15Mo3 (15MoG): He paipa rino tēnei i raro i te paerewa DIN17175. He ngongo rino waro molybdenum iti te diameter mō te pōro me te whakamahana nui, ā, he rino kaha wera momo peara. I te tau 1995, i whakatōkia kiGB5310ā, ko tōna ingoa ko 15MoG. He māmā noa iho tōna hanganga matū, engari kei roto ko te molybdenum, nō reira he kaha ake tōna wera i te maitai waro, me te pupuri tonu i te mahi tukanga rite tonu ki te maitai waro. Nā tōna mahi pai, te utu iti, kua whānuitia te whakamahinga puta noa i te ao. Heoi, he āhua ki te whakakāwhata te maitai i muri i te mahi roa i te pāmahana teitei, nō reira me whakahaere tōna pāmahana whakahaere i raro i te 510℃, ā, me whakawhāiti te nui o te Al i tāpirihia ki te whakarewa hei whakahaere me te whakaroa i te tukanga whakakāwhata. Ko te nuinga o tēnei ngongo maitai e whakamahia ana mō te whakamahana pāmahana iti me te whakamahana pāmahana iti. Kei raro iho i te 510℃ te pāmahana pakitara. Ko tōna 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; Ko te taumata kirihou delta 22, neke atu rānei.

15CrMoG:GB5310-95 te maitai (e rite ana ki te maitai 1CR-1/2Mo me te 11/4CR-1/2MO-Si e whakamahia whānuitia ana i te ao), he nui ake te ihirangi chromium i te maitai 12CrMo, nō reira he kaha ake tōna wera i te 500-550℃. Ina neke atu te pāmahana i te 550℃, ka tino heke te kaha wera o te maitai. Ina whakamahia mō te wā roa i te 500-550℃, kāore e puta te whakakāwhata, engari ka puta te whakaporoporo carbide me te tohatoha anō i ngā huānga whakarewa, ka heke te kaha wera o te maitai. He pai te ātete o te maitai ki te whakangā i te 450℃. He pai te mahi a te hanga paipa me te tukanga whakarewa. Ko te nuinga o te wā ka whakamahia hei paipa mamaoa pēhanga teitei me te pēhanga waenga me te pouaka hononga me te tawhā mamaoa i raro i te 550℃, te ngongo whakamahana nui me te pāmahana pakitara i raro i te 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 āhua whakamahana noa, ko te taumata kaha σs≥235, σb≥440-640 MPa; Kirihou delta p 21.

T22 (P22), 12Cr2MoG: T22 (P22) keiASME SA213 (SA335) ngā rauemi waehere, kei roto iGB5310-95. I roto i te raupapa maitai CR-Mo, he tino teitei te kaha o tōna wera, he rite tonu te kaha pumau o te pāmahana me te ahotea whakaaetia i te maitai 9CR-1Mo, nō reira he whānuitia te whakamahinga i roto i te hiko wera o tāwāhi, te hiko karihi me ngā oko pēhanga. Heoi, he iti iho tōna ōhanga hangarau i tā tātou 12Cr1MoV, nō reira he iti ake te whakamahinga i roto i te hanga poiha hiko wera o te whare. Whakamahia anake ina hiahiatia (ina koa ka hangaia me te hangaia kia rite ki te waehere ASME). Kāore te maitai e pāngia e te maimoatanga wera, ā, he tino pakari te kirihou me te mahi whakarewa pai. Ko te ngongo diameter iti T22 te nuinga e whakamahia ana hei ngongo mata whakamahana pakitara whakarewa i raro i te 580℃ me te whakamahana anō, me ētahi atu.P22Ko te ngongo diameter nui e whakamahia ana i roto i te pakitara whakarewa, ko te pāmahana kāore e neke ake i te 565℃ i roto i te pouaka hononga whakamahana/whakamahana anō me te paipa mamaoa matua. Ko tōna 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 āhua whakamahana noa, ko te taumata kaha σs≥280, σb≥450-600 MPa; Ko te kirihou delta 20, neke atu rānei.

12Cr1MoVG:GB5310Ko te maitai paerewa nano-95, he mea whakamahi whānuitia te maitai whakamahana nui o te whare, te pouaka kohikohi me te paipa mamaoa matua. He rite tonu te hanganga matū me ngā āhuatanga miihini o te pereti 12Cr1MoV. He māmā noa iho tōna hanganga matū, he iti iho i te 2% te nui o te koranu katoa, mō te maitai kaha wera iti-waro, iti-koranu. Ka taea e te vanadium te hanga i te carbide VC pumau me te waro, ka taea ai te hanga i te chromium me te molybdenum i roto i te maitai kia pai ake ai te noho i roto i te ferrite, me te whakaroa i te tere whakawhiti o te chromium me te molybdenum mai i te ferrite ki te carbide, kia pumau ake ai te maitai i te pāmahana tiketike. Ko te tapeke o ngā huānga koranu i roto i tēnei maitai he haurua noa iho o te maitai 2.25 CR-1Mo e whakamahia whānuitia ana ki tāwāhi, engari ko te kaha pumau i te 580℃ me te 100,000 h he 40% teitei ake i tērā o muri. Heoi anō, he māmā noa iho te tukanga whakaputa, ā, he pai te mahi whakarewa. Mena he tino pakari te tukanga whakamahana, ka taea te whakatutuki i te mahi whānui me te kaha wera. Ko te whakahaere tuturu o te teihana hiko e whakaatu ana ka taea tonu te whakamahi i te paipa mamaoa matua 12Cr1MoV i muri i te mahi haumaru i te 540℃ mō ngā haora 100,000. Ko te ngongo whānui-diameter te nuinga o te wā e whakamahia ana hei pouaka kohikohi me te awa mamaoa matua o te tawhā mamaoa i raro i te 565℃, ā, ko te ngongo whānui-diameter ka whakamahia mō te ngongo mata whakamahana poihau o te pāmahana pakitara whakarewa i raro i te 580℃.

12Cr2MoWVTiB (G102) :Gb5310-95 i roto i te maitai, mō te whanaketanga o Haina i ngā tau 1960, he iti te waro, he iti te koranu (he iti te kanorau) te maitai kaha wera momo Bainite, mai i ngā tau 1970 i whakaurua ki roto i te paerewa YB529-70 a te Manatū Ahumahi Whakarewa, ā, inaianei ko te paerewa ā-motu, i te mutunga o te tau 1980 ka whakauruhia te maitai mā te Manatū Ahumahi Whakarewa, te Manatū Mīhini me te Manatū Hiko ki te tautuhi hononga. He pai ngā āhuatanga miihini whānui o te maitai, ā, he teitei ake tōna kaha wera me te pāmahana ratonga i ērā o ngā maitai rite i tāwāhi, e eke ana ki te taumata o ētahi maitai austenitic chromium-nickel i te 620℃. Nā te mea he maha ngā momo huānga whakarewa kei roto i te maitai, ā, i tāpirihia hoki hei whakapai ake i te ātete waikura o ngā huānga pēnei i te Cr, Si, kia eke ai te pāmahana ratonga mōrahi ki te 620℃. Ko te mahi tuturu o te teihana hiko e whakaatu ana kāore te hanganga me ngā āhuatanga o te paipa maitai e tino rerekē i muri i te mahi roa. Ko te nuinga o te wā ka whakamahia hei ngongo whakamahana nui me te ngongo whakamahana anō mō ​​te poiha tawhā tino teitei me te pāmahana whakarewa ≤620℃. Ko tōna 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, TI0.08-0.18, W0.30-0.55, B0.002-0.008; I raro i te āhua whakamahana noa, ko te taumata kaha σs≥345, σb≥540-735 MPa; Kirihou delta p 18.

Sa-213t91 (335P91) : Tau maitai i roto iASME SA-213(335) paerewa. I whakawhanakehia e te Rubber Ridge National Laboratory o te Hononga o Amerika, e whakamahia ana i roto i te mana karihi (ka taea hoki te whakamahi i roto i ētahi atu āhuatanga) ngā wāhanga kōpeketanga pāmahana teitei o te rauemi, ko te maitai i ahu mai i te maitai T9 (9CR-1MO), i roto i te rohe o te ihirangi waro, me te whakahaere kaha ake i te ihirangi o te P me te S me ētahi atu huānga toenga i te wā kotahi, I hangaia he momo maitai koranu ātete-wera ferritic hou mā te tāpiri i ngā rahinga iti o te 0.030-0.070% N, 0.18-0.25% V me te 0.06-0.10% Nb hei whakatutuki i ngā whakaritenga o te whakamahine witi. KoiaASME SA-213te maitai paerewa pou, i whakatōkia ki rotoGB5310paerewa i te tau 1995, ā, ko te tohu ko 10Cr9Mo1VNb. Ko te paerewa o te ao ISO/DIS9399-2 kua whakarārangihia ko X10 CRMOVNB9-1.

Nā te nui o te chromium (9%), he pai ake tōna ātete ki te waikura, te waikura, te kaha pāmahana teitei me te kore-whakairoiro i ērā o te maitai iti-konumohe. Ko te molybdenum (1%) te mea nui hei whakapai ake i te kaha pāmahana teitei me te aukati i te āhua o te werawera o te maitai chromium. Ki te whakatauritea ki te T9, ka pai ake ngā āhuatanga whakarewa me te ngenge wera, ko te kaha pumau i te 600℃ e toru ngā wā i tērā o muri, ā, ka mau tonu te ātete waikura pāmahana teitei o te maitai T9 (9CR-1Mo). Ki te whakatauritea ki te maitai kore waikura austenitic, he iti te tauwehenga whānui, he pai te kawe wera, ā, he kaha pumau ake (pērā i te ōwehenga maitai austenitic TP304, tae noa ki te pāmahana kaha ki te 625℃, ko te pāmahana ahotea ōrite ko te 607℃). Nō reira, he pai ake ngā āhuatanga miihini whānui, he hanganga pumau me ngā āhuatanga i mua me muri i te koroheketanga, he pai ngā āhuatanga whakarewa me te tukanga, he kaha pumau teitei me te ātete waikura. Ko te nuinga o te wā ka whakamahia mō te whakamahana nui me te whakamahana anō me te pāmahana whakarewa ≤650℃ i roto i te kōhua. Ko tōna hanganga matū ko 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; I raro i te āhua whakamātao noa, ko te taumata kaha σs≥415, σb≥585 MPa; Ko te kirihou delta 20, neke atu rānei.