15Mo3 (15MoG): He paipa maitai i roto i te paerewa DIN17175. He iti te diameter waro molybdenum ngongo maitai mo te kohu me te superheater, me te momo pearlescent maitai kaha wera. I te tau 1995, i whakawhitia kiGB5310ka tapaina ko 15MoG. He maamaa te hanganga matū, engari he molybdenum kei roto, na reira he pai ake te kaha o te waiariki i te waro maitai i te wa e mau tonu ana te mahinga o te mahi ki te waro maitai. Na te pai o tana mahi, te utu iti, kua whakamahia nuitia i te ao. Engari, ko te maitai he kaha ki te graphitization i muri i te mahi mo te wa roa i te teitei o te wera, na reira me whakahaere tona pāmahana whakahaere i raro i te 510 ℃, me te nui o te Al kua tapiritia ki te whakarewatanga me iti ki te whakahaere me te whakaroa i te tukanga graphitization. Ko te nuinga o tenei ngongo maitai e whakamahia ana mo te wera wera iti me te whakamahana wera iti. Ko te pāmahana pakitara kei raro i te 510 ℃. Ko tana hanganga matū C0.12-0.20, SI0.10-0.35, MN0.40-0.80, S≤0.035, P≤0.035, MO0.25-0.35; Ko te taumata kaha noa σs≥270-285, σb≥450-600 MPa; Delta kirihou 22 teitei ake ranei.

15CrMoG:GB5310-95 maitai (e rite ana ki te 1CR-1 / 2Mo me te 11 / 4CR-1 / 2MO-Si te maitai e whakamahia whanuitia ana i te ao), he teitei ake tona ihirangi chromium i te 12CrMo maitai, no reira he teitei ake te kaha o te wera i te 500-550 ℃. Ka nui ake te mahana ki te 550 ℃, ka tino heke te kaha o te wera o te maitai. I te wa e whakahaerehia ana mo te wa roa i te 500-550 ℃, kaore e puta te graphitization, engari ka puta te carbide spheroidization me te tohatoha huānga whakakotahi, e arahi ana ki te heke o te kaha wera o te maitai. He pai te parenga o te maitai ki te whakangā i te 450 ℃. He pai te mahi o te hanga paipa me te mahi whakaahuru. Kei te nuinga whakamahia te reira rite tiketike, me te reo pehanga mamaoa conduit me te pouaka honoa ki te mamaoa tawhā i raro 550 ℃, superheater ngongo ki te pāmahana taiepa i raro i 560 ℃, me ētahi atu Ko tōna hanganga matū C0.12-0.18, Si0.17-0.37, MN0.40 -0.70, S≤0.030, P≤0.030, CR0.80-1.10, MO0.40-0.55; I raro i te ahua o te whakamaarama, te taumata kaha σs≥235, σb≥440-640 MPa; Delta kirihou p 21.

T22 (P22), 12Cr2MoG: T22 (P22) heASME SA213 (SA335) rauemi waehere, kei rotoGB5310-95. I roto i te raupapa rino CR-Mo, he ahua teitei te kaha o te kaha o te wera, te kaha o te kaha o te pāmahana me te ahotea e whakaaetia ana i te 9CR-1Mo te maitai teitei ake, na reira ka whakamahia nuitia i roto i te mana waiariki ke, te mana karihi me nga oko pehanga. Heoi, he iti ake tana ohanga hangarau ki ta maatau 12Cr1MoV, na reira he iti ake te whakamahi i roto i nga mahi whakangao hiko waiariki a-whare. Whakamahia anake ina hiahiatia (ina koa ka hangaia me te hanga i runga i te waehere ASME). Ko te rino kaore e aro ki te maimoatanga wera me te kirihou roa teitei me te pai o te mahi whakapiri. T22 ngongo diameter iti te nuinga whakamahia rite te pāmahana taiepa whakarewa i raro i 580 ℃ superheater me reheater ngongo mata whakawera, etc.,P22ngongo diameter nui te nuinga whakamahia i roto i te pāmahana taiepa whakarewa he kore neke atu i te 565 ℃ superheater / reheater pouaka hononga me te putorino mamaoa matua. Ko tana hanganga matū C≤0.15, Si≤0.50, MN0.30-0.60, S≤0.025, P≤0.025, CR1.90-2.60, MO0.87-1.13; I raro i te tikanga whakamarumaru noa, te taumata kaha σs≥280, σb≥450-600 MPa; Delta kirihou 20 neke atu ranei.

12Cr1MoVG:GB5310-95 nano te maitai paerewa, ko te pehanga teitei o te whare, te pehanga ultra teitei, te whakawera hiko whakawera tipu hiko, te pouaka kohinga me te kohanga mamaoa matua e whakamahia whanuitia ana. Ko te hanganga matū me nga taonga miihini o te pereti 12Cr1MoV he rite tonu. He ngawari tana hanganga matū, he iti iho i te 2% te tapeke o te ihirangi koranu, mo te waro iti, te momo pearlescent koranu iti o te rino kaha wera. Ka taea e te Vanadium te hanga i te carbide VC me te waro, ka taea te hanga i te chromium me te molybdenum i roto i te rino pai ake i roto i te ferrite, me te whakaheke i te tere o te whakawhiti o te chromium me te molybdenum mai i te ferrite ki te carbide, kia pai ake ai te rino i te wera nui. Ko te tapeke o nga mea whakauru i roto i tenei maitai ko te haurua anake o te 2.25 CR-1Mo maitai e whakamahia whanuitia ana ki waho, engari ko te kaha roa i te 580 ℃ me te 100,000 h he 40% teitei ake i tera o muri. I tua atu, he ngawari te mahinga whakaputa me te pai o te mahi whakahiato. I te mea he tino kaha te tukanga maimoatanga wera, ka makona te mahi matawhānui me te kaha o te wera. Ko te tino mahi o te teihana hiko e whakaatu ana ka taea tonu te whakamahi i te pipeline mamaoa matua 12Cr1MoV i muri i te mahi haumaru i te 540 ℃ mo nga haora 100,000. Ko te ngongo nui-diameter te nuinga e whakamahia ana hei pouaka kohinga me te kohanga mamaoa matua o te tawhā mamaoa i raro i te 565 ℃, ka whakamahia te ngongo iti-diameter mo te ngongo mata whakawera kōhua ​​o te pāmahana taiepa whakarewa i raro i te 580 ℃.

12Cr2MoWVTiB (G102) :Gb5310-95 i roto i te maitai, mo te whanaketanga o Haina i roto i te 1960s, iti waro, iti koranu (he nui iti o te kanorau) momo Bainite wera kaha maitai, i te 1970 i whakaurua i roto i te Manatū o Metallurgical Ahumahi paerewa YB529-70 a inaianei te paerewa motu, i te mutunga o 1980 te maitai i roto i te Manatū Ahumahi Metallurgical, te Manatū Miihini me te Manatū mana hiko te tautuhi tahi. He pai nga ahuatanga miihini matawhānui o te maitai, a, ko te kaha o te wera me te wera o te ratonga he teitei ake i era o nga tira rite ki waho, ka eke ki te taumata o etahi tira austenitic chromium-nickel i te 620 ℃. Ko te mea tenei na te mea kei roto i te rino he maha nga momo whakauru whakauru, me te taapiri ano ki te whakapai ake i te aukati o te waikura o nga huānga penei i te Cr, Si, na reira ka taea e te pāmahana ratonga teitei te eke ki te 620 ℃. Ko te tino mahi o te teihana hiko e whakaatu ana ko te hanganga me nga taonga o te putorino maitai e kore e rereke i muri i te mahi roa. Kei te nuinga whakamahia te reira rite ngongo superheater me te ngongo whakamahana mo te kōhua ​​tawhā ultra-tiketike ki te pāmahana whakarewa ≤620 ℃. Ko tana hanganga matū C0.08-0.15, Si0.45-0.75, MN0.45-0.65, S≤0.030, P≤0.030, CR1.60-2.10, MO0.50-0.65, V0.28-0.42, TI0.0.0. -0.18, W0.30-0.55, B0.002-0.008; I raro i te tikanga whakamarumaru noa, te taumata kaha σs≥345, σb≥540-735 MPa; Delta kirihou p 18.

Sa-213t91 (335P91): Tau maitai i rotoASME SA-213(335) paerewa. Kei te whakawhanakehia e te Rubber Ridge National Laboratory o te United States of America, whakamahia i roto i te mana karihi (ka taea hoki te whakamahi i roto i te tahi atu āhuatanga) teitei wāhanga kōpeketanga pāmahana o te rauemi, te maitai kei runga i T9 (9CR-1MO) maitai, i roto i te rohe o te ihirangi waro, ka kaha ake te whakahaere i nga ihirangi o te P me te S me etahi atu huānga toenga i te wa ano, I hangaia he momo hou o te rino koranu wera-wera ma te taapiri i nga waahanga 0.030-0.070% N, 0.18-0.25% V me 0.06-0.10% Nb ki te whakatutuki i nga whakaritenga o te parai witi. Ko teASME SA-213he rino paerewa o te pou, i whakatokia ki rotoGB5310paerewa i te tau 1995 me te tohu ko 10Cr9Mo1VNb. Ko te paerewa o te ao ISO/ DIS9399-2 kua whakarārangihia hei X10 CRMOVNB9-1.

Na te nui o te chromium (9%), he pai ake te aukati i te waikura, te aukati waikura, te kaha o te pāmahana teitei me te kore-kauwhata i nga mea o te rino koranu iti. Molybdenum (1%) te nuinga whakapai ake i te kaha pāmahana teitei, me te tautāwhi i te hehema embrittling wera o chromium maitai. Ka whakatauritea ki te T9, ka pai ake te whakahiato me nga waahi ngenge waiariki, ko te kaha roa i te 600 ℃ e toru nga wa o te whakamutunga, me te tino pai o te wera wera o te T9 (9CR-1Mo) te maitai. Ina whakaritea ki te kowiri tira austenitic, he iti te whakarea roha, he pai te kawe i te waiariki, he teitei ake te kaha (pērā i te ōwehenga maitai austenitic TP304, tae noa ki te 625 ℃ te kaha o te pāmahana, he 607 ℃ te pāmahana taumahatanga rite). Na reira, he pai ake nga ahuatanga miihini, he hanganga pumau me nga taonga i mua atu i muri i muri i te koroheketanga, he pai te pai o nga waahanga me nga waahanga tukanga, te kaha o te kaha me te aukati i te waikura. Kei te nuinga whakamahia te reira mo te superheater me te reheater ki te pāmahana whakarewa ≤650 ℃ i roto i te kōhua. Ko tana hanganga matū C0.08-0.12, Si0.20-0.50, MN0.30-0.60, S≤0.010, P≤0.020, CR8.00-9.50, MO0.85-1.05, V0.18-0.25, Al≤ , NB0.06-0.10, N0.03-0.07; I raro i te tikanga whakamarumaru noa, te taumata kaha σs≥415, σb≥585 MPa; Delta kirihou 20 neke atu ranei.