Stainless steel hi a danglam bik a, a chhan chu kawng pawimawh pathum hmangin rust leh damage a do thei a ni. Protective passive layer a nei a, alloying elements chak tak tak a nei a, surface features bik a nei bawk. Passive layer hi chromium oxide a ni ber. He layer hian steel chu a khuh a, tui leh boruak a block bawk. He barrier hian rust chance a ti hniam a ni. Steel chu rei tak a nghet reng theih nan a pui a ni. Nickel leh molybdenum te hi alloying element an ni. An siam thin
stainless steel hi hmun khauh takah chuan a rei zawk. Surface smooth leh tihfai awlsam te hian a pui thin
stainless steel hian chhiatna a do thei. Heng features te hian a eng vawng reng thei turin a pui bawk.
Kan Company hian heng property te hi steel solution chak tak pe turin a hmang thin.
Passive layer hian corrosion a titawp thei a ni.
He layer hian tui leh boruak laka shield angin hna a thawk a ni.
Engtiang chiahin nge a thawh that tih chu enkawl dan leh a hmanna hmunah a innghat.
Key Takeaways te pawh a awm
Stainless steel hian tui leh boruak a chhuah loh nan special layer hmangin rust a titawp a ni.
Savun nem tak leh puan nem tak hmanga tihfai fo hian he layer hi a tichak a, rust a titawp bawk.
Nickel leh molybdenum hian stainless steel a tichak a, hmun harsa takah pawh rust dona kawngah a pui bawk.
Stainless steel grade dik tak thlan hi hna tin atan a pawimawh em em a, chuvangin rei tak a daih a, a thawk tha hle bawk.
Tui leh chemical hian steel chu awlsam takin a ti na thei lo a, chuvang chuan leilung hrual hian rust a titawp thei a ni.
Chromium & Passive Layer hmanga siam a ni
Stainless Steel & Chromium hmanga siam a ni
Chromium hian stainless steel hian rust a titawp thei a ni. Chromium chu steel nen a inhmeh chuan metal hnathawh dan a tidanglam thin. Stainless steel hian rust dona atan chromium 10.5% tal a mamawh a ni. A chi tam zawk chuan chromium an nei tam zawk. Chromium tam zawk hian steel hian chemical leh boruak avanga chhiatna a do theih nan a pui thin. Chromium 12% hnuai lam a tlak chuan steel hian a shield a hloh tihna a ni. Rust a intan thei a, chu metal chuan venhimna layer nghet tak a siam lo mai thei bawk.
Stainless steel hi stainless tia koh tur chuan chromium 10.5% tal a mamawh a ni.
Chromium tam zawk tih awmzia chu chemical leh boruak laka invenna tha zawk tihna a ni.
Chromium 12% aia tlem a nih chuan surface hian protective layer a hmu lo.
Chromium 12–15% hnuai lam hian thlai chi hrang hrang inkarah rust a siam thei.
Passive Film siam chhuah a ni
Stainless steel-a chromium hi boruak atanga oxygen nen an inrem a. Hei hian a chungah chromium oxide layer te tak te, chiang tak a siam a. Passive film hian shield ang maiin hna a thawk a. Tui, boruak leh thil tha lo dangte chuan thir a khawih loh nan a titawp a ni. He shield hian stainless steel hi rust dona kawngah a pui thin. Film hi engtiang chiahin nge a thick leh strong tih chu a awmna hmunah a innghat. Acid awm lohna hmunah chuan film chu a nghet reng a, steel chu a humhim bawk. Acid awmna hmunah chuan film chu a chak lo thei a, rust a intan thei bawk.
Passive film hian a hrual chuan a insiamtha thei a, chuvangin steel chu a him reng a ni.
Hriselna atana tihkhawtlai
Stainless steel-a passive layer hian hmun tam takah hna a thawk a. Mahse thil thenkhat chuan he phaw hi a tichhia thei a ni. Salt leh tuifinriat tuiah chloride ion te hian passive film chu a ti na thei a ni. Hei hian khur te te leh rust thuk zawk a siam thin. Base chak tak leh moisture tam tak hian shield a tichak lo bawk. Thli bawlhhlawh hian rust a ti rang thei hle. Shield a chhiat chuan steel chuan rust leh chhiatna do theihna a hloh ta a ni.
Chloride ion hian shield chu a ti chhe rang zawk thin.
Stainless steel tan chuan tui tam tak, chi leh boruak bawlhhlawh hi harsatna lian tak a ni.
Alloying Elements te pawh a awm
Nickel-a chanvo
Nickel hian stainless steel hian rust a do tha zawk a ni. Nickel kan dah chuan passive layer chak tak a siam thin. He layer hian metal chu rust leh chhiatna lakah a venghim a ni. Nickel hian khur te te pawh a lo awm loh nan a pui bawk. Heng khur te hi chemical chak tak atanga lo chhuak thei a ni. Nickel tlemte pawh, 3% ang chi hian a pui nasa hle. Nickel hian stainless steel chu hmun tam takah a nghet reng thei a ni. Steel rust chak zia a ti slow bawk. Hei hian surface active emaw passive emaw a nih chuan hna a thawk thin. Chuvangin stainless steel tam takah nickel hi a pawimawh hle.
Molybdenum atanga hlawkna a awm
Molybdenum hian stainless steel ah hian tanpuina dang a pe a ni. Salt emaw chloride emaw tamna hmunah chuan a tangkai hle. Molybdenum hian passive film chu a chhe lo turin a pui thin. Tin, metal chu a chhe chak zia a ti hniam bawk. Hun a kal zel a, molybdenum chu a chung lamah a lo pung zel a. Hei hian steel chu rust dona kawngah a ti tha zawk a ni. A hnuaia table-ah hian molybdenum hian eng nge a tih tih tarlan a ni:
Mechanism hmanga thil tih dan |
Hrilhfiahna |
Passive Film Breakdown laka invenna |
Molybdenum hian passive oxide films te a ti chhe thei lo a, chloride environment-a pitting laka invenna a tichak bawk. |
Active Metal Dissolution tihtlem |
Molybdenum hian localized corrosion laiin active metal dissolution rate a tihhniam a, repassivation-ah a pui a ni. |
Surface Enrichment tih hi a ni |
Molybdenum hian hun kal zelah surface enrichment a lantir a, hei hian corrosion resistance a ti tha zawk a ni. |
Nickel leh molybdenum te hi an inzawm khawm chuan stainless steel hi a daih rei zawk a ni. Hmun harsa takah pawh a chak reng theih nan an pui thin.
Corrosion laka inven theihna Grade hrang hrang
Stainless steel hi chi hrang hrang a awm a. Type tin hian a duh danin rust an do thin. A hnuaia table hian common grade pathum a khaikhin a:
Stainless Steel Grade hmanga siam a ni |
Corrosion laka inven theihna Level |
Thil pawimawh tak tak |
304 |
Thunun |
A hman tlangpui atan a tha a, aggressive acid leh chloride lakah a do tlem zawk |
316 |
Sang |
Pitting leh crevice corrosion laka invenna tha zawk, tuipui lama hmanna atana tha zawk |
316L |
A sang hle mai |
Corrosion resistance tihchak, chemical environment nasa tak neihna atana tha tak |
A chi dang, ferritic leh martensitic te hian hna bik an nei a. Ferritic stainless steel hi car trim leh ei tur hmanruaah te hman a ni. Martensitic type hi chem leh spring atan a tha hle. A hmanna tur hmun atan type dik tak i thlang tur a ni. Alloy tam zawk nei grade te chu a tir lamah chuan a man a to zawk mai thei. Mahse an daih rei zawk a, hmun harsa takah chuan fixing an mamawh tlem zawk.
Surface Properties te chu a ni
Surfaces Smooth tak tak te
Smooth surfaces hian stainless steel hian rust a do thei a ni. Steel chu a polih chuan a rough lo zawk. Hei hian tui emaw chemical emaw ang chi thilte chu a beih harsa zawk a ni. Pit leh crack tlem zawk chuan rust hian bul tanna tur hmun a nei tlem zawk tihna a ni. A smooth finish hian passive layer chu a insiamrem theih nan a pui thin. Stainless steel a finish tha tak chu tihfai a awlsam zawk. Bawlhhlawh emaw chemical emaw a trap nasa lutuk lo.
Finish smoother zawk hian pitting corrosion chance a ti hniam zawk.
Polished surface hian crevice corrosion hi rough aiin a do tha zawk.
Electropolished stainless steel hian passive film tha zawk a nei a.
A chunglam a hrual chuan stainless steel chu a eng reng thei a ni. Hmun harsa takah pawh rei zawk a awm theih nan a pui bawk.
Thianghlimna & Enkawlna
Stainless steel tihfai leh enkawl hian passive layer chu a him hle. Tifai fo hian bawlhhlawh leh thil tha lo a paih chhuak thin. Hei hian passive film chu a chak reng theih nan a pui a ni. Stainless steel tihfai nan hian sahbawn nem tak leh brush nem tak hmang ang che. Silfai zawhah tui thianghlim hmangin silfai tur a ni. Tui hnawih leh bawlhhlawh awmte tihtawp nan puan nem takin vawt rawh.
Nylon brush hmangin bawlhhlawh chu zawi zawiin scrub rawh.
Stainless steel atana him, sahbawn nem tak emaw, detergent emaw hmang rawh.
Tui thianghlim hmangin silfai ang che.
Puan nem tak hmangin vawt rawh.
Steel wool emaw chemical khauh tak tak emaw hmang suh. Carbon steel emaw iron emaw khawih chuan rust a thlen thei. Gloves fai bun hian kutziak leh chhinchhiahna te a titawp thin.
Faina hian stainless steel hi rust dona kawngah a pui fo thin. Tin, hmun harsaah pawh a rei zawk theih nan a pui bawk.
Taksa chhiatna laka invenna
Stainless steel hi a chak a, a khauh bawk. Bending lovin load rit tak tak a phur thei. A harsa a, mahse a chhe lo thei bawk. Hei hian dent emaw scratch emaw a ti harsa hle.
Thilneih |
Chhawr tangkai |
Tensile chakna sang tak a ni |
Pressure sang leh stress sang tak a handle |
Ductility a ni |
Bends mahse a chhe lo |
Hardness a ni |
Surface chhiatna leh wear a do thei |
Heng features te hian stainless steel hi hmun tha tak leh rust-resistant metal mamawhna hmunah a siam tha hle. A scratch emaw dented emaw a nih chuan awlsam takin i siam tha thei ang. Buffing emaw puan nem tak hman emaw hian a thar angin a lang leh thei.
Stainless steel hian kawng pawimawh pathum hmangin rust leh chhiatna a titawp a ni. Passive layer hian shield ang maiin hna a thawk a, a scratch chuan a fix thin. Alloying elements chromium, nickel, leh molybdenum te hian rust lakah a tichak zawk a ni. A chunglam hrual leh tihfai hian steel chu a eng leh a khauh reng theih nan a pui thin. A hnuaia table hian kawng tin hnathawh dan a tarlang a:
Mechanism hmanga thil tih dan |
Rust leh Damage laka Effectiveness |
Passive Layer a ni |
Rust block thei shield a siam a, carbon steel erawh chu a rust rang thung. |
Mahni Insiamthatna Mechanism |
Shield chu a hliam chuan a lo insiam leh a, chromium a awm chhung chuan. |
Environment lama thil thlengte |
Chi, acid leh lumna ang chi thilte hian rust a ti rang thei hle. |
Hmun tin tan stainless steel grade dik tak thlan hi a pawimawh hle. Rust do tha thei grade hi chemical, tui emaw chi emaw awmna hmunah a tha ber. Food factory-ah chuan ei tur nena inrem lo stainless steel an mamawh a ni. Chemical plant-te hian dinhmun khirh tak tak tuar thei tur grade an mamawh a ni. Grade dik lo i thlan chuan pitting, crevice, stress corrosion i nei thei.
Stainless steel hi a lum lai pawhin metal dang aiin a rust tlem zawk hle.
Stainless steel hi a daih rei a, enkawl a ngai tlem hle. Planet tan pawh a tha hle. A hnuaia table-ah hian heng point tha tak takte hi tarlan a ni:
Chhawr tangkai |
Hrilhfiahna |
Hun rei tak a daih thei |
Stainless steel building hi carbon steel building aiin a let hnih velin a rei zawk. |
Maintenance mamawh tlem zawk |
I siam that vak a ngai lo va, chuvangin hmun buai tak tan chuan a tha hle. |
Optimized weight a ni |
A chak em avangin thir i hmang tlem thei a, za zela 30 thlengin thil i ti rit thei bawk. |
Awm reng thei |
Stainless steel hi recycle theih a ni a, lei thianghlimna atan a pui bawk. |
Rules hian miten hna tin atan stainless steel grade dik tak an thlan theih nan a pui thin. Hei hian steel chu a thawk tha a, rei tak a daih thei bawk. Stainless steel hi a danglam bik a, a chhan chu rust a do a, a chak a, kum tam tak a daih bawk.
FAQ
Eng thilin nge stainless steel hi steel pangngai nen a danglamna?
Stainless steel ah hian chromium leh element dang a awm a. Chungte chuan rust block thei tur protective layer an siam a ni. Regular steel hian he shield hi a nei lo va, chuvangin a rust rang zawk.
Stainless steel hi hmun hnim emaw, hnim emaw hmunah a rust thei em?
Ni e, stainless steel hi hmun chi emaw, hnim emaw hmunah a rust thei. Tui chi (saltwater)-a chloride awmte hian a venna layer chu a tichhia thei a ni. Grade dik thlan hian he harsatna hi a veng thei a ni.
Engtin nge miten stainless steel hi a hmin loh nan an tihfai ang?
Mite chuan sahbawn nêm, tui, leh puan nêm tak an hmang tur a ni. Steel wool leh harsh cleaner te hi an hman loh tur a ni. Tifai fo hian venhimna layer chu a nghet reng a ni.
Engvangin nge stainless steel grade thenkhat chu a man a to zawk?
Nickel emaw molybdenum tam zawk nei grade te chu a man a to zawk. Heng elements te hian steel chu rust leh chhiatna lakah a tichak zawk a ni. Grade sang zawk hi hmun harsa takah chuan rei zawk an awm.
Stainless steel hi a hrual hnuah a bik taka enkawl a ngai em?
Awle. Scratches hian protective layer a tichak lo thei. Cleaning leh polishing hian layer chu a siam that theih nan a pui thin. Hei hian steel chu a tichak a, a eng bawk.
