intsimbi ye-ferritic
I-Chromium 15% ukuya kwi-30%. Ukumelana nokugqwala kwayo, ukuqina kunye nokunyuka kwe-weldability kunye nokunyuka komxholo we-chromium, kunye nokuchasana kwayo ne-chloride yoxinzelelo lwe-corrosion kungcono kunezinye iintlobo zensimbi engenasici, ezifana ne-Crl7, i-Cr17Mo2Ti, i-Cr25, i-Cr25Mo3Ti, i-Cr28, njl njl. iimpawu zayo zoomatshini kunye nokusebenza kwenkqubo zimbi. Isetyenziswa kakhulu kwizakhiwo ezinokumelana ne-asidi kunye noxinzelelo oluphantsi kunye nentsimbi ye-anti-oxidation. Olu hlobo lwentsimbi lunokuxhathisa ukubola kwe-atmosfera, i-nitric acid kunye nesisombululo setyuwa, kwaye ineempawu zokumelana nokushisa okuphezulu kwe-oxidation kunye ne-coefficient encinci yokwandisa i-thermal. Isetyenziswe kwi-asidi ye-nitric kunye nezixhobo zefektri yokutya, kwaye ingasetyenziselwa ukwenza iindawo ezisebenza kumaqondo okushisa aphezulu, njengeendawo ze-turbine yegesi, njl.

Austenitic steel stainless
Iqulethe ngaphezu kwe-18% ye-chromium, kwaye iqulethe malunga ne-8% ye-nickel kunye nenani elincinci le-molybdenum, i-titanium, i-nitrogen kunye nezinye izinto. Ukusebenza kakuhle kukonke, ukumelana nokubola ngamajelo ohlukeneyo eendaba. Amabakala aqhelekileyo e-austenitic stainless steel 1Cr18Ni9, 0Cr19Ni9 njalo njalo. I-Wc ye-0Cr19Ni9 yensimbi ingaphantsi kwe-0.08%, kwaye inombolo yensimbi iphawulwe ngokuthi "0". Olu hlobo lwensimbi luqulethe inani elikhulu le-Ni kunye ne-Cr, eyenza i-steel austenitic kwiqondo lokushisa eliqhelekileyo. Olu hlobo lwensimbi lunobuhle beplastiki, ukuqina, ukuwelda, ukuxhathisa ukubola kunye ne-non-magnetic okanye i-activated properties. ukwenza izixhobo ukumelana neasidi, ezifana nezikhongozeli-resistant kunye nezixhobo, imibhobho, izixhobo ze-nitric acid-resistant, njl., kwaye zinokusetyenziswa njengezona zinto zibalulekileyo iwotshi izincedisi stainless intsimbi ngokubanzi yamkela unyango isisombululo, oko kukuthi, intsimbi ifudunyezwa ukuba 1050-1150-oled okanye airco-° ukufumana i-airco-° enye. isakhiwo austenite.

Austenitic-ferritic duplex steel stainless
Ineenzuzo zazo zombini iintsimbi ze-austenitic kunye ne-ferritic, kwaye ine-superplasticity. I-Austenite kunye ne-ferrite nganye i-akhawunti malunga nesiqingatha sensimbi engenasici. Kwimeko yekhabhoni ephantsi, umxholo we-chromium (Cr) ngu-18% ~ 28%, kunye nomxholo we-nickel (Ni) ngu-3% ~ 10%. Ezinye iintsimbi nazo ziqulethe izinto ezixutywayo ezifana ne-Mo, Cu, Si, Nb, Ti, kunye ne-N. Olu hlobo lwensimbi luneempawu zombini ze-austenitic kunye ne-ferritic stainless steels. Xa kuthelekiswa ne-ferrite, ine-plasticity ephezulu kunye nokuqina, akukho ukushisa kwegumbi, ukuphuculwa kakhulu kwe-intergranular corrosion resistance kunye nokusebenza kwe-welding, ngelixa igcina intsimbi Umzimba wensimbi engenasici u-brittle kwi-475 ° C, une-conductivity ephezulu ye-thermal, kwaye uneempawu ze-superplasticity. Xa kuthelekiswa ne-austenitic steel stainless, inamandla aphezulu kwaye iphucule kakhulu ukuxhathisa kwi-intergranular corrosion kunye ne-chloride stress corrosion. I-Duplex steel stainless steel ine-pitting corrosion resistance encomekayo kwaye ikwayintsimbi egcina i-nickel.

Imvula Eyenziwe Yaqina Intsimbi EngenaStainless
I-matrix yi-austenite okanye i-martensite, kwaye amabakala asetyenziswa ngokuqhelekileyo emvula eqinisa insimbi engenasici yi-04Cr13Ni8Mo2Al njalo njalo. Yinsimbi engenasici enokuthi iqiniswe (iqiniswe) ngokuqiniswa kwemvula (eyaziwa nangokuthi iminyaka yobudala).

Intsimbi ye-Martensitic
Amandla aphezulu, kodwa iplastiki ihlwempuzekile kunye ne-weldability. Amanqanaba asetyenziswa ngokuqhelekileyo ensimbi engenasici ye-martensitic yi-1Cr13, 3Cr13, njl., ngenxa yomxholo wekhabhoni ephezulu, inamandla amakhulu, ukuqina kunye nokumelana nokunxiba, kodwa ukuxhathisa kwe-corrosion kuncinci, kwaye isetyenziselwa iipropati eziphezulu zoomatshini kunye nokuxhathisa ukubola. Ezinye iindawo eziqhelekileyo ziyafuneka, ezifana nemithombo, iiblade ze-injini yomphunga, iivalvu ze-hydraulic press press, njl. Olu hlobo lwentsimbi lusetyenziswa emva kokucima kunye nokuvutha. Ukufakwa kwe-anealing kuyafuneka emva kokufogina kunye nesitampu.