ferritic simbi isina tsvina
Chromium 15% kusvika 30%. Kuramba kwayo kwegora, kusimba uye weldability kunowedzera nekuwedzera kwe chromium content, uye kuramba kwayo kune chloride stress corrosion iri nani pane mamwe marudzi esimbi isina tsvina, akadai Crl7, Cr17Mo2Ti, Cr25, Cr25Mo3Ti, Cr28, etc. Ferritic Stainless steel simbi ine shongedzo yakanaka ye corrosion ye corrosion, asi inopikisa corrosion yakanaka ye oxid. maitiro ayo emagetsi uye maitiro ekuita hazvina kunaka. Inonyanya kushandiswa mune acid-resistant zvimiro zvine kuderera kushushikana uye se anti-oxidation simbi. Rudzi urwu rwesimbi runogona kuramba nekuora kwemhepo, nitric acid uye munyu mhinduro, uye ine hunhu hwekunaka kwepamusoro tembiricha oxidation kuramba uye diki yekupisa kwekuwedzera coefficient. Inoshandiswa mu nitric acid uye midziyo yefekitari yezvokudya, uye inogonawo kushandiswa kugadzira zvikamu zvinoshanda pakupisa kwakanyanya, zvakadai sezvikamu zvegasi turbine, nezvimwewo.

Austenitic simbi isina tsvina
Iine zvinopfuura 18% chromium, uye inewo inenge 8% nickel uye shoma shoma ye molybdenum, titanium, nitrogen nezvimwe zvinhu. Kuita kwakanaka kwese, kushingirira mukuora nema media akasiyana. Akajairika mamakisi eaustenitic simbi isina tsvina ndeye 1Cr18Ni9, 0Cr19Ni9 zvichingodaro. Iyo Wc ye0Cr19Ni9 simbi isingasviki 0.08%, uye nhamba yesimbi yakanyorwa se "0".Iyi mhando yesimbi ine yakawanda yeNi uye Cr, iyo inoita kuti simbi austenitic pakupisa kwekamuri.Iri rudzi rwesimbi ine plastiki yakanaka, kuoma, weldability, corrosion resistance uye isiri-magnetic kana kupera simba rekugadzirisa magineti uye inoshandiswa kune yakanaka magineti ekugadzirisa. gadzira michina inodzivirira acid, semidziyo isingadziviriri uye michina, mapaipi, nitric acid-resistant emidziyo zvikamu, nezvimwewo, uye inogona kushandiswa sechinhu chikuru chesimbi isina tsvina yewachi Austenitic simbi isina simbi inowanzo gamuchira mhinduro, kureva kuti, simbi inodziya kusvika 1050-1150-yemvura yakanyungudutswa uyezve kuwana mvura. austenite chimiro.

Austenitic-ferritic duplex simbi isina tsvina
Iyo ine zvakanakira zvese austenitic uye ferritic Stainless simbi, uye ine superplasticity. Austenite uye ferrite imwe neimwe account kune inenge hafu yesimbi isina tsvina. Panyaya yeyakaderera kabhoni, zviri mukati mechromium (Cr) i18% ~ 28%, uye zvirimo nickel (Ni) ndeye 3% ~ 10%. Mamwe simbi anewo alloying zvinhu zvakadai Mo, Cu, Si, Nb, Ti, uye N. Iyi mhando yesimbi ine maitiro ezvose austenitic uye ferritic stainless steels. Kana ichienzaniswa neferrite, ine yakakwira plastiki uye kuoma, hapana tembiricha yekamuri brittleness, yakanyanya kunatsiridza intergranular corrosion resistance uye welding performance, ichichengetedza simbi Muviri wesimbi isina tsvina inoputika pa475 ° C, ine high thermal conductivity, uye ine maitiro e superplasticity. Kuenzaniswa neaustenitic Stainless simbi, ine simba rakawanda uye yakanyanya kunatsiridza kuramba kune intergranular corrosion uye chloride stress corrosion. Duplex simbi isina tsvina ine yakanakisa pitting corrosion resistance uye zvakare iri nickel-saving stainless simbi.

Kunaya kwakaoma Stainless Simbi
Iyo matrix ndeye austenite kana martensite, uye anowanzo shandiswa mamakisi ekunaya anoomesa simbi isina tsvina ndeye 04Cr13Ni8Mo2Al zvichingodaro. Isimbi isina tsvina inogona kuomeswa (kusimbiswa) nekunaya kwemvura kuomesa (inozivikanwawo sekuomesa zera).

Martensitic simbi isina tsvina
High simba, asi murombo plasticity uye weldability. Magiredhi anowanzo shandiswa emartensitic stainless simbi 1Cr13, 3Cr13, zvichingodaro, nekuda kweiyo yakakwira kabhoni, ine simba rakawanda, kuomarara uye kusapfeka kupfeka, asi iyo corrosion resistance ishoma, uye inoshandiswa kune yakakwira mechanical zvivakwa uye corrosion resistance. Zvimwe zvikamu zvakajairika zvinodiwa, zvakadai sezvitubu, mashizha emagetsi emagetsi, hydraulic press valves, etc. Iyi mhando yesimbi inoshandiswa mushure mekudzima uye kupisa. Annealing inodiwa mushure mekugadzira uye kutsika.