He aha ka ʻokoʻa ma waena o SS 329 a me SS316?

He Hoʻohālikelike Kikoʻī e SAKYSTEEL

He mea nui nā kila kila i nā ʻoihana hou, mai nā hale hana kemika a me ke kūkulu moku a hiki i nā ʻōnaehana aila a me ke kinoea. Ma waena o nā papa he nui i loaʻa,SS 316a meSS 329ʻelua mau mea i hoʻohana pinepine ʻia e hoʻoulu pinepine ai i ka huikau ma waena o nā mea kūʻai a me nā ʻenekinia. Ua kaulana lāua ʻelua no ko lāua maikaʻi loake kūpaʻa ʻana i ka palaho, akā naʻe, ʻokoʻa nui lākou iʻano micro, nā waiwai mechanical, a me ka hana.

ʻO kēia ʻatikala, i hoʻomākaukau ʻia eSAKYSTEEL, he mea hoʻolako kila kila honua, wehewehe kikoʻī i kaka ʻokoʻa ma waena o SS 329 a me SS316, e uhi ana i kā lākou ʻano kemika, ke kūpaʻa i ka pala, ka ikaika, a me nā noi kūpono. ʻO ka hoʻomaopopo ʻana i kēia mau ʻokoʻa e kōkua i nā ʻenekinia a me nā loea kūʻai e koho i nā mea kūpono no nā wahi hana kikoʻī.

1. ʻIkepili o ke kila kila SS316

SS316, ʻike ʻia hoʻi ʻoʻAISI 316 or UNS S31600, hekila kila austeniticHe ʻāpana ia o ka ʻohana 300-series a hoʻohana nui ʻia ma muli o konakūpaʻa maikaʻi loa i ka palaho, maikaʻi ke ʻano hana, a meka maʻalahi o ka hoʻopili ʻana.

ʻO ka mea wehewehe o SS316molibdenum (2–3%), kahi e hoʻomaikaʻi ai i ke kū'ē ʻana ika pala o ka lua a me ka ʻōpala crevice, ʻoi aku hoʻi i nā wahi i loaʻa ka chloride e like me ka wai kai. Ua kapa pinepine ʻia ʻo SS316 "kila kila pae moana," ʻoiai ʻo kona kūpaʻa ʻana i ka wai paʻakai he kaulike ia i ka hoʻohālikelike ʻia me nā ʻano duplex.

ʻAʻole ia he magnetic i ke kūlana annealed a mālama i ka paʻakikī ʻoiai ma nā mahana cryogenic, e lilo ia i mea hana maʻalahi a hilinaʻi hoʻi no nā ʻoihana kemika, meaʻai, a me nā ʻoihana kai.

2. ʻIkepili o ke kila kila SS329

SS329, a i ʻoleUNS S32900, hekila kila ʻelua, ʻo ia hoʻi, aia i loko kahi hui kaulike oaustenite (γ)a meferrite (α)nā pae. Hāʻawi kēia ʻano hana pālua-pae iā SS329 i kahi hui kū hoʻokahi oikaika kiʻekiʻea mekūpaʻa maikaʻi loa i ka palaho, ʻoi aku hoʻi e kūʻē ika haki ʻana o ka palaho koʻikoʻi chloride (SCC).

Me ke chromium kiʻekiʻe aʻe (≈25%) a me ka nickel haʻahaʻa (≈4%) ​​i hoʻohālikelike ʻia me SS316, hiki i ka SS329 ke hana i nā wahi kahi e hāʻule ai paha nā kila kila austenitic maʻamau e like me 316L.

Hoʻohana nui ʻia ia manā kahua kai, nā hale hana desalination, nā mea hoʻololi wela, a me nā paipu kaomi kiʻekiʻe, kahi e koʻikoʻi ai ka ikaika mechanical a me ka hana corrosion.

3. Nā ʻokoʻa o ka hoʻohuihui kemika

Ho'ākāka ke kaulike kemika i ka hana a kēlā me kēia kila. Aia ma lalo kahi wehewehe maʻalahi (me ka ʻole o kahi papa, e like me ka noi):

  • Hoʻohuihui SS316:16–18% Chromium, 10–14% Nickel, 2–3% Molybdenum, me nā ʻāpana liʻiliʻi o Manganese, Silicon, a me Carbon (<0.08%).

  • Hoʻohuihui SS329:23–28% Chromium, 2.5–5% Nickel, a hiki i ka 1.5% Molybdenum, a me kahi koena o ka Naikokene e hoʻopaʻa i ka ʻano duplex.

Nā Manaʻo Koʻikoʻi:

  • Loaʻa iā SS329ʻoi aku ka nui o ka chromiuma meemi ka nikela, e hāʻawi ana iā ia i ka palekana i ka pala a me ka ikaika hua kiʻekiʻe.

  • ʻOi aku ka nui o ka SS316, me kona nickel a me ka molybdenum kiʻekiʻeductile a hiki ke hoʻokumu ʻia, kūpono no nā ʻano paʻakikī a me nā hoʻopau i wili ʻia.

4. Hoʻohālikelike ʻana i ka Microstructure

ʻO ka ʻokoʻa nui ma waenaSS329 a me SS316aia i loko o kā lākouʻano liʻiliʻi:

  • SS316ua pihaʻaustenitic, ʻo ia hoʻi kona ʻano kristal he cubic face-centered (FCC). Hāʻawi kēia iā ia i ka paʻakikī maikaʻi loa, nā waiwai non-magnetic, a me ka weldability maikaʻi.

  • SS329 is pālua, i haku ʻia me kahi o 50% ferrite a me 50% austenite. Hoʻohui ka ʻōnaehana ferritic (body-centered cubic)ka ikaika a me ke kūpaʻa i ka haki ʻana o ka chloride, ʻoiai ka ʻāpana austenitic e mālama neika ductility.

Ma muli o kēia, ua aneane like ʻo SS329 meʻelua ka ikaikae like me SS316 akā ʻaʻole maʻalahi ke hana a me ka mīkini.

5. Nā Waiwai Mekanika

He mea nui nā ʻokoʻa mīkini:

  • Ka ikaika hāʻawi:SS316 ≈ 205 MPa, SS329 ≈ 450 MPa

  • Ikaika Hoʻopaʻa:SS316 ≈ 515 MPa, SS329 ≈ 620 MPa

  • Hoʻolōʻihi:SS316 ≈ 40%, SS329 ≈ 25%

ʻO ke ʻano kēiaSS329hāʻawi i ka hiki ke hāpai i ke kaumaha kiʻekiʻe a me ke kūpaʻa luhi, e kūpono ana nonā moku kaomi a me nā ʻāpana ma waho o ke kai. SS316, ma ka ʻaoʻao ʻē aʻe, hāʻawi i ka maʻalahi nui aʻe, ka hoʻopau ʻana o ka ʻili maikaʻi, a me ka hana anu maʻalahi no nā noi hoʻonaninani a i ʻole nā ​​​​​​hana haʻahaʻa.

6. Hoʻohālikelike ʻana i ke kūpaʻa ʻana i ka palaho

Kūpaʻa nā papa ʻelua i ka pala, akā i lokonā wahi like ʻole:

a) Ka palaho o ke kaumaha Chloride

  • Hiki i ka SS316 ke nahā ma lalo o ka hoʻopili ʻana o ka chloride no ka manawa lōʻihi ma nā mahana kiʻekiʻe.

  • Kūʻē ʻo SS329 i ka haki ʻana o ka chloride stress corrosion, e kūpono ana nonā hoʻohana ʻana i ka wai kai a me ka brine.

b) Ka pala o ka lua a me ka ʻōpala

  • Hoʻomaikaʻi ka molybdenum o SS316 i ke kūpaʻa ʻana i ka pitting, akā a hiki i nā pae chloride kaulike (≈300 ppm).

  • Hana maikaʻi ʻo SS329 i nā ʻano chloride kiʻekiʻe ma muli o kona chromium kiʻekiʻe a me ka pae duplex.

c) Ke kū'ē ʻana i ka ʻakika

  • He maikaʻi ka SS316 no nā waikawa e like me ka acetic, phosphoric, a me ka sulfuric (dilute).

  • Hoʻokele maikaʻi ʻo SS329 i nā waikawa oxidizing a me nā alkalis, ʻoi aku hoʻi i nā kūlana chloride-acid i hui pū ʻia.

d) Ka palaho ʻana o ka ʻili honua

  • He kūpaʻa nā mea ʻelua ke mālama pono ʻia i ka wela. Eia nō naʻe, pono e hana pono ʻia ʻo SS329 e pale aku aika hoʻokumu ʻana o ka pae sigmai hiki ke hoʻemi i ka paʻakikī.

I ka pōkole:
Nonā noi kai a i ʻole nā ​​​​​​kemika, hana maikaʻi ʻo SS316 i nā pae chloride waena, ʻoiaiʻO SS329 ke koho maikaʻi loanoma waho o ke kai a i ʻole ka desalinationnā wahi noho.

7. Kuʻihao a me ka Hana ʻana

He maʻalahi ka hoʻoheheʻe ʻana o SS316 me nā kaʻina hana maʻamau āpau (TIG, MIG, SMAW), a ʻaʻole koi pinepine ʻia ka mālama wela ma hope o ka hoʻoheheʻe ʻana.

ʻOiai ʻo SS329 ka duplex, pono iakaohi wela pololeii ka wā o ka hoʻoheheʻe ʻana e mālama i kona kaulike pae. Hiki i ka hoʻokomo wela nui ke alakaʻi i nā pae palupalu e hoʻohaʻahaʻa i ke kūpaʻa ʻana i ka pala. He mea koʻikoʻi ka hoʻohana ʻana i nā metala hoʻopihapiha kūpono a me nā kinoea pale kūpono.

I ka wā e hiki mai anaka hoʻokumu ʻana a me ka mīkini ʻana:

  • ʻOi aku ka maʻalahi o ke pelu ʻana, ka ʻōwili ʻana, a me ka poli ʻana o ka SS316.

  • ʻOi aku ka paʻakikī o ke kūkulu ʻana i ka ikaika kiʻekiʻe o SS329 akā kūpono no nā hale paʻa.

8. Ke kū'ē ʻana i ka mahana

Mālama ʻo SS316 i kona ikaika a me ke kūpaʻa i ka pala a hiki i ka870°C (1600°F)ma ka lawelawe mau.

ʻOiai ikaika ka SS329 i ka mahana o ka lumi, hiki ke hana i nā ʻāpana palupalu inā hōʻike ʻia i nā mahana kiʻekiʻe no ka manawa lōʻihi (ma luna o 300°C). Eia nō naʻe, hana maikaʻi loa ia i loko omahana waenanā wahi ea ma lalo o ke kaumaha mechanical a me ka hōʻike ʻana o ka chloride.

No laila, makemake ʻia ʻo SS316 nolawelawe wela kiʻekiʻe, ʻoiai ʻo SS329 ka mea kūpono nonā wahi hoʻoluhi kiʻekiʻe, mahana waena, ʻinoʻino.

9. Kumukūʻai a me ka Loaʻa

Ma keʻano laulā,ʻOi aku ke kumukūʻai o SS329ma mua o SS316 ma muli o kāna kaʻina hana paʻakikī a me nā koi mālama wela i kāohi ʻia. Eia nō naʻe, hāʻawi iaʻoi aku ka lōʻihi o ke ola lawelawe a me nā kumukūʻai mālama haʻahaʻai nā wahi hoʻouka kaua, e hoʻolilo ana i mea kūpono i ke kumukūʻai i ka hala ʻana o ka manawa.

Loaʻa ka SS316 ma nā wahi a pau a hana ʻia ma ka honua holoʻokoʻa, e lilo ia i mea kaulana loa.koho maʻamau a me ka hoʻokele waiwaino ka hoʻohana maʻamau.

Inā pili kāu papahana inā paipu wai kai, nā pahu kemika, a i ʻole nā ​​​​​​mea hana aila, ʻo ka hoʻopukapuka kālā ʻana ma SS329 e mālama i nā kumukūʻai mālama i ka wā e hiki mai ana.nā lako kīhini, nā panela hoʻolālā, a i ʻole ka hoʻohana kai mālie, he koho kūpono a kūpono hoʻi ke kumukūʻai o ka SS316.

10. Nā noi o SS316

Loaʻa ka SS316 ma aneane nā ʻoihana āpau mahalo i kona kaulike o ke kūpaʻa ʻana i ka pala, ka hana, a me nā hiʻohiʻona nani. ʻO nā noi maʻamau:

  • Nā mea hoʻopaʻa a me nā mea hoʻopaʻa moana

  • Nā lako meaʻai a me nā mea inu

  • Nā laina hana kemika a me nā lāʻau lapaʻau

  • Nā mea hoʻololi wela a me nā mea hoʻoheheʻe

  • Nā helehelena hoʻolālā a me nā alahao

  • Nā mea hana lapaʻau a me nā mea hana ʻoki kino

ʻO kona hoʻopau ʻālohilohi a me ke ʻano hana e kaulana loa ai i nā ʻoihana e koi ana i nā mea ʻeluaka hana a me ke ʻano.

11. Nā noi o SS329

Ma muli o kona ikaika a me ke kūpaʻa i ka pala i nā kūlana hoʻouka kaua,SS329makemake ʻia ma:

  • Nā paipu ʻaila a me ke kinoea ma waho o ke kai

  • Nā hale hana desalination a me nā ʻōnaehana wai kai

  • Nā mea hoʻoheheʻe pulp a me ka pepa

  • Nā pahu hana kemika

  • Nā mea hoʻololi wela i hōʻike ʻia i nā hopena chloride

  • Nā ʻāpana kūkulu i nā kahua moana

Hōʻoia kona ʻano duplexikaika mīkini kiʻekiʻeʻoiai ma lalo o nā ukana hoʻoikaika a me nā loli o ke kaomi.

12. Hōʻuluʻulu Manaʻo Hana

SS316:

  • ʻAno: Austenitic

  • Ikaika: Kaulike

  • Ke Kū'ē ʻana i ka ʻAʻai: Maikaʻi loa (nā chloride waena)

  • Ka hiki ke hoʻokumu: Maikaʻi loa

  • Kuʻihao: Maʻalahi

  • Hoʻohana maʻamau: Meaʻai, kemika, kuhikuhipuʻuone, kai mālie

SS329:

  • ʻAno: Duplex

  • Ikaika: Kiʻekiʻe loa

  • Ke Kū'ē ʻana i ka ʻAʻai: ʻOi aku ka maikaʻi (nā chloride kiʻekiʻe, ka wai kai)

  • Ka Hiki ke Hoʻohālikelike: Kaulike

  • Kuʻihao: Pono ka mana

  • Hoʻohana Maʻamau: ʻAila a me ke kinoea, ma waho o ke kai, desalination, ʻoihana

I ka hōʻuluʻulu manaʻo, ʻo ka ʻokoʻa nui ma waena o SS316 a me SS329 ʻo ia kake kaulike ma waena o ka ikaika a me ke kūpaʻa i ka palahoHāʻawi ʻo SS329 i ke kūpaʻa mechanical a me ka chloride ʻoi aku ka nui, ʻoiai ʻo SS316 e hāʻawi i ka formability maikaʻi a me ke kūpaʻa thermal.

13. Ke koho ʻana ma waena o SS329 a me SS316

ʻO ke koho ʻana i ke kila kila kūpono e pili ana i nā kūlana hana:

  • Inā he mau mea nui ka ikaika a me ke kū'ē'ē chloride, kohoSS329.

  • Inā ʻoi aku ka maʻalahi o ka hana ʻana a me ka hoʻopau ʻana o ka ʻili, kohoSS316.

  • Nonā hale hana kemika, nā ʻōnaehana desalination, a i ʻole ka ʻike ʻana i ka wai kai, ʻoi aku ka maikaʻi o SS329.

  • Nonā lako kīhini, nā ʻāpana hoʻolālā hale, a i ʻole nā ​​​​kaʻina hana kemika haʻahaʻa-chloride, ua lawa ka SS316.

ʻO ka hana ʻana me kahi mea hoʻolako akamai e kōkua i ka hōʻoia ʻana i ke koho pono ʻana i nā mea, nā kaʻina hana kuʻi pololei, a me ka maikaʻi kūlike.

14. No ke aha e koho ai iā SAKYSTEEL no nā kila kila Duplex a me Austenitic

Ma ke ʻano he mea hana kila kila akamai a me ka mea hoʻopuka aku,SAKYSTEELhāʻawi i nā mea ʻeluaSS316a meSS329ma nā ʻano e like me nā kaola poepoe, nā papa, nā pepa, a me nā paipu.

Hāʻawi mākou:

  • Nā mea i hōʻoia ʻia (EN 10204 3.1 / 3.2)

  • ʻO ka hoʻokō ʻana o NACE MR0175 a me ISO 15156 no ka lawelawe aila a me ke kinoea

  • ʻO ka mīkini pololei a me nā lōʻihi i hoʻopilikino ʻia

  • Hoʻouna wikiwiki honua a me ke kākoʻo loea

Hoʻohana nui ʻia kā mākou huahana i nā ʻoihana moana, petrochemical, a me ke kūkulu ʻana ma ʻEulopa, ka Hikina Waena, a me Asia Hikina Hema.

No kēlā me kēia papahana,SAKYSTEELhōʻoiaʻiʻo i ka nānā pono ʻana i ka maikaʻi, ka hiki ke hilinaʻi ʻia, a me ka hoʻopili ʻana i nā mea hoʻokuʻu aku.

15. Nā Manaʻo Hope Loa

ʻO ka ʻokoʻa ma waenaSS 329 a me SS316ʻoi aku ka lōʻihi ma mua o ke kemika - wehewehe ia i kā lākouka hana, ke kūpaʻa, a me ke kahua o ka hoʻohanaʻO SS316 ka lio hana o ka ʻoihana no nā ʻāpana kūpaʻa i ka pala, maʻalahi ke hana ʻia, ʻoiai ʻo SS329 ke kū nei i ka pae aʻe o ka ikaika a me ka hilinaʻi i nā ʻano ʻino.

ʻO ka hoʻomaopopo ʻana i kēia mau ʻokoʻa e hiki ai i nā ʻenekinia a me nā mea kūʻai ke koho i ka metala kūpono no ka hana kūpono - e hōʻemi ana i ka mālama ʻana, e hoʻonui ana i ke ola, a me ka hōʻoia ʻana i ka palekana ma lalo o nā kūlana paʻakikī.

I ke kūʻai ʻana i nā mea kila kila, e koho i nā mea hoʻolako me ka ʻike loea i hōʻoia ʻia a me ka hōʻoia maikaʻi i hōʻoia ʻia.SAKYSTEELno nā kila kila hana kiʻekiʻe a kūlike e hoʻokō ana i nā kūlana honua a ʻoi aku ma mua o kāu mau manaʻolana.

Ka manawa hoʻouna: ʻOkakopa-22-2025