15Mo3 (15MoG): Ọ bụ paịpụ ígwè dị na ọkọlọtọ DIN17175. Ọ bụ obere tube ígwè carbon molybdenum dị na dayameta maka boiler na superheater, yana ígwè siri ike nke pearlescent. Na 1995, a gbanwere ya naGB5310ma kpọọ ya 15MoG. Ihe mejupụtara kemịkalụ ya dị mfe, mana o nwere molybdenum, yabụ ọ nwere ike okpomọkụ ka mma karịa ígwè carbon ma na-ejigide otu ọrụ ahụ dị ka ígwè carbon. N'ihi arụmọrụ ya dị mma, ọnụ ahịa dị ọnụ ala, ejirila ya mee ihe n'ọtụtụ ebe n'ụwa. Agbanyeghị, ígwè ahụ nwere ike ịmepụta eserese mgbe ọ rụchara ọrụ ogologo oge na okpomọkụ dị elu, yabụ a ga-achịkwa okpomọkụ ọrụ ya n'okpuru 510℃, a ga-ejikwa oke Al agbakwunyere na ịgbaze ihe iji chịkwaa ma kwụsị usoro nhazi eserese. A na-ejikarị ọkpọkọ ígwè a eme ihe maka obere okpomọkụ na obere okpomọkụ. Okpomọkụ mgbidi dị n'okpuru 510℃. Ihe mejupụtara kemịkalụ ya bụ C0.12-0.20, SI0.10-0.35, MN0.40-0.80, S≤0.035, P≤0.035, MO0.25-0.35; Ọkwa ike nkịtị bụ σs≥270-285, σb≥450-600 MPa; Plastik delta 22 ma ọ bụ karịa.

15CrMoG:GB5310-95 ígwè (nke kwekọrọ na 1CR-1/2Mo na 11/4CR-1/2MO-Si ígwè a na-ejikarị eme ihe n'ụwa), ọdịnaya chromium ya dị elu karịa ígwè 12CrMo, ya mere ọ nwere ike okpomọkụ dị elu na 500-550℃. Mgbe okpomọkụ gafere 550℃, ike okpomọkụ nke ígwè ahụ na-ebelata nke ukwuu. Mgbe a na-arụ ya ogologo oge na 500-550℃, eserese anaghị eme, mana carbide spheroidization na alloying element redistribution na-eme, nke na-eduga na mbelata nke ike okpomọkụ nke ígwè ahụ. Ígwè ahụ nwere ezigbo iguzogide izu ike na 450℃. Ọrụ nhazi paịpụ na ịgbado ọkụ ya dị mma. A na-ejikarị ya eme ihe dị ka ọkpọkọ uzuoku dị elu na nke dị n'etiti na igbe njikọ nwere paramita uzuoku dị n'okpuru 550℃, ọkpọkọ na-ekpo ọkụ nke nwere okpomọkụ mgbidi dị n'okpuru 560℃, wdg. Ihe mejupụtara kemịkalụ ya bụ 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; N'okpuru ọnọdụ okpomọkụ nkịtị, ọkwa ike σs≥235, σb≥440-640 MPa; Plastik delta p 21.

T22 (P22), 12Cr2MoG: T22 (P22) bụASME SA213 (SA335) ihe koodu, nke dị naGB5310-95. Na usoro ígwè CR-Mo, arụmọrụ ike okpomọkụ ya dị elu, otu ike okpomọkụ na-adịgide adịgide na nrụgide a na-ekwe ka ọ dị elu karịa ígwè 9CR-1Mo, yabụ a na-ejikarị ya eme ihe n'ọtụtụ ebe na ike okpomọkụ mba ọzọ, ike nuklia na arịa nrụgide. Agbanyeghị, akụ na ụba teknụzụ ya dị ala karịa 12Cr1MoV anyị, yabụ a naghị eji ya eme ihe na mmepụta boiler ike okpomọkụ n'ime ụlọ. Jiri ya naanị mgbe achọrọ ya (karịsịa mgbe e mere ya ma rụpụta ya dịka koodu ASME si dị). Ígwè ahụ anaghị enwe mmetụta maka ọgwụgwọ okpomọkụ ma nwee ike ịdịgide adịgide na arụmọrụ ịgbado ọkụ dị mma. A na-ejikarị obere tube T22 dị ka okpomọkụ mgbidi ígwè dị n'okpuru 580℃ superheater na reheater elu tube, wdg.P22A na-ejikarị nnukwu tube dayameta eme ihe na okpomọkụ mgbidi ígwè ahụ nke na-erughị 565℃ superheater/reheater na ọkpọkọ uzuoku bụ isi. Ihe mejupụtara kemịkalụ ya bụ C≤0.15, Si≤0.50, MN0.30-0.60, S≤0.025, P≤0.025, CR1.90-2.60, MO0.87-1.13; N'okpuru ọnọdụ okpomọkụ nkịtị, ọkwa ike σs≥280, σb≥450-600 MPa; Plastik delta 20 ma ọ bụ karịa.

12Cr1MoVG:GB5310-95 nano standard string, bụ nnukwu nrụgide dị n'ime ụlọ, oke nrụgide dị elu, ihe na-ekpo ọkụ nke na-ekpo ọkụ nke obere ihe ọkụkụ, igbe nchịkọta na isi steam conduit ígwè a na-ejikarị eme ihe. Ihe mejupụtara kemịkalụ na ihe ndị dị na 12Cr1MoV plate bụ otu ihe ahụ. Ihe mejupụtara kemịkalụ ya dị mfe, mkpokọta ihe mejupụtara alloy erughị 2%, maka obere carbon, ụdị pearlescent alloy dị ala nke ígwè siri ike. Vanadium nwere ike ịmepụta carbide kwụsiri ike na carbon, nke nwere ike ime ka chromium na molybdenum na ígwè dịrị na ferrite, ma belata ọnụego mbufe nke chromium na molybdenum site na ferrite gaa na carbide, ka ígwè ahụ wee kwụsie ike na oke okpomọkụ. Ngụkọta ihe ndị mejupụtara alloy na ígwè a bụ naanị ọkara nke 2.25 CR-1Mo ígwè ejiri mee ihe n'ọtụtụ ebe na mba ofesi, mana ike siri ike na 580℃ na 100,000 h dị elu karịa nke nke ikpeazụ. Ọzọkwa, usoro mmepụta dị mfe ma arụmọrụ ịgbado ọkụ dị mma. Ọ bụrụhaala na usoro ọgwụgwọ okpomọkụ siri ike, a ga-emezu arụmọrụ zuru oke na arụmọrụ ike okpomọkụ. Ọrụ nke ọdụ ike ahụ na-egosi na enwere ike iji ọkpọkọ uzuoku isi 12Cr1MoV mgbe arụchara ọrụ nchekwa na 540℃ ruo awa 100,000. A na-ejikarị ọkpọkọ nnukwu dayameta eme ihe dị ka igbe nnakọta na ọkpọkọ uzuoku isi nke paramita uzuoku dị n'okpuru 565℃, a na-ejikwa obere ọkpọkọ dayameta maka ọkpọkọ elu ọkụ nke okpomọkụ mgbidi ígwè dị n'okpuru 580℃.

12Cr2MoWVTiB (G102):Gb5310-95 n'ime ígwè ahụ, maka mmepe nke China n'afọ 1960, obere carbon, obere alloy (obere ụdị dị iche iche) ígwè Bainite siri ike, site na afọ 1970, etinyere ya na ọkọlọtọ ụlọ ọrụ mmepụta ọla nke YB529-70 ugbu a, na njedebe nke afọ 1980, ígwè ahụ site na Ministry of Metallurgical Industry, Ministry of Machinery na Ministry of Electric Power recognitation. Ígwè ahụ nwere ezigbo ihe owuwu igwe zuru oke, ike okpomọkụ ya na okpomọkụ ọrụ ya dị elu karịa nke ígwè ndị yiri ya na mba ọzọ, na-eru ọkwa nke ụfọdụ ígwè chromium-nickel austenitic na 620℃. Nke a bụ n'ihi na ígwè ahụ nwere ọtụtụ ụdị ihe ndị na-agwakọta ihe, a na-agbakwụnyekwa ya iji melite iguzogide oxidation nke ihe ndị dị ka Cr, Si, yabụ okpomọkụ ọrụ kachasị elu nwere ike iru 620℃. Ọrụ nke ọdụ ike ahụ na-egosi na nhazi na ihe onwunwe nke paịpụ ígwè anaghị agbanwe nke ukwuu mgbe ọrụ ogologo oge gasịrị. A na-ejikarị ya eme ihe dị ka ọkpọkọ na ọkpọkọ ihe na-ekpo ọkụ maka ọkpọkọ paramita dị elu nke nwere okpomọkụ ígwè ≤620℃. Ihe mejupụtara kemịkalụ ya bụ 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; N'okpuru ọnọdụ okpomọkụ nkịtị, ọkwa ike σs≥345, σb≥540-735 MPa; Plastik delta p 18.

Sa-213t91 (335P91) : Nọmba ígwè dị naASME SA-213(335) ọkọlọtọ. Rubber Ridge National Laboratory nke United States of America mepụtara ya, nke e ji mee ihe n'ike nuklia (enwere ike iji ya n'akụkụ ndị ọzọ) akụkụ nrụgide okpomọkụ dị elu nke ihe ahụ, ígwè ahụ dabere na ígwè T9 (9CR-1MO), n'ókè nke ọdịnaya carbon, na-achịkwa ọdịnaya nke P na S na ihe ndị ọzọ fọdụrụ n'otu oge. E mepụtara ụdị ígwè ọhụrụ nke ferritic alloy alloy na-eguzogide okpomọkụ site na ịgbakwunye obere ọnụọgụ nke 0.030-0.070% N, 0.18-0.25% V na 0.06-0.10% Nb iji mezuo ihe achọrọ maka nhazi ọka. Ọ bụASME SA-213ígwè nkịtị nke kọlụm, nke e tinyere n'ime yaGB5310ọkọlọtọ n'afọ 1995, ọkwa ya bụkwa 10Cr9Mo1VNb. E depụtara ọkọlọtọ mba ụwa ISO/DIS9399-2 dị ka X10 CRMOVNB9-1.

N'ihi oke ọdịnaya chromium ya (9%), iguzogide oxidation ya, iguzogide corrosion, ike okpomọkụ dị elu na enweghị eserese ka mma karịa nke ígwè alloy dị ala. Molybdenum (1%) na-eme ka ike okpomọkụ dị elu ka mma ma na-egbochi ọchịchọ embritting ọkụ nke ígwè chromium. Ma e jiri ya tụnyere T9, a na-eme ka ike ọgwụgwụ na ike ọgwụgwụ okpomọkụ ka mma, ike siri ike na 600℃ dị okpukpu atọ karịa nke ikpeazụ, a na-ejikwa ezigbo iguzogide corrosion okpomọkụ dị elu nke ígwè T9 (9CR-1Mo). Ma e jiri ya tụnyere ígwè anaghị agba nchara austenitic, oke mgbasa ahụ dị obere, ike okpomọkụ dị mma, ma nwee ike siri ike dị elu (dịka na oke ígwè austenitic TP304, ruo mgbe okpomọkụ siri ike bụ 625℃, okpomọkụ nrụgide nhata bụ 607℃). Ya mere, ọ nwere ihe ndị mejupụtara igwe zuru oke, nhazi na ihe ndị kwụsiri ike tupu na mgbe ọ kachara nká, ezigbo ihe ndị e ji agbakọta na usoro, ike siri ike dị elu na iguzogide oxidation. A na-ejikarị ya eme ihe maka superheater na reheater na okpomọkụ ígwè ≤650℃ na boiler. Ihe mejupụtara kemịkalụ ya bụ 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; N'ọnọdụ okpomọkụ nkịtị, ọkwa ike σs≥415, σb≥585 MPa; Plastik delta 20 ma ọ bụ karịa.