MnG. Ukwakheka kwayo kwamakhemikhali kulula, ngaphandle kokuqukethwe okuphezulu kwekhabhoni ne-manganese, okunye kufana ne-20G, ngakho-ke amandla okukhiqiza acishe abe ngu-20% ngaphezu kwe-20G, futhi ipulasitiki nokuqina kufana ne-20G. Inqubo yokukhiqiza yensimbi ilula futhi ukusebenza kwayo okubandayo nokushisayo kusebenza kahle. Ukuyisebenzisa esikhundleni se-20G, kunganciphisa ubukhulu bodonga, kunciphise inani lezinto ezibonakalayo, kodwa futhi kungathuthukisa ukudluliswa kokushisa kwebhayili. Izingxenye zayo zokusebenzisa nezinga lokushisa elisetshenziswayo ngokuyisisekelo liyafana ne-20G, ikakhulukazi elisetshenziselwa izinga lokushisa elingaphansi kuka-500 ℃ odongeni lwamanzi, i-economizer, i-superheater ephansi nezinye izakhi.
I-Sa-106c: Yinombolo yensimbi phakathiI-ASME SA-106ejwayelekile. Ishubhu lensimbi le-carbon-manganese lamabhoyili anezinga lokushisa eliphezulu anobubanzi obukhulu kanye nama-superheaters. Ukwakheka kwayo kwamakhemikhali kulula, kufana ne-20G carbon steel, kodwa okuqukethwe kwekhabhoni ne-manganese kuphakeme, ngakho amandla ayo okukhiqiza acishe abe ngu-12% ngaphezu kwe-20G, kanti ipulasitiki, ukuqina akubi. Inqubo yokukhiqiza yensimbi ilula futhi ukusebenza kwayo okubandayo nokushisayo kusebenza kahle. Ukuyisebenzisa esikhundleni somqoqi wokukhiqiza we-20G (i-economizer, udonga lokupholisa amanzi, ukushisa okuphansi kwe-superheater kanye nebhokisi lokuhlanganisa le-reheater), ukushuba kodonga kungancishiswa cishe ngo-10%, okungagcini nje ukulondoloza izindleko zezinto ezibonakalayo, kodwa futhi kunciphise umthwalo wokushisela, futhi uthuthukise umehluko wokucindezeleka lapho ibhokisi lokuhlanganisa liqala.
15Mo3 (15 MoG) : Kuyipayipi lensimbi ku-DIN17175 ejwayelekile. Ishubhu lensimbi elincane eliwububanzi be-carbon molybdenum le-boiler ne-superheater, kanye nohlobo lwe-pearlescent yensimbi yamandla ashisayo. Ngo-1995, yadluliselwa ku-GB5310 futhi yaqanjwa ngokuthi i-15MoG. Ukwakheka kwayo kwamakhemikhali kulula, kodwa iqukethe i-molybdenum, ngakho inamandla angcono okushisa kune-carbon steel kuyilapho igcina ukusebenza kwenqubo efanayo njenge-carbon steel. Ngenxa yokusebenza kwayo okuhle, intengo eshibhile, iye yasetshenziswa kabanzi emhlabeni. Kodwa-ke, insimbi inomkhuba wokwenza i-graphitization ngemva kokusebenza isikhathi eside ekushiseni okuphezulu, ngakho-ke izinga lokushisa layo lokusebenza kufanele lilawulwe ngaphansi kuka-510 ℃, futhi inani le-Al elingeziwe ekuncibilikeni kufanele likhawulelwe ukulawula nokubambezeleka kwenqubo ye-graphitization. Leli shubhu lensimbi lisetshenziselwa ikakhulukazi ukushisa okuphansi kwe-superheater kanye nokushisa okuphansi kokushisa kabusha. Izinga lokushisa lodonga lingaphansi kuka-510 ℃. Ukwakheka kwayo kwamakhemikhali C0.12-0.20, SI0.10-0.35, MN0.40-0.80, S≤0.035, P≤0.035, MO0.25-0.35; Izinga lamandla elivamile σs≥270-285, σb≥450-600 MPa; I-Plastiki Delta 22 noma ngaphezulu.