Amavuta	%	Ni	Cr	Mo	Cu	N	C	Mn	Si	P	S
254SMO	Min.	17.5	19.5	6	0.5	0.18
Icyiza.	18.5	20.5	6.5	1	0.22	0.02	1	0.8	0.03	0.01

254SMO Imiterere yumubiri:

Ubucucike	8.0 g / cm3
Ingingo yo gushonga	1320-1390 ℃

254SMO byibura ibikoresho bya mehaniki mubushyuhe bwicyumba:

Imiterere	Imbaraga Rm N Rm N / mm2	Tanga imbaraga RP0.2N / mm2	Kurambura A5%
254 SMO	650	300	35

 

Ibiranga:
Ubwinshi bwa molybdenum, chromium na azote byakozwe 254SMO bifite imbaraga nziza zo kurwanya imyobo no kwangirika. Umuringa wongereye imbaraga zo kurwanya ruswa muri acide. Mubyongeyeho, bitewe nibirimo byinshi bya nikel, chromium na molybdenum, kuburyo 254SMO ifite imbaraga nziza zo guhangayika imikorere yangirika.
1.Uburyo bwinshi bwo gukoresha uburambe bwerekanye ko na iin ubushyuhe bwo hejuru, 254SMO mumazi yinyanja nayo irwanya cyane ikinyuranyo cyimikorere ya ruswa, gusa ubwoko buke bwibyuma bidafite ingese hamwe niyi mikorere.
2.22
3.254SMO bitewe na azote nyinshi, imbaraga zayo za mashini kuruta ubundi bwoko bwibyuma bya austenitike bidafite ibyuma biri hejuru. Mubyongeyeho, 254SMO nayo irashobora kwaguka cyane ningaruka zingaruka hamwe no gusudira neza.
4.22 Ariko, ntabwo byagize ingaruka mbi kubirwanya kwangirika kwicyuma.

 

Imiterere y'ibyuma
254SMO ni isura-yububiko bwa cubic lattice. Kugirango ubone imiterere ya austenitis, 254SMO rusange annealing muri 1150-1200 ℃ .Mu bihe bimwe na bimwe, ibikoresho wenda hamwe nibimenyetso byicyuma cyo hagati (χ icyiciro na α-icyiciro). Nyamara, imbaraga zazo hamwe no kurwanya ruswa ntabwo bigira ingaruka mbi mubihe bisanzwe. Iyo bishyizwe mu ntera ya 600-1000 ℃, birashobora guhinduka mugihe cyimvura igwa.

 

Kurwanya ruswa
254SMO ifite karubone nkeya cyane, bivuze ko akaga gaterwa nubushyuhe buterwa nimvura ya karbide ari nto cyane. Ndetse no muri 600-1000 ℃ nyuma yisaha imwe sensibilisation iracyashobora Strauss ikoresheje ikizamini cyo kwangirika hagati (Strauss Test ASTMA262 order E) .Nyamara, kubera ibyuma birimo amavuta menshi. Mu bipimo byavuzwe haruguru ubushyuhe buringaniye icyiciro hamwe nicyuma gishobora kugabanywa kumupaka wimbuto. Iyi myanda ntabwo ituma ibaho kwangirika hagati yimikorere yibitangazamakuru byangirika, hanyuma, gusudira birashobora gukorwa nta kwangirika kwimiterere.Ariko mubushuhe bwa acide nitricike yibanze, iyi myanda irashobora guterwa no kwangirika kwimiterere muri zone yibasiwe nubushyuhe. Niba ibyuma bisanzwe bitagira umwanda mubisubizo birimo chloride, bromide cyangwa iyode, bizerekana pitingi, corvice ruswa cyangwa impagarara zangirika zifata ruswa. Ariko, mubihe bimwe na bimwe, kubaho kwa halide bizihutisha ruswa imwe. By'umwihariko muri aside idafite okiside. Muri acide sulfurike isukuye, 254SMO ifite imbaraga nyinshi zo kurwanya ruswa kurusha 316 (ibyuma bidafite ingese), ariko hamwe no kurwanya ruswa ugereranije na 904L (NO8904) ibyuma bitagira umwanda mwinshi. Muri acide sulfurike irimo ioni ya chloride, 254SMO ifite ubushobozi bunini bwo kurwanya ruswa. 316 ntishobora gukoreshwa mubyuma bitagira umwanda muri acide hydrochloric kuko ishobora kubaho kwangirika kwaho no kwangirika kimwe, ariko 254SMO irashobora gukoreshwa muri acide ya hydrochlorike ivanze mubushyuhe rusange. , uder akarere k'umupaka ntukeneye guhangayikishwa no kwangirika kwabaye. Ariko, tugomba kugerageza kwirinda icyuho. Muri silikatike ya fluor (H2SiF4) na aside hydrofluoric (HF), kurwanya ruswa yo kwangirika kwicyuma gisanzwe kitagira umwanda ni bike cyane, kandi 254SMO irashobora gukoreshwa mubushuhe bwagutse cyane hamwe nubushuhe.

 

Umwanya ukoreshwa ：
254SMO ni ibintu byinshi bigamije gukoreshwa mubikorwa byinshi byinganda:
1. Ibikomoka kuri peteroli, ibikoresho bya peteroli, ibikoresho bya peteroli-chimique, nkinzogera.
2.
3. Ibikoresho by'amashanyarazi ibikoresho bya gaz desulphurizasi, gukoresha ibice byingenzi: umunara winjiza, flue na plaque ihagarara, igice cyimbere, sisitemu yo gutera.
4. Muri sisitemu yo gutunganya amazi yo mu nyanja cyangwa mu nyanja, nk'amashanyarazi akoresha amazi yo mu nyanja kugira ngo akonje Condenser ifite urukuta ruto, yangiza ibikoresho byo gutunganya amazi yo mu nyanja, arashobora gukoreshwa nubwo amazi adashobora gutemba muri icyo gikoresho.
5. Inganda zangiza, nkumunyu cyangwa ibikoresho byo kuryama.
6. Guhindura ubushyuhe, cyane cyane mubikorwa bikora bya chloride ion.