15Mo3 (15MoG): Numuyoboro wibyuma mubisanzwe DIN17175. Nibikoresho bito bya diameter ya carbone molybdenum ibyuma bya boiler na superheater, hamwe nicyuma cya pearlescent ibyuma bishyushye. Mu 1995, yarimuweGB5310akitwa 15MoG. Ibigize imiti biroroshye, ariko birimo molybdenum, bityo ifite imbaraga zumuriro nziza kuruta ibyuma bya karubone mugihe ikomeza imikorere imwe nicyuma cya karubone. Kubera imikorere myiza, igiciro gihenze, yakoreshejwe henshi kwisi. Nyamara, ibyuma bifite imyumvire yo gushushanya nyuma yigihe kirekire ikora mubushyuhe bwinshi, bityo ubushyuhe bwayo bukora bugomba kugenzurwa munsi ya 510 and, kandi umubare wa Al wongeyeho mugushonga ugomba kugarukira kugenzura no gutinza gahunda yo gushushanya. Umuyoboro wibyuma ukoreshwa cyane cyane mubushyuhe buke nubushyuhe buke. Ubushyuhe bwurukuta buri munsi ya 510 ℃. Ibigize imiti C0.12-0.20, SI0.10-0.35, MN0.40-0.80, S≤0.035, P≤0.035, MO0.25-0.35; Urwego rusanzwe rwimbaraga σs≥270-285, σb≥450-600 MPa; Delta ya plastike 22 cyangwa irenga.

15CrMoG:GB5310-95 ibyuma (bihuye na 1CR-1 / 2Mo na 11 / 4CR-1 / 2MO-Si ibyuma bikoreshwa cyane ku isi), chromium yayo iri hejuru yicyuma cya 12CrMo, bityo ifite imbaraga zumuriro kuri 500-550 ℃. Iyo ubushyuhe burenze 550 ℃, imbaraga zumuriro wibyuma zigabanuka cyane. Iyo ikoreshejwe igihe kirekire kuri 500-550 ℃, gushushanya ntibibaho, ariko karbide spheroidisation hamwe na alloying element isaranganya bibaho, bigatuma kugabanuka kwingufu zumuriro wibyuma. Icyuma gifite imbaraga zo kwidagadura kuri 450 ℃. Gukora imiyoboro yayo no gusudira imikorere nibyiza. Ikoreshwa cyane cyane nkumuyoboro mwinshi kandi uringaniye hamwe numuyoboro uhuza hamwe na parike iri munsi ya 550 ℃, umuyoboro wa superheater ufite ubushyuhe bwurukuta munsi ya 560 ℃, nibindi. Ibigize imiti 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; Mubihe bisanzwe byubushyuhe, urwego rwimbaraga σs≥235, σb≥440-640 MPa; Delta ya plastike p.

T22 (P22), 12Cr2MoG: T22 (P22) niASME SA213 (SA335) ibikoresho bya kode, birimoGB5310-95. Muri seriveri ya CR-Mo, imbaraga zayo zumuriro ni mwinshi cyane, ubushyuhe bumwe burambye hamwe ningutu zishobora kwemerwa kuruta 9CR-1Mo ibyuma birenze, bityo ikoreshwa cyane mumashanyarazi yububanyi n’amahanga, ingufu za kirimbuzi hamwe n’amato. Nyamara, ubukungu bwubuhanga bwabwo buri munsi ya 12Cr1MoV yacu, kubwibyo ntibikoreshwa cyane mubikorwa byo gutunganya amashanyarazi yo murugo. Koresha gusa mugihe bisabwa (cyane cyane iyo byateguwe kandi bikozwe ukurikije code ya ASME). Icyuma nticyumva ubushyuhe kandi gifite plastike iramba kandi ikora neza. T22 ya diameter ntoya ikoreshwa cyane nkubushyuhe bwurukuta rwicyuma kiri munsi ya 580 ℃ superheater hamwe nubushyuhe bwo gushyushya ubushyuhe, nibindi, nibindi,P22umuyoboro munini wa diameter ukoreshwa cyane mubushyuhe bwurukuta rwicyuma nturenze 565 ℃ superheater / reheater ihuza agasanduku hamwe numuyoboro wingenzi. Ibigize imiti C≤0.15, Si≤0.50, MN0.30-0.60, S≤0.025, P≤0.025, CR1.90-2.60, MO0.87-1.13; Mubihe bisanzwe byubushyuhe, urwego rwimbaraga σs≥280, σb≥450-600 MPa; Delta ya plastike 20 cyangwa irenga.

12Cr1MoVG:GB5310-95 ibyuma bisanzwe bya nano, ni umuvuduko mwinshi murugo, umuvuduko ukabije wa ultra, ingufu za subcritical power plant boiler superheater, agasanduku ko gukusanya hamwe numuyoboro wingenzi wibyuma bikoreshwa cyane. Ibigize imiti hamwe nubukanishi bwa plaque ya 12Cr1MoV ni bimwe. Ibigize imiti biroroshye, ibivanze byose biri munsi ya 2%, kuri karubone nkeya, amavuta ya pearlescent yubwoko bwicyuma gishyushye. Vanadium irashobora gukora karbide itajegajega VC hamwe na karubone, ishobora gukora chromium na molybdenum mubyuma cyane cyane ibaho muri ferrite, kandi ikagabanya umuvuduko wo kohereza chromium na molybdenum kuva ferrite ikajya kuri karbide, kuburyo ibyuma bihagaze neza mubushyuhe bwinshi. Umubare wuzuye wibintu bivangwa muri iki cyuma ni kimwe cya kabiri cyicyuma cya 2.25 CR-1Mo ikoreshwa cyane mumahanga, ariko imbaraga ziramba kuri 580 ℃ na 100.000 h ziri hejuru ya 40% ugereranije niyanyuma. Byongeye kandi, inzira yo kubyara iroroshye kandi imikorere yo gusudira ni nziza. Igihe cyose gahunda yo gutunganya ubushyuhe irakomeye, imikorere yuzuye nimbaraga zumuriro zirashobora guhazwa. Imikorere nyayo ya sitasiyo yamashanyarazi yerekana ko umuyoboro wingenzi wa 12Cr1MoV ushobora gukomeza gukoreshwa nyuma yumutekano kuri 540 ℃ mumasaha 100.000. Umuyoboro munini wa diametre ukoreshwa cyane cyane nk'isanduku yo gukusanya hamwe n'umuyoboro w'amazi wa parike ya parike iri munsi ya 565 and, naho umuyoboro muto wa diameter ukoreshwa mu gushyushya amashyanyarazi hejuru y'ubushyuhe bw'urukuta rw'icyuma munsi ya 580 ℃.

12Cr2MoWVTiB (G102):Gb531095 urwego rw'igihugu, mu mpera z'umwaka wa 1980 ibyuma binyuze muri Minisiteri y’inganda za Metallurgiki, Minisiteri y’imashini na Minisiteri y’amashanyarazi ihuriweho. Icyuma gifite imiterere yubukanishi bwuzuye, kandi imbaraga zumuriro nubushyuhe bwa serivisi birarenze ibyuma bisa mumahanga, bigera kurwego rwa chromium-nikel austenitike ibyuma kuri 620 ℃. Ni ukubera ko ibyuma birimo ubwoko bwinshi bwibintu bivangavanze, kandi bikongerwaho no kunoza okiside yibintu nka Cr, Si, bityo ubushyuhe bwa serivisi burashobora kugera kuri 620 ℃. Imikorere nyayo ya sitasiyo yamashanyarazi yerekana ko imiterere nimiterere yumuyoboro wibyuma bidahinduka cyane nyuma yigihe kirekire. Ikoreshwa cyane cyane nka superheater tube na reheater tube ya ultra-high parameter boiler hamwe nubushyuhe bwicyuma ≤620 ℃. Ibigize imiti 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, TI0.08 -0.18, W0.30-0.55, B0.002-0.008; Mubihe bisanzwe byubushyuhe, urwego rwimbaraga σs≥345, σb≥540-735 MPa; Delta ya plastike p 18.

Sa-213t91 (335P91): Inomero yicyuma muriASME SA-213(335) bisanzwe. Yakozwe na Laboratoire yigihugu ya Rubber Ridge yo muri Reta zunzubumwe za Amerika, ikoreshwa mu mbaraga za kirimbuzi (irashobora no gukoreshwa mu zindi ngingo) ibice byo kugabanya ubushyuhe bwo hejuru bwibikoresho, ibyuma bishingiye ku byuma bya T9 (9CR-1MO), muri imipaka yibirimo bya karubone, igenzure cyane ibiri muri P na S nibindi bintu bisigaye icyarimwe, Ubwoko bushya bwibyuma byangiza ubushyuhe bwa ferritike bwashizweho hongerwaho urugero rwa 0.030-0.070% N, 0.18-0.25 % V na 0.06-0.10% Nb kugirango zuzuze ibisabwa byo gutunganya ingano. NiASME SA-213inkingi isanzwe ibyuma, byatewe muriGB5310gisanzwe muri 1995 kandi amanota ni 10Cr9Mo1VNb. Ibipimo mpuzamahanga ISO / DIS9399-2 byashyizwe ku rutonde nka X10 CRMOVNB9-1.

Bitewe na chromium nyinshi (9%), irwanya okiside, irwanya ruswa, imbaraga zubushyuhe bwo hejuru hamwe nuburyo bwo kudashushanya ni byiza kuruta ibyuma bito bito. Molybdenum (1%) itezimbere cyane imbaraga zubushyuhe bwo hejuru kandi ikabuza ubushyuhe bwo gushyushya ibyuma bya chromium. Ugereranije na T9, imiterere yo gusudira hamwe nubushyuhe bwumuriro iratera imbere, imbaraga ziramba kuri 600 ℃ zikubye inshuro eshatu iyanyuma, kandi irwanya ubushyuhe bwo hejuru cyane bwo kwangirika kwicyuma cya T9 (9CR-1Mo). Ugereranije nicyuma cya austenitike kitagira umuyonga, coefficente yo kwaguka ni ntoya, ubushyuhe bwumuriro nibyiza, kandi ifite imbaraga zirambye (nko hamwe na TP304 igereranyo cyibyuma bya austenitike, kugeza ubushyuhe bukomeye ari 625 ℃, ubushyuhe buringaniye ni 607 ℃). Kubwibyo, ifite imiterere yubukanishi yuzuye, imiterere ihamye nimiterere mbere na nyuma yo gusaza, gusudira neza hamwe nibikorwa, imbaraga ziramba hamwe no kurwanya okiside. Ikoreshwa cyane cyane kuri superheater hamwe nubushyuhe hamwe nubushyuhe bwicyuma ≤650 ℃ muri boiler. Ibigize imiti 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≤0.04 , NB0.06-0.10, N0.03-0.07; Mubihe bisanzwe byubushyuhe, urwego rwimbaraga σs≥415, σb≥585 MPa; Delta ya plastike 20 cyangwa irenga.