Kurwanya ruswa yibyuma bitandukanye

Kurwanya ruswa yibyuma biterwa na chromium, ariko kubera ko chromium ari kimwe mubigize ibyuma, uburyo bwo kurinda buratandukanye.Iyo hiyongereyeho chromium igera kuri 10.5%, kurwanya kwangirika kwikirere kwicyuma byiyongera cyane, ariko iyo chromium iri hejuru, nubwo kurwanya ruswa bishobora gukomeza kunozwa, ntabwo bigaragara.Impamvu nuko kuvanga ibyuma hamwe na chromium bihindura ubwoko bwa oxyde yo hejuru hejuru ya oxyde yo hejuru isa niyakozwe kumyuma ya chromium.Iyi oxyde ikungahaye cyane kuri okiside irinda ubuso ubundi okiside.Iyi oxyde ya oxyde iroroshye cyane, inyuzamo urumuri rusanzwe rwicyuma rushobora kugaragara, igaha ibyuma bitagira umwanda ubuso bwihariye.Byongeye kandi, niba igice cyo hejuru cyangiritse, hejuru yicyuma cyerekanwe nikirere nikirere cyo kwikosora, kongera gukora iyi oxyde "passivation film", kandi ikomeze kugira uruhare mukurinda.Kubwibyo, ibyuma byose bidafite ingese bifite ibintu bihuriweho, ni ukuvuga, chromium iri hejuru ya 10.5%.Usibye chromium, ibintu bikunze gukoreshwa bivanga ni nikel, molybdenum, titanium, niobium, umuringa, azote, nibindi, kugirango byuzuze ibisabwa muburyo butandukanye bwo gukoresha imiterere nimiterere yibyuma bitagira umwanda.
304 nicyuma-rusange-ibyuma bitagira umuyonga bikoreshwa cyane mugukora ibikoresho nibice bisaba imikorere myiza muri rusange (kurwanya ruswa no guhinduka).
301 ibyuma bidafite ingese byerekana imirimo igaragara mugihe cyo guhindura ibintu, kandi ikoreshwa mubihe bitandukanye bisaba imbaraga zisumba izindi.
302 ibyuma bidafite ingese ni impinduka ya 304 ibyuma bidafite ingese hamwe na karubone nyinshi, zishobora kubona imbaraga nyinshi mukuzunguruka gukonje.
302B ni ubwoko bwibyuma bidafite ingese hamwe na silikoni nyinshi, ifite imbaraga nyinshi zo kurwanya ubushyuhe bwinshi.
303 na 303S e ni gukata kubusa ibyuma bitagira umuyonga birimo sulfure na seleniyumu, kandi bikoreshwa mubisabwa aho gukata kubuntu no hejuru yubuso birasabwa cyane cyane.303Se ibyuma bidafite ingese nabyo bikoreshwa mugukora ibice bisaba guhungabana bishyushye, kuko muribi bihe, iki cyuma kidafite ingese gifite akazi gashyushye.
304L ni karubone yo hasi ya 304 ibyuma bidafite ingese bikoreshwa aho gusudira bisabwa.Ibiri munsi ya karubone bigabanya imvura ya karbide muri zone yibasiwe nubushyuhe hafi ya weld, ibyo bikaba bishobora gutuma habaho kwangirika kwangirika (isuri ya weld) yicyuma kitagira umwanda mubidukikije bimwe na bimwe.
304N ni azote irimo ibyuma bitagira umwanda, kandi azote yongeweho kugirango yongere imbaraga zicyuma.
305 na 384 ibyuma bitagira umuyonga birimo nikel ndende kandi bifite igipimo gito cyakazi cyo gukomera, bigatuma gikoreshwa mubikorwa bitandukanye bisaba ubukonje bukabije.
308 ibyuma bidafite ingese bikoreshwa mugukora electrode.
309, 310, 314 na 330 ibyuma bidafite ingese birasa cyane, murwego rwo kunoza okiside hamwe nimbaraga zibyuma byicyuma mubushyuhe bwinshi.30S5 na 310S ni variant ya 309 na 310 ibyuma bitagira umwanda, itandukaniro gusa nuko ibirimo karubone biri hasi, kugirango hagabanuke imvura ya karbide hafi ya weld.330 ibyuma bidafite ingese bifite imbaraga zo kurwanya karburizasi hamwe no guhangana nubushyuhe bwumuriro.
Ubwoko bwa 316 na 317 ibyuma bitagira umwanda birimo aluminiyumu bityo bikaba birwanya cyane kwangirika kwangirika kurenza 304 ibyuma bitagira umwanda mubidukikije byo mu nyanja n’inganda.Muri byo, ibyuma 316 bidafite ibyuma birimo ibyuma bike bya karuboni 316L, azote irimo azote ifite imbaraga nyinshi zitagira umuyonga 316N, hamwe n’icyuma gipima ubusa 316F gifite sulfure nyinshi.
321, 347 na 348 ni ibyuma bidafite ingese bigizwe na titanium, niobium wongeyeho tantalum na niobium, bikwiranye no gusudira bikoreshwa mu bushyuhe bwinshi.348 ni ubwoko bwibyuma bidafite ingese bikwiranye ninganda zikoresha ingufu za kirimbuzi, bifite aho bigarukira ku bwinshi bwa tantalum na diyama.