Bɔku tɛm, pipul dɛn kin tink da we dedi valvna stenlɛs stiɛl ɛn i nɔ go rɔsti. If i du dat, i kin bi prɔblɛm wit di stɛl. Dis na wan-sayd mistek bɔt di nɔ ɔndastandin bɔt stenlɛs stiɛl, we kin rɔst bak ɔnda sɔm kɔndishɔn dɛn.
Stenlɛs stiɛl gɛt di abiliti fɔ mek di atmosfɛrik ɔksidɛshɔn nɔ apin—dat na, i nɔ de rɔst, ɛn i gɛt bak di abiliti fɔ kɔrɛkt insay midia we gɛt asid, alkali, ɛn sɔl—dat na, i nɔ de mek i nɔ rɔtin. Bɔt di sayz fɔ in anti-kɔrɛshɔn abiliti kin chenj wit di kemikal kɔmpɔzishɔn fɔ in stɛl insɛf, di stet fɔ protɛkshɔn, di kɔndishɔn fɔ yuz ɛn di kayn envayrɔmɛnt midia.
Bɔku tɛm, dɛn kin sheb stenlɛs stiɛl to:
Bɔku tɛm, akɔdin to di mɛtalografik strɔkchɔ, dɛn kin sheb ɔdinari stenlɛs stiɛl to tri kategori: ɔstenitik stenlɛs stiɛl, fɛriti stenlɛs stiɛl, ɛn matɛnsitik stenlɛs stiɛl. Na di besis fɔ dɛn tri besik mɛtalografik strɔkchɔ ya, fɔ spɛshal nid ɛn pɔpɔshɔn dɛn, dɛn kin pul tu-faz stɛl dɛn, prɛsipitashɔn-hadɛn stenlɛs stiɛl dɛn ɛn ay-alɔy stɛl dɛn we gɛt ayɛn kɔntinyu we nɔ rich 50%.
1. Ɔstenitik stenlɛs stiɛl.
Di matris de dominet bay austenite strɔkchɔ (CY faz) we gɛt fes-sɛntrɛd kubik kristal strɔkchɔ, we nɔto magnɛtik, ɛn i men wan de strɔng bay kol wok (ɛn i kin mek sɔm magnɛtik prɔpati dɛn) stenlɛs stiɛl. Dɛn kin pik di American Iron and Steel Institute bay di nɔmba dɛn we de na di 200 ɛn 300 siriɔs, lɛk 304.
2. Fɛritik stenlɛs stiɛl.
Di matris na di fεrayt strכkchכ ((wan fεz) fכ di bכdi-sεntrεd kubik kristכl strכkchכ, we na magnεtik εn jεnarali nכ kin at bay hεt tritmεnt, bכt i kin strכng sכmtεm bay kol wok.Di American Iron and Steel Institute dεn mak wit 430 εn 446.
3. Martensitik stenlɛs stiɛl.
di matris na matεnsitik strכkchכ (bכdi-sεntrεd kubik כ kubik), magnεtik, εn in mεkanikal prכpati dεm kin ajɔst bay hεt tritmεnt. Di American Iron and Steel Institute na di nɔmba 410, 420 ɛn 440. Matensayt gɛt ɔstɛnayt strɔkchɔ we i gɛt ay tɛmpracha, ɛn we dɛn kol am to rum tɛmpracha pan di rayt rit, di ɔstɛnayt strɔkchɔ kin chenj to matensayt (dat na, i dɔn at).
4. Ɔstenitik-fɛritik (dupleks) stenlɛs stiɛl.
di matris gεt כl tu di כsteniyt εn fεrayt tu-fεz strכkchכ, εn di kכntεnt fכ di lεs-fεz matris jεnarali pas 15%. I gɛt magnɛtik ɛn i kin mek i strɔng if i wok kol. 329 na wan tipik dupleks stenlɛs stiɛl. We yu kɔmpia am wit ɔstenitik stenlɛs stiɛl, dual-faz stɛl gɛt ay trɛnk, ɛn di rɛsistɛns to intagranular kɔrɛshɔn ɛn klorayd strɛs kɔrɛshɔn ɛn pitting kɔrɛshɔn dɔn rili impɔtant.
5. Prɛsipitashɔn hardening stenlɛs stiɛl.
Di matris na ɔstɛnayt ɔ matɛnsitik strɔkchɔ ɛn i kin at bay prɛsipitashɔn hardening. Di American Iron and Steel Institute gɛt mak wit 600 siriɔs nɔmba, lɛk 630, we na 17-4PH.
Jɛnɛral wan, apat frɔm alɔy, di kɔrɛshɔn rɛsistɛns fɔ ɔstenitik stenlɛs stiɛl rili fayn. Insay say we nɔ de rɔtin, dɛn kin yuz fɛriti stenlɛs stiɛl. Insay wan mildly corrosive envayrɔmɛnt, if di matirial nid fɔ gɛt ay Fɔ trɛnk ɔ ay hadnɛs, martensitic stenlɛs stiɛl ɛn prɛsipitashɔn hardening stenlɛs stiɛl kin yuz.
Kɔmɔn stenlɛs stiɛl gred ɛn prɔpati dɛn
01 304 Stenlɛs Stiɛl
Na wan pan di ɔstenitik stenlɛs stiɛl dɛn we dɛn kin yuz ɛn we dɛn kin yuz bɔku bɔku wan. I fayn fɔ mek dip-drɔ pat ɛn asid paip layn, kɔntena, strɔkchɔ pat, difrɛn inschrumɛnt bɔdi, ɛn ɔda tin dɛn.Dɛn kin yuz am bak fɔ mek nɔ-magnɛtik, lɔw tɛmpracha ikwipmɛnt ɛn pat.
02 304L Stainlɛs Stiɛl
Fɔ mek dɛn ebul fɔ sɔlv di prɔblɛm we di ɔlta-lɔ kabɔn ɔstenitik stenlɛs stiɛl we dɛn dɔn divɛlɔp bikɔs ɔf di prɛsipitashɔn fɔ Cr23C6 we de mek siriɔs intagranular kɔrɛshɔn tɛndens fɔ 304 stenlɛs stiɛl ɔnda sɔm kɔndishɔn dɛn, in sɛnsitiv stet intagranular kɔrɛshɔn rɛsistɛns rili bɛtɛ pas di wan fɔ 304 stenlɛs stiɛl. Apat frɔm di trɛnk we smɔl smɔl, ɔda prɔpati dɛn na di sem lɛk 321 stenlɛs stiɛl. Dɛn kin yuz am mɔ fɔ ikwipmɛnt ɛn kɔmpɔnɛnt dɛn we nɔ de mek kɔrɛshɔn we dɛn nɔ kin ebul fɔ du sɔlvushɔn tritmɛnt afta dɛn dɔn wɛl, ɛn dɛn kin yuz am fɔ mek difrɛn inschrumɛnt bɔdi dɛn.
03 304H Stainlɛs Stiɛl
Di intanɛnt branch fɔ 304 stenlɛs stiɛl gɛt kabɔn mas frakshɔn we na 0.04%-0.10%, ɛn in ay tɛmpracha pefɔmɛns bɛtɛ pas di wan fɔ 304 stenlɛs stiɛl.
04 316 Stenlɛs Stiɛl
We yu ad molibdɛnum pan di bies fɔ 10Cr18Ni12 stɛl de mek di stɛl gɛt gud rɛsistɛns fɔ ridyus midul ɛn pitting kɔrɛshɔn. Insay si wata ɛn difrɛn ɔda tin dɛn, di kɔrɛshɔn rɛsistɛns bɛtɛ pas 304 stenlɛs stiɛl, we dɛn kin yuz mɔ fɔ mek tin dɛn we nɔ de mek pit.
05 316L Stainlɛs Stiɛl
Ultra-lɔ kabɔn stɛl gɛt gud rɛsistɛns to sɛnsitiz intagranular kɔrɛshɔn ɛn i fayn fɔ mek weld pat ɛn ikwipmɛnt wit tik sɛkshɔn dimɛnshɔn, lɛk kɔrɛshɔn-rɛsistɛns matirial dɛn na petrokɛmik ikwipmɛnt.
06 316H Stainlɛs Stiɛl
Di intanɛnt branch fɔ 316 stenlɛs stiɛl gɛt kabɔn mas frakshɔn we na 0.04%-0.10%, ɛn in ay tɛmpracha pefɔmɛns bɛtɛ pas di wan fɔ 316 stenlɛs stiɛl.
07 317 Stenlɛs Stiɛl
Di pit kɔrɛshɔn rɛsistɛns ɛn krip rɛsistɛns bɛtɛ pas 316L stenlɛs stiɛl, we dɛn kin yuz fɔ mek petrokɛmikɛl ɛn ɔrganik asid kɔrɛshɔn rɛsistɛns ikwipmɛnt.
08 321 Stenlɛs Stiɛl
Titanium-stabilized austenitic stainless steel, ad taytanium fɔ impɔtant intagranular kɔrɛshɔn rɛsistɛns, ɛn gɛt gud ay-tɛmpracha mɛkanikal prɔpati, dɛn kin riples am wit ɔlta-lɔ kabɔn ɔstenitik stenlɛs stiɛl. Eksept fɔ spɛshal tɛm dɛn lɛk ay tɛmpracha ɔ haydrojɛn kɔrɛshɔn rɛsistɛns, jɔs lɛk aw dɛn nɔ kin fayn fɔ yuz am.
09 347 Stenlɛs Stiɛl
Niobium-stabilized austenitic stainless steel, ad niobium fɔ impɔtant intagranular kɔrɛshɔn rɛsistɛns, di kɔrɛshɔn rɛsistɛns insay asid, alkali, sɔl ɛn ɔda kɔrɛshɔn midia na di sem lɛk 321 stenlɛs stiɛl, gud wɛldin pefɔmɛns, dɛn kin yuz am as kɔrɛshɔn-rɛsistant matirial ɛn anti-kɔrɛshɔn Dɛn kin yuz ɔt stiɛl mɔ na tɛmal pawa ɛn petrokɛmikal fil dɛm, lɛk fɔ mek kɔntena, paip, ɔt ɛkschenja, shaft, ɔfna tyub dɛn na industrial ɔfna, ɛn ɔfna tyub tɛmɔmɔta.
10 904L Stainlɛs Stiɛl
Supa komplit ɔstenitik stenlɛs stiɛl na wan kayn supa ɔstenitik stenlɛs stiɛl we OUTOKUMPU na Finland invent. , I gɛt gud kɔrɛshɔn rɛsistɛns insay asid dɛn we nɔ de ɔksidayz lɛk sɔlfɔrik asid, asɛtik asid, fɔmik asid ɛn fɔsfɔrik asid, ɛn i gɛt gud rɛsistɛns bak to krevis kɔrɛshɔn ɛn strɛs kɔrɛshɔn rɛsistɛns. I fayn fɔ difrɛn kɔnsɛntreshɔn dɛn fɔ sɔlfɔrik asid we de dɔŋ 70°C, ɛn i gɛt gud kɔrɛshɔn rɛsistɛns insay asɛtik asid ɛn miks asid fɔ fɔmik asid ɛn asɛtik asid pan ɛni kɔnsɛntreshɔn ɛn tɛmpracha ɔnda nɔmal prɛshɔn.
11 440C stenlɛs stiɛl
Martensitic stenlɛs stiɛl gɛt di ays hadnɛs bitwin stenlɛs stiɛl dɛn we dɛn kin at ɛn stenlɛs stiɛl dɛn, wit wan hadnɛs we na HRC57. Dɛn kin yuz am mɔ fɔ mek noz, bia, .bɔtaflayvalv kɔr dɛn, .bɔtaflayvalv sidɔm ples, sliv, .valv stem, ɛn ɔda tin dɛn.
12 17-4PH stenlɛs stiɛl
Martensitik prɛsipitashɔn hardening stenlɛs stiɛl wit wan hadnɛs fɔ HRC44 gɛt ay trɛnk, hadnɛs ɛn kɔrɛshɔn rɛsistɛns ɛn dɛn nɔ kin yuz am na tɛmpracha we pas 300°C. I gɛt gud kɔrɛshɔn rɛsistɛns to di atmosfɛs ɛn diluted asid ɔ sɔl. Di we aw i nɔ de rɔtin na di sem tin we 304 stenlɛs stiɛl ɛn 430 stenlɛs stiɛl gɛt. Dɛn kin yuz am fɔ mek ɔfsho pletfɔm, tɔbayn bled, .bɔtaflayvalv (valv kor, valv sit, sliv, valv stem) wait.
In valv dizayn ɛn sɛlɛkshɔn, difrɛn sistɛm dɛn, siriɔs, ɛn gred dɛn fɔ stenlɛs stiɛl dɛn kin mit bɔku tɛm. We yu de pik, yu fɔ tink bɔt di prɔblɛm frɔm bɔku we dɛn lɛk spɛshal prɔses mɛdiɔm, tɛmpracha, prɛshɔn, pat dɛn we strɛs, kɔrɛshɔn, ɛn kɔst.
Di tɛm fɔ post: Jul-20-2022
