Khoom siv

Inconel 600 yog ib qho tshwj xeeb nickel-chromium alloy uas paub txog nws cov oxidation tsis kam ntawm qhov kub siab dua. Nws muaj ntau yam thiab siv tau rau hauv txhua yam los ntawm cryogenics mus rau cov ntawv thov uas nthuav tawm qhov kub thiab txias mus txog 2000¡ãF (1093¡ãC).

Inconel Phaj muaj kev tiv thaiv zoo rau corrosion nrog rau siab zog txawm nyob rau hauv qhov kub thiab txias. Inconel Sheet muab nws cov khoom sib zog hardening ntawm nickel thiab chromium.

Piv nrog rau 316L, 317L steel muaj cov dej hiav txwv zoo thiab SCC tsis kam, thiab siv rau hauv cov nkoj tshuaj, cov khoom siv tshuaj Reactor thiab lwm yam khoom siv tshuaj uas yuav tsum tau muaj kev tiv thaiv corrosion.

Inconel 600 Phaj yog ib yam khoom uas muaj cov khoom tsis sib nqus. Lawv tiv taus corrosion xws li pitting thiab crevice. Ntxiv mus, cov Nickel Alloy 600 Sheets kuj muaj peev xwm ua kom sov lossis txias daim ntawv.

Stainless Hlau 904L Sheets, uas yog ib qho ntawm ntau qib stainless hlau uas tuaj yeem yuav ntawm peb lub tuam txhab.

6Mo super austenitic steel ua ke nrog lub zog tensile thiab siab ductility nrog corrosion kuj zoo nyob rau hauv seawater thiab ntau yam kev lag luam ib puag ncig.

Duplex 2507 (UNS S32750) yog ib qho super duplex stainless hlau nrog 25% chromium, 4% molybdenum, thiab 7% npib tsib xee tsim rau kev thov uas yuav tsum tau tshwj xeeb lub zog thiab corrosion kuj, xws li cov txheej txheem tshuaj, petrochemical, thiab seawater khoom.

1.4529 German tus lej code. Yog ib tug super duplex stainless hlau, lub ntsiab Cheebtsam: 20Cr-25Ni-6Mo-1Cu-0.2N sib raug rau lub tebchaws United States: N08926, 254SMo…

Stainless hlau 904L Sheet muaj lub zog tensile siab thiab toughness. Stainless hlau 904L Sheet muaj 28% nickel cov ntsiab lus, 23% chromium cov ntsiab lus, thiab 5% molybdenum cov ntsiab lus.

Stainless hlau 304 Sheet yog nyias txheej ntawm 304 cov khoom feem ntau mus txog 6 hli nyob rau hauv thickness. Cov ntawv tuaj nyob rau hauv qhov dav thiab ntev. Muaj cov qauv sib txawv los tswj cov khoom sib txawv. Roopam Steel yog cov chaw tsim khoom ntawm cov nplooj ntawv no hauv txhua qhov teev.

N04400 yog ib qho nickel-tooj ​​liab-raws li alloy uas muaj feem ntau ntawm ob feem peb ntawm npib tsib xee thiab ib feem peb tooj liab. Alloy N04400 paub txog nws cov kev tiv thaiv rau ntau yam corrosive tej yam kev mob, xws li alkalis (los yog acid-zoo li tshuaj), brine, hydrofluoric acid, thiab sulfuric acid. Lwm qhov zoo ntawm kev siv cov hlau no yog toughness thiab siab zog tshaj qhov kub thiab txias; nws kuj tuaj yeem raug kho kom sib nqus yog tias xav tau.

317L (00Cr19Ni13Mo3, UNS S31726) alloy yog molybdenum-based austenitic stainless hlau. Nws yog cov tshuaj tiv thaiv corrosion ntau dua li cov pa chromium-nickel austenitic stainless hlau xws li 304 alloy. Tsis tas li ntawd, piv nrog cov pa stainless hlau, 317L alloy muaj ntau dua ductility, kev nyuaj siab corrosion, compressive zog thiab kub tsis kam. Nws yog qib qis carbon lossis qib L, uas yog resistant rau rhiab heev thaum vuam thiab kho cua sov.
Hom 309 Stainless Hlau thiab 309S yog austenitic chromium-nickel stainless hlau uas muab kev tiv thaiv corrosion zoo heev thiab kub ua haujlwm ntxiv rau lub zog zoo ntawm chav tsev thiab siab kub.

904L (N08904, 14539) super austenitic stainless hlau muaj 14.0-18.0% chromium, 24.0-26.0% nickel, 4.5% molybdenum. 904L super austenitic stainless hlau yog cov pa roj carbon tsawg, high-nickel, molybdenum austenitic stainless acid-resistant steel, uas yog cov khoom siv los ntawm Fabkis H¡¤S Company. Nws muaj peev xwm ua kom zoo-passivation transformation muaj peev xwm, zoo heev corrosion kuj, zoo corrosion kuj nyob rau hauv non-oxidizing acids xws li sulfuric acid, acetic acid, formic acid, phosphoric acid, thiab zoo corrosion kuj nyob rau hauv nruab nrab chloride-muaj xov xwm zoo heev pitting corrosion kuj, raws li zoo raws li zoo crevice corrosion kuj thiab kev nyuaj siab corrosion kuj. Nws yog haum rau ntau yam ntawm sulfuric acid hauv qab 70 ° C, thiab muaj corrosion kuj zoo nyob rau hauv acetic acid ntawm tej concentration thiab kub nyob rau hauv ib txwm siab, nrog rau cov kua qaub sib xyaw ntawm formic acid thiab acetic acid.

Alloy 20 (Alloy 20) yog hlau-raws li austenitic alloy tsim los tiv thaiv sulfuric acid corrosion. Nws muaj kev tiv thaiv zoo heev rau sulfuric acid corrosion; nws muaj zog tiv taus phosphoric acid, nitric acid thiab chloride ib puag ncig, chloride kev nyuaj siab corrosion, pitting corrosion thiab tawg corrosion. Yog li ntawd, alloy 20 muaj lub npe ntawm anti-corrosion alloy; nws muaj ntau yam kev siv: xws li: tshuaj lom neeg, khoom noj khoom haus, tshuaj, kev tsim hluav taws xob thiab kev lag luam yas yuav siv tau. Rau kev tiv thaiv pitting corrosion thiab chloride corrosion, kev nyuaj siab corrosion cracking teeb meem, thiab lwm yam., alloy 20 feem ntau yog siv.

310S stainless hlau muaj qhov kub thiab txias tsis kam. Thaum qhov kub siab tshaj 800 [1], nws pib muag, thiab qhov kev cia siab tau pib txo qis tsis tu ncua. Qhov siab tshaj plaws ua haujlwm kub yog 1200 ºC. Vim yog cov ntsiab lus siab ntawm nickel (Ni) thiab chromium (Cr), nws muaj oxidation zoo, corrosion kuj, acid thiab alkali tsis kam, thiab kub tsis kam. Tom qab cov ntsiab lus, lub zog yog txhim kho vim nws cov khoom muaj zog ntxiv zog. Cov tshuaj lom neeg muaj pes tsawg leeg ntawm austenitic stainless hlau yog raws li chromium thiab npib tsib xee nrog cov ntsiab lus xws li molybdenum, tungsten, niobium thiab titanium ntxiv. Yog li ntawd, nws muaj lub zog siab thiab creep lub zog ntawm qhov kub thiab txias.

S31803 yog lub koom haum Numbering System (UNS) rau cov thawj duplex stainless hlau. Lub UNS system tau tsim los ntawm ntau pawg lag luam hauv xyoo 1970 los txo qhov tsis meej pem thaum tib lub alloy hu ua cov khoom sib txawv, thiab rov ua dua. Txhua hlau yog sawv cev los ntawm ib tsab ntawv ua raws li tsib tus lej, qhov twg tsab ntawv sawv cev rau cov hlau series, piv txwv li S rau stainless hlau.

Rau daim ntawv zeb daim ntaub ntawv yuav tsum tau qis alloy qib uas tsis muaj txaus corrosion kuj. Raws li 22% chromium cov ntsiab lus, lawv muaj kev sib xyaw ua ke austenitic: ferritic microstructure uas muab lub zog ntau dua, tiv thaiv corrosion thiab nqi-zoo.

UNS S31803 (ASTM F51) cov lus qhia tshwj xeeb tau hloov pauv ntau los ntawm UNS S32205 (1.4462, ASTM F60). Qhov no qhia txog lawv txoj kev xav kom ua kom lub zog ntawm cov hlau tsis muaj zog, ua tsaug rau txoj kev loj hlob ntawm AOD steelmaking txheej txheem, uas tso cai rau kev tswj nruj dua ntawm kev sib xyaw. Tsis tas li ntawd, nws tso cai rau cuam tshuam rau qib nitrogen ntxiv es tsis yog tam sim no raws li keeb kwm yav dhau los. Yog li ntawd, qhov ua tau zoo tshaj plaws duplex qib nrhiav kom cov ntsiab lus ntawm chromium (Cr), molybdenum (Mo) thiab nitrogen (N).

S32750 (2507) yog ib qho duplex stainless hlau uas sib txuas ntau yam zoo heev ntawm ferritic thiab austenitic steels. Vim nws cov ntsiab lus chromium thiab molybdenum siab, nws nthuav tawm zoo heev rau pitting, crevice thiab uniform corrosion. Qhov ob-theem microstructure xyuas kom meej tias cov hlau muaj kev tiv thaiv siab rau kev ntxhov siab corrosion thiab siab txhua yam muaj zog. Tsis tas li ntawd, nws kuj muaj cov yam ntxwv ntawm kev muaj zog tiv thaiv chloride pitting, siab thermal conductivity thiab qis thermal expansion coefficient.

S32205 yog duplex stainless hlau nrog ob zaug lub zog ntawm austenitic stainless hlau. Duplex stainless hlau muaj li ntawm 21% chromium, 2.5% molybdenum thiab 4.5% nickel-nitrogen alloy. Nws muaj lub zog siab, zoo cuam tshuam toughness thiab zoo tag nrho thiab hauv zos kev ntxhov siab corrosion kuj. Lub zog tawm los ntawm duplex stainless hlau yog ob zaug ntawm austenitic stainless hlau, ib qho tshwj xeeb uas tso cai rau cov neeg tsim khoom kom txo qhov hnyav thaum tsim cov khoom, ua rau cov hlau no pheej yig dua li 316, 317L. Qhov no alloy yog tshwj xeeb tshaj yog haum rau siv nyob rau hauv lub -50¡ãF/+600¡ãF kub ntau yam. Rau cov ntawv thov sab nraud qhov ntsuas kub no, cov hlau no kuj tuaj yeem txiav txim siab, tab sis muaj qee qhov kev txwv, tshwj xeeb tshaj yog thaum siv rau cov qauv welded. Duplex stainless hlau muaj ob zaug lub zog compressive piv rau austenitic stainless hlau, thiab cov neeg tsim khoom tuaj yeem txo nws qhov hnyav piv rau 316L thiab 317L. Alloy 2205 yog tshwj xeeb tshaj yog haum rau siv nyob rau hauv lub -50¡ãF\/+600¡ãF kub ntau, thiab kuj yuav siv tau nyob rau hauv qis kub nyob rau hauv cov kev txwv hnyav (tshwj xeeb tshaj yog rau welded lug).

S32750 (2507) yog ib qho duplex stainless hlau uas sib txuas ntau yam zoo heev ntawm ferritic thiab austenitic steels. Vim nws cov ntsiab lus chromium thiab molybdenum siab, nws nthuav tawm zoo heev rau pitting, crevice thiab uniform corrosion. Qhov ob-theem microstructure xyuas kom meej tias cov hlau muaj kev tiv thaiv siab rau kev ntxhov siab corrosion thiab siab txhua yam muaj zog. Tsis tas li ntawd, nws kuj muaj cov yam ntxwv ntawm kev muaj zog tiv thaiv chloride pitting, siab thermal conductivity thiab qis thermal expansion coefficient.

HastelloyC-276 (Hastelloy) yog tungsten-nickel-chromium-molybdenum alloy nrog cov ntsiab lus tsis tshua muaj silicon-carbon thiab suav tias yog ib puag ncig corrosion-resistant aluminium alloy. Qhov tseem ceeb ntawm cov tshuaj tiv thaiv dej noo, ntau yam huab cua-oxidizing fluorides, isopropyl titanate daws, hydrochloric acid thiab huab cua-oxidizing ntsev, muaj corrosion kuj zoo nyob rau hauv ultra-low kub thiab sawv kub sulfuric acid. Yog li ntawd, nyob rau hauv 30 xyoo dhau los, nws tau lug siv nyob rau hauv tsis tshua muaj corrosive ntuj ib puag ncig xws li tshuaj nroj tsuag, petrochemicals, flue gas desulfurization, pulp thiab ntawv kev lag luam, thiab kev tiv thaiv ib puag ncig.

Corrosion kuj

Lub aluminium alloy muaj cov yam ntxwv hauv qab no: 1. Nws muaj kev tiv thaiv corrosion zoo rau feem ntau cov khoom corrosive nyob rau hauv ob qho kev mob ntawm huab cua oxidation thiab kho. ¢ Ú Nws muaj kev tiv thaiv zoo rau pitting corrosion, void corrosion thiab intergranular corrosion. Cov ntsiab lus siab dua ntawm Mo thiab Cr ua rau aluminium alloy tiv taus corrosion los ntawm cov ntsiab lus chloride ion, thiab W lub ntsiab lus ntxiv txhim kho corrosion kuj. Nyob rau tib lub sijhawm, Hastelloy C-276 aluminium alloy yog ib qho ntawm cov khoom siv raw uas tiv taus cov chlorine ntub dej, hypochlorite thiab chlorine dioxide saturated daws. Ester kua muaj qhov pom tseeb corrosion kuj. Nws yog ib qho ntawm ob peb cov ntaub ntawv raw uas tuaj yeem siv los ua cov tshuaj kub sulfuric acid saturated.

S32205 yog duplex stainless hlau nrog ob zaug lub zog ntawm austenitic stainless hlau. Duplex stainless hlau muaj li ntawm 21% chromium, 2.5% molybdenum thiab 4.5% nickel-nitrogen alloy. Nws muaj lub zog siab, zoo cuam tshuam toughness thiab zoo tag nrho thiab hauv zos kev ntxhov siab corrosion kuj. Lub zog tawm los ntawm duplex stainless hlau yog ob zaug ntawm austenitic stainless hlau, ib qho tshwj xeeb uas tso cai rau cov neeg tsim khoom kom txo qhov hnyav thaum tsim cov khoom, ua rau cov hlau no pheej yig dua li 316, 317L. Qhov no alloy yog tshwj xeeb tshaj yog haum rau siv nyob rau hauv lub -50¡ãF/+600¡ãF kub ntau yam. Rau cov ntawv thov sab nraud qhov ntsuas kub no, cov hlau no kuj tuaj yeem txiav txim siab, tab sis muaj qee qhov kev txwv, tshwj xeeb tshaj yog thaum siv rau cov qauv welded. Duplex stainless hlau muaj ob zaug lub zog compressive piv rau austenitic stainless hlau, thiab cov neeg tsim khoom tuaj yeem txo nws qhov hnyav piv rau 316L thiab 317L. Alloy 2205 yog tshwj xeeb tshaj yog haum rau siv nyob rau hauv lub -50¡ãF\/+600¡ãF kub ntau, thiab kuj yuav siv tau nyob rau hauv qis kub nyob rau hauv cov kev txwv hnyav (tshwj xeeb tshaj yog rau welded lug).

Inconel yog tsim los ntawm nickel thiab chromium ua lub hauv paus ntsiab lus. Inconel 625 Phaj yog corrosion resistant thiab siab zog alloy. Nws yog non-magnetic alloy.
1.4529 (UNS N08926) muaj kev tiv thaiv siab heev rau pitting thiab crevice corrosion nyob rau hauv halide media thiab nyob rau hauv acidic ib puag ncig uas muaj sulfur thiab hydrogen
Nws tuaj yeem tiv taus cov tshuaj chloride ion kev nyuaj siab corrosion, thiab kuj muaj kev tiv thaiv corrosion thiab zoo stability hauv oxidizing thiab txo cov xov xwm.
Cov khoom siv kho tshuab me ntsis zoo dua li 904L, thiab nws tuaj yeem siv rau hauv kev tsim cov hlab ntsha siab ntawm -196 txog 400 ºC.

904L (N08904, 14539) super austenitic stainless hlau muaj 14.0-18.0% chromium, 24.0-26.0% nickel, 4.5% molybdenum. 904L super austenitic stainless hlau yog cov pa roj carbon tsawg, high-nickel, molybdenum austenitic stainless acid-resistant steel, uas yog cov khoom siv los ntawm Fabkis H¡¤S Company. Nws muaj peev xwm ua kom zoo-passivation transformation muaj peev xwm, zoo heev corrosion kuj, zoo corrosion kuj nyob rau hauv non-oxidizing acids xws li sulfuric acid, acetic acid, formic acid, phosphoric acid, thiab zoo corrosion kuj nyob rau hauv nruab nrab chloride-muaj xov xwm zoo heev pitting corrosion kuj, raws li zoo raws li zoo crevice corrosion kuj thiab kev nyuaj siab corrosion kuj. Nws yog haum rau ntau yam ntawm sulfuric acid hauv qab 70 ° C, thiab muaj corrosion kuj zoo nyob rau hauv acetic acid ntawm tej concentration thiab kub nyob rau hauv ib txwm siab, nrog rau cov kua qaub sib xyaw ntawm formic acid thiab acetic acid.

S31803 yog lub koom haum Numbering System (UNS) rau cov thawj duplex stainless hlau. Lub UNS system tau tsim los ntawm ntau pawg lag luam hauv xyoo 1970 los txo qhov tsis meej pem thaum tib lub alloy hu ua cov khoom sib txawv, thiab rov ua dua. Txhua hlau yog sawv cev los ntawm ib tsab ntawv ua raws li tsib tus lej, qhov twg tsab ntawv sawv cev rau cov hlau series, piv txwv li S rau stainless hlau.

Rau daim ntawv zeb daim ntaub ntawv yuav tsum tau qis alloy qib uas tsis muaj txaus corrosion kuj. Raws li 22% chromium cov ntsiab lus, lawv muaj kev sib xyaw ua ke austenitic: ferritic microstructure uas muab lub zog ntau dua, tiv thaiv corrosion thiab nqi-zoo.

UNS S31803 (ASTM F51) cov lus qhia tshwj xeeb tau hloov pauv ntau los ntawm UNS S32205 (1.4462, ASTM F60). Qhov no qhia txog lawv txoj kev xav kom ua kom lub zog ntawm cov hlau tsis muaj zog, ua tsaug rau txoj kev loj hlob ntawm AOD steelmaking txheej txheem, uas tso cai rau kev tswj nruj dua ntawm kev sib xyaw. Tsis tas li ntawd, nws tso cai rau cuam tshuam rau qib nitrogen ntxiv es tsis yog tam sim no raws li keeb kwm yav dhau los. Yog li ntawd, qhov ua tau zoo tshaj plaws duplex qib nrhiav kom cov ntsiab lus ntawm chromium (Cr), molybdenum (Mo) thiab nitrogen (N).

S31803 yog lub koom haum Numbering System (UNS) rau cov thawj duplex stainless hlau. Lub UNS system tau tsim los ntawm ntau pawg lag luam hauv xyoo 1970 los txo qhov tsis meej pem thaum tib lub alloy hu ua cov khoom sib txawv, thiab rov ua dua. Txhua hlau yog sawv cev los ntawm ib tsab ntawv ua raws li tsib tus lej, qhov twg tsab ntawv sawv cev rau cov hlau series, piv txwv li S rau stainless hlau.

Rau daim ntawv zeb daim ntaub ntawv yuav tsum tau qis alloy qib uas tsis muaj txaus corrosion kuj. Raws li 22% chromium cov ntsiab lus, lawv muaj kev sib xyaw ua ke austenitic: ferritic microstructure uas muab lub zog ntau dua, tiv thaiv corrosion thiab nqi-zoo.

UNS S31803 (ASTM F51) cov lus qhia tshwj xeeb tau hloov pauv ntau los ntawm UNS S32205 (1.4462, ASTM F60). Qhov no qhia txog lawv txoj kev xav kom ua kom lub zog ntawm cov hlau tsis muaj zog, ua tsaug rau txoj kev loj hlob ntawm AOD steelmaking txheej txheem, uas tso cai rau kev tswj nruj dua ntawm kev sib xyaw. Tsis tas li ntawd, nws tso cai rau cuam tshuam rau qib nitrogen ntxiv es tsis yog tam sim no raws li keeb kwm yav dhau los. Yog li ntawd, qhov ua tau zoo tshaj plaws duplex qib nrhiav kom cov ntsiab lus ntawm chromium (Cr), molybdenum (Mo) thiab nitrogen (N).

904L (N08904, 14539) super austenitic stainless hlau muaj 14.0-18.0% chromium, 24.0-26.0% nickel, 4.5% molybdenum. 904L super austenitic stainless hlau yog cov pa roj carbon tsawg, high-nickel, molybdenum austenitic stainless acid-resistant steel, uas yog cov khoom siv los ntawm Fabkis H¡¤S Company. Nws muaj peev xwm ua kom zoo-passivation transformation muaj peev xwm, zoo heev corrosion kuj, zoo corrosion kuj nyob rau hauv non-oxidizing acids xws li sulfuric acid, acetic acid, formic acid, phosphoric acid, thiab zoo corrosion kuj nyob rau hauv nruab nrab chloride-muaj xov xwm zoo heev pitting corrosion kuj, raws li zoo raws li zoo crevice corrosion kuj thiab kev nyuaj siab corrosion kuj. Nws yog haum rau ntau yam ntawm sulfuric acid hauv qab 70 ° C, thiab muaj corrosion kuj zoo nyob rau hauv acetic acid ntawm tej concentration thiab kub nyob rau hauv ib txwm siab, nrog rau cov kua qaub sib xyaw ntawm formic acid thiab acetic acid.

UNS S31254 yog cov khoom siv hlau uas muaj cov nyhuv anti-corrosion, nws qhov ntom yog 8.0g\ / cm3, thiab cov ntsiab lus melting yog 1320-1390¡æ. Cov ntsiab lus molybdenum siab thiab siab chromium thiab nitrogen cov ntsiab lus ua rau UNSS31254 tsis tshua muaj zog tiv thaiv pitting thiab crevice corrosion. Qhov sib ntxiv ntawm tooj liab txhim kho corrosion kuj nyob rau hauv tej yam acids. Tsis tas li ntawd, UNSS31254 muaj kev tiv thaiv zoo rau kev ntxhov siab corrosion tawg vim nws cov ntsiab lus siab nickel thiab siab chromium thiab molybdenum cov ntsiab lus.

Alloy 32750 yog ib qho super duplex stainless hlau nkag rau hauv kub ua haujlwm thiab kev daws teeb meem annealed. Raws li ib tug super duplex stainless hlau, nws combines lub ntshaw yam ntawm austenitic thiab ferritic steels. Siab chromium, molybdenum thiab nitrogen cov ntsiab lus ua rau Pitting Resistance Equivalent Number (PREN) > 40, muab superior pitting thiab crevice corrosion muaj peev xwm rau austenitic thiab duplex stainless hlau nyob rau hauv yuav luag txhua corrosive media, thiab tseem ceeb pitting kub tshaj 50¡ãC.

S31803 yog lub koom haum Numbering System (UNS) rau cov thawj duplex stainless hlau. Lub UNS system tau tsim los ntawm ntau pawg lag luam hauv xyoo 1970 los txo qhov tsis meej pem thaum tib lub alloy hu ua cov khoom sib txawv, thiab rov ua dua. Txhua hlau yog sawv cev los ntawm ib tsab ntawv ua raws li tsib tus lej, qhov twg tsab ntawv sawv cev rau cov hlau series, piv txwv li S rau stainless hlau.

Rau daim ntawv zeb daim ntaub ntawv yuav tsum tau qis alloy qib uas tsis muaj txaus corrosion kuj. Raws li 22% chromium cov ntsiab lus, lawv muaj kev sib xyaw ua ke austenitic: ferritic microstructure uas muab lub zog ntau dua, tiv thaiv corrosion thiab nqi-zoo.

UNS S31803 (ASTM F51) cov lus qhia tshwj xeeb tau hloov pauv ntau los ntawm UNS S32205 (1.4462, ASTM F60). Qhov no qhia txog lawv txoj kev xav kom ua kom lub zog ntawm cov hlau tsis muaj zog, ua tsaug rau txoj kev loj hlob ntawm AOD steelmaking txheej txheem, uas tso cai rau kev tswj nruj dua ntawm kev sib xyaw. Tsis tas li ntawd, nws tso cai rau cuam tshuam rau qib nitrogen ntxiv es tsis yog tam sim no raws li keeb kwm yav dhau los. Yog li ntawd, qhov ua tau zoo tshaj plaws duplex qib nrhiav kom cov ntsiab lus ntawm chromium (Cr), molybdenum (Mo) thiab nitrogen (N).

317L (00Cr19Ni13Mo3, UNS S31726) alloy yog molybdenum-based austenitic stainless hlau. Nws yog cov tshuaj tiv thaiv corrosion ntau dua li cov pa chromium-nickel austenitic stainless hlau xws li 304 alloy. Tsis tas li ntawd, piv nrog cov pa stainless hlau, 317L alloy muaj ntau dua ductility, kev nyuaj siab corrosion, compressive zog thiab kub tsis kam. Nws yog qib qis carbon lossis qib L, uas yog resistant rau rhiab heev thaum vuam thiab kho cua sov.
Hom 309 Stainless Hlau thiab 309S yog austenitic chromium-nickel stainless hlau uas muab kev tiv thaiv corrosion zoo heev thiab kub ua haujlwm ntxiv rau lub zog zoo ntawm chav tsev thiab siab kub.