ʻO ka Inconel 625 Seamless Pipe - ʻO ka Nickel Alloy Go-To no ka Corrosion a me ke Kiʻekiʻe o ka Mahana

Wehewehe Pōkole:

Inā ʻoe e hana ana i ka ʻaila a me ke kinoea, ka ʻenekinia moana, ka hana kemika, a i ʻole ka aerospace, ua ʻike paha ʻoe iā Inconel 625. ʻO ia kekahi o nā superalloys i hoʻokumu ʻia i ka nickel i hoʻohana nui ʻia ma ka mākeke. Koho ka poʻe iā ia ke makemake lākou i kahi mea e hiki ke hoʻoponopono i ka pala a me nā mahana kiʻekiʻe me ka ʻole o ka hiolo ʻana.

Uhi kēia ʻatikala i ke ʻano o ka paipu seamless Inconel 625, he aha ka mea e ʻokoʻa ai mai nā mea ʻē aʻe, kahi e hoʻohana ʻia ai, nā kūlana e kū ai, a me nā mea āu e ʻike ai ma mua o ke kauoha ʻana.

E leka uila mai iā mākou Nā kikoʻī huahana

Nā kikoʻī huahana

Nā Lepili Huahana

He aha ka Inconel 625 Seamless Pipe?

ʻO Inconel 625 (UNS N06625, W.Nr. 2.4856) he hui nickel-chromium-molybdenum me ka niobium i hoʻohui ʻia. Hana pū ka niobium me ka molybdenum e hoʻopaʻa i ka matrix hui, e hāʻawi ana i ka ikaika kiʻekiʻe me ka ʻole o ka pono o ka hoʻoikaika ʻana i ka wela. He mea nui kēlā - ʻo ia hoʻi, hiki iā ʻoe ke hoʻoheheʻe iā ia a loaʻa mau ka ikaika piha me ka ʻole o ka hoʻomehana hou ʻana ma hope o ka hoʻoheheʻe ʻana.

ʻO ke ʻano o ka paipu humuhumu ʻole, ʻaʻohe humuhumu i hoʻopaʻa ʻia ma ka lōʻihi. Hana ʻia ia ma ke kī ʻana i kahi billet paʻa a ʻōwili a huki paha iā ia i ka nui. ʻO ke ʻano o ka humuhumu ʻole ʻana, ʻaʻohe wahi nāwaliwali, ʻaʻohe pilikia o ka pala o ke humuhumu, a ʻoi aku ka maikaʻi o ke kaomi. ʻO ia ke kumu he koho maʻamau nā paipu humuhumu ʻole no nā noi koʻikoʻi kahi i ʻole ai ka hāʻule ʻana.

Hana ka paipu Inconel 625 seamless mai nā mahana cryogenic a hiki i ka 982°C (1800°F). Kūʻē ia i ka pitting, crevice corrosion, a me ka chloride stress corrosion cracking - ʻekolu mau mea e pepehi ai i nā paipu kila kila maʻamau i ka lawelawe moana a me nā kemika.

Ka Hoʻohui Kemika

ʻO ke ʻano o ka haku mele ka mea e hāʻawi ai iā Inconel 625 i kāna hana. Eia ka wehewehe ʻana:

ʻElemene	Kaumaha %
Nikala (Ni)	58.0% min (koena)
Chromium (Cr)	20.0 – 23.0%
Molibdenum (Mo)	8.0 – 10.0%
Niobium + Tantalum (Nb+Ta)	3.15 – 4.15%
Hao (Fe)	5.0% ka palena kiʻekiʻe
Manganese (Mn)	0.50% ka palena kiʻekiʻe
Silika (Si)	0.50% ka palena kiʻekiʻe
Kalapona (C)	0.10% ka palena kiʻekiʻe
Kobalta (Ko)	1.0% ka palena kiʻekiʻe

ʻO ke kiʻekiʻe o ka nickel (58%+) ka mea e palekana ai i ka haki ʻana o ka chloride stress corrosion. Hāʻawi ka molybdenum (8-10%) iā ia i ke kūpaʻa maikaʻi loa i ka pitting a me ka crevice corrosion i loko o ka wai kai a me nā mea i loaʻa ka chloride. Hāʻawi ka niobium (3.15-4.15%) i ka hoʻoikaika ʻana i ka hopena paʻa.

Nā Waiwai Mekanika

Ma ke kūlana annealed, hāʻawi ka paipu Inconel 625 seamless i nā waiwai mechanical maʻamau:

Waiwai	Waiwai
Ikaika Uʻi (Ultimate)	≥827 MPa (120 ksi)
Ikaika Hua (0.2% offset)	≥414 MPa (60 ksi)
Elongation (i loko o 2″)	≥30%
Paʻakikī	≤287 HB
Ka nui o ka paʻa	8.44 g/cm³
Kiko Heheʻe	1290 – 1350°C

ʻO ke ʻano o kēia ma ka hana maoli:Ua lawa ka ikaika o Inconel 625 no nā ʻōnaehana paipu kiʻekiʻe a ua lawa ka paʻa e ola ai i ka hopena a me ka haʻalulu. ʻO ka elongation liʻiliʻi he 30% ʻo ia hoʻi hiki ke pelu ʻia a hana ʻia me ka ʻole o ka nahā.

Ma nā mahana kiʻekiʻe, mālama ʻo Inconel 625 i ka ikaika pono a hiki i ka 982°C (1800°F). Hoʻopaʻa maikaʻi nō hoʻi ia i nā mahana cryogenic - a hiki i ka -196°C - me ka ʻole o ka lilo ʻana i mea palupalu, ʻo ia ke kumu e ʻike ai ʻoe iā ia i loko o nā ʻōnaehana LNG a me ka naikokene wai.

Ke Kū'ē ʻana i ka ʻAʻai — Kahi e ʻĀlohilohi Maoli ai

ʻO kēia ke kumu nui e uku ai ka poʻe i ke kumukūʻai no Inconel 625. Hoʻoponopono ia i nā wahi e hoʻopau ai i ke kila kila 316L i loko o nā mahina.

Nā wahi kai a me nā wahi kai:ʻAneʻane palekana ʻo Inconel 625 i ka pala o ka wai kai. Kūʻē ia i ka pitting, crevice corrosion, a me ka biofouling. ʻO ia ke kumu e ʻike ai ʻoe iā ia i loko o nā paipu hoʻoluʻu wai kai, nā ʻōnaehana wai ahi, nā paipu wai ballast, a me nā lako hana subsea.

Ka haki ʻana o ka palaho koʻikoʻi chloride:ʻO kēia ka mea pepehi kanaka no ke kila kila 304 a me 316 i ka lawelawe kai a me nā kemika. ʻAneʻane palekana ʻo Inconel 625 ma muli o kona nui o ka nickel.

Ke kū'ē'ē'ana i ka'akika:Hoʻohana ʻo Inconel 625 i ka waikawa sulfuric, ka waikawa hydrochloric, ka waikawa phosphoric, nā waikawa i hui pū ʻia, ka chlorine, nā mea hoʻoheheʻe chlorinated, nā fluorides, a me nā alkalis ikaika. I loko o ka mahu waikawa hydrofluoric, hiki i ka nui o ka pala o ke kila kila 316L ke ʻoi aku ma kahi o 65 mau manawa ma mua o Inconel 625.

Ke kū'ē ʻana i ka lua:ʻOi aku ke kiʻekiʻe o ka PREN (Pitting Resistance Equivalent Number) o Inconel 625 ma mua o 316L. I loko o ka hopena 10% FeCl₃ ma 65°C, puka nui ka 316L i nā lua ʻoiai ʻaʻole i hoʻopilikia ʻia ʻo Inconel 625.

Lawelawe ʻawaʻawa (H₂S):Ua ʻāpono ʻia ʻo Inconel 625 no ka lawelawe ʻawaʻawa e like me NACE MR0175 / ISO 15156. Hoʻohana nui ʻia ia i ka hana ʻaila a me ke kinoea ma waho no nā ʻāpana i hōʻike ʻia i ka hydrogen sulfide, carbon dioxide, a me nā chlorides.

Nā ʻAno Huahana a me nā Kūlana

Loaʻa ʻo Inconel 625 i nā ʻano huahana he nui. Hāʻawi ʻo Womic Steel iā lākou āpau:

Paipu a me ka Tube Seamless:ASTM B444 / ASME SB-444, AMS 5581

Ka laulā OD: 6mm - 219mm (maʻamau); a hiki i ka 610mm e loaʻa ana ma ke noi
Mānoanoa o ka paia: 0.5mm - 20mm
Nā Papa: Papa 1 (hoʻoheheʻe ʻia ka hopena, palaoa coarse no ka kolo ʻana) a me Papa 2 (hoʻopaʻa ʻia ka annealed, palaoa maikaʻi no ka luhi)

Paipu i hoʻopaʻa ʻia:ASTM B704, ASTM B705

ʻOi aku ka nui o nā anawaena, ʻoi aku ka hoʻokele waiwai no nā noi koʻikoʻi ʻole

Pā a me ka Pepa:ASTM B443 / ASME SB-443, AMS 5599

Mānoanoa: 0.5mm - 50mm

Pā a me ke koʻokoʻo:ASTM B446 / ASME SB-446, AMS 5666

Anawaena: 6mm - 250mm

Nā hana hoʻoheheʻe:ASTM B564 / ASME SB-564

Nā Flanges, nā mea hoʻopili, nā kino valve, nā kinona maʻamau

Nā Huahana Uea a me ka Kuʻihao:AWS A5.14 ERNiCrMo-3 (metala hoʻopihapiha)

Kaʻina Hana Hana

Hana ʻo Womic Steel i ka paipu Inconel 625 seamless ma o ke kaʻina hana i kāohi ʻia:

Hoʻoheheʻe ʻia:ʻO ka Vacuum induction melting (VIM) a i ʻole ka vacuum arc remelting (VAR) e hōʻoiaʻiʻo i ka haʻahaʻa o ke kinoea a me ka maʻemaʻe kiʻekiʻe.
Ke kui ʻana:Hoʻomehana ʻia ka ʻāpana paʻa a hou ʻia e hana i kahi pūpū hakahaka.
Hoʻopuka wela a ʻōwili paha:Ua hoʻemi ʻia ka pūpū hakahaka i ka nui waena.
Kaha kiʻi anu:Hoʻokō nā hala ʻana o ke kaha kiʻi anu he nui me ka annealing waena i nā ana hope loa a me nā hoʻomanawanui paʻa. Hoʻomaikaʻi ke kaha kiʻi anu i ka hoʻopau ʻana o ka ʻili a me ka pololei o ke ana.
Hoʻoheheʻe ʻana i ka hopena:ʻO ka mālama wela hope loa ma 980-1040°C a ukali ʻia e ka hoʻomaʻalili wikiwiki e hoʻihoʻi i ke kūpaʻa i ka pala a me ka ductility.
Pickling a me ka passivation:Hoʻopau i ka unahi a me ka oxide, e waiho ana i kahi ʻili passive maʻemaʻe.
NDT a me ka hoʻāʻo ʻana:100% hoʻāʻo hydrostatic, hoʻāʻo ultrasonic, hoʻāʻo eddy current, a me ka nānā ʻana o ka dimensional.

No ka paipu i hoʻopili ʻia, hoʻohana ke kaʻina hana i kahi ʻāpana ʻōwili anu i hana ʻia a hoʻopili ʻia me ka hoʻohana ʻana i ka TIG a i ʻole ka plasma welding, a ukali ʻia e ka hoʻoheheʻe ʻana i ka hopena piha a me ka NDT o ka humuhumu weld.

Kuʻihao a me ka Hana ʻana

Ua kaulana ʻo Inconel 625 no ka hiki ke hoʻopili maikaʻi loa. Hiki iā ʻoe ke hoʻopili iā ia me ka hoʻohana ʻana i ka TIG (GTAW), MIG (GMAW), ka hoʻopili lāʻau (SMAW), ka hoʻopili laser, a i ʻole ka hoʻopili ʻana i ke kukuna uila.

Mea hoʻopihapiha i manaʻo ʻia:AWS A5.14 ERNiCrMo-3 (mea hoʻopiha Inconel 625)

Nā mea nui e hoʻomanaʻo ai:

ʻAʻole koi ʻia ka mālama wela ma hope o ka hoʻopili ʻia ʻana — loaʻa ka ikaika o ka metala mai ka hoʻoikaika ʻana i ka hopena paʻa, ʻaʻole mai ka paʻakikī ʻana o ka ua.
E hoʻomaʻemaʻe pono i ka wahi i wili ʻia ma mua o ka wili ʻana - ʻaʻohe aila, ʻaila, a i ʻole ka ʻokesaida.
E kāohi i ka hoʻokomo ʻana o ka wela i ʻole e wela loa.
E mālama i ka mahana o ka interpass ma lalo o 150°C.
E hoʻohana i ke kinoea pale argon maʻemaʻe a i ʻole ke kinoea pale argon-helium.

No ka hoʻopili ʻana i ka metala like ʻole (Inconel 625 i ke kila kila a i ʻole ke kila kalapona), ʻo ERNiCrMo-3 nō hoʻi ka mea hoʻopihapiha i ʻōlelo ʻia.

Nā Noi — Kahi e Loaʻa ai iā ʻoe ka Inconel 625 Seamless Pipe

Hoʻohana ʻia ka paipu Inconel 625 seamless ma nā ʻoihana he nui:

ʻOihana ʻaila a me ke kinoea

ʻO nā paipu a me ka uhi o lalo
Nā laina kahe a me nā mea lele ma lalo o ka moana
Nā laina inikini kemika
Nā ʻāpana wellhead
Paipu kinoea ʻawaʻawa (kūlike me NACE MR0175)
Nā puʻu lapalapa
Nā paipu kai a me nā paipu uka

ʻEnekinia Moana

Nā ʻōnaehana hoʻoluʻu wai kai
Nā ʻōnaehana wai ahi
Nā paipu wai hoʻohaʻahaʻa
Nā mea hoʻohui subsea a me nā hale uwea
Nā ʻōnaehana hoʻopau moku
Nā paipu hoʻoili wela o ka hale hana desalination

Ka Hana Kemika

Ka halihali ʻana o ka waikawa sulfuric, ka waikawa hydrochloric, ka waikawa phosphoric
Nā ʻāpana kūloko o ka reactor
Nā paipu hoʻololi wela (ʻaoʻao media corrosive)
Nā ʻōnaehana desulfurization kinoea flue (FGD)
Nā lako hana hoʻomalu haumia

Lehulehu

Nā ʻauwai hoʻopau o ka mīkini mokulele
Nā laina hydraulic wahie
Nā paipu hoʻokahe ea
Nā ʻōnaehana deicing Nacelle
Nā laina propellant engine rocket

Hana Mana

Nā paipu kōkua mokupuni nukelea
Hoʻōla wela ʻōpala kinoea flue wela kiʻekiʻe
Nā paipu hoʻomehana nui

Nā ʻoihana ʻē aʻe

Nā paipu hana lāʻau lapaʻau (hiki ke hoʻomaʻemaʻe a me ke kūpaʻa i ka palaho)
Paipu hale hana pulp a me ka pepa bleach
Nā paipu hoʻoili hydrogen

ʻO Inconel 625 vs 316L Stainless Steel - He Hoʻohālikelike wikiwiki

He nīnau kēia i loaʻa pinepine iā mākou. Eia ka mana pōkole:

ʻAno	ʻInonel 625	316L kila kila
PREN (kū'ē i ka lua)	≥45	24-26
Mahana lawelawe kiʻekiʻe loa	982°C (1800°F)	~400°C
Ke kū'ē ʻana o ka Chloride SCC	Palekana loa	Hiki ke hoʻopilikia ʻia
ʻO ka pala o ka wai kai	Maikaʻi loa	ʻilihune (pōʻele koke)
Ka ikaika o ka hoʻoulu ʻana (annealed)	≥414 MPa	~170 MPa
Kumukūʻai pili	Kiʻekiʻe	Haʻahaʻa
Ka hiki ke hoʻopili ʻia	Maikaʻi loa, ʻaʻohe PWHT	Maikaʻi, pono paha ka PWHT

I loko o nā kaiapuni waikawa hydrofluoric, hiki i ka 316L ke pala ma kahi o 65 mau manawa ʻoi aku ka wikiwiki ma mua o Inconel 625. I loko o ka wai kai, e popopo nā lua 316L i loko o nā mahina. ʻO Inconel 625 e mau ana no nā makahiki he ʻumi.

Nā Kumukūʻai a me nā Kumukūʻai o Inconel 625

E like me ka makahiki 2025, ʻo ke kumukūʻai o Inconel 625 maʻamau mai$45 a i $85 no ke kilokani, ma muli o ke ʻano huahana, ka nui, ka palapala hōʻoia, a me ka mea hoʻolako:

ʻAno Huahana	Pae Kumukūʻai Kokoke (USD/kg)
Pepa / Pā	$45 – 65
Pā poepoe	$50 – 70
Paipu / Tube humuhumu ʻole	$55 – 75
Uea	$60 – 85

He aha ka mea e hoʻopilikia nui ai i ke kumukūʻai:

Ka nui o ka nikala (~58%) — hahai ke kumukūʻai i nā mākeke nikala LME
Ke ʻano hana - hoʻoheheʻe ʻia, ʻōwili wela, a ʻōwili anu paha
Nā koi hōʻoia - ASTM, ASME, NACE, a i ʻole ka nānā ʻana o nā ʻaoʻao ʻekolu e hoʻohui i ke kumukūʻai
Ka nui o ke kauoha — hoʻohaʻahaʻa nā kauoha nui i ke kumukūʻai no kēlā me kēia kg
Kumu — ʻOi aku ke kumukūʻai o nā mea US/EU ma mua o nā mea i hana ʻia ma Kina

Nā Nīnau i Nīnau Pinepine ʻia

Q: He aha ka ʻokoʻa ma waena o ka paipu Inconel 625 seamless a me ka paipu welded?

A: ʻAʻohe humuhumu longitudinal weld o ka paipu humuhumu ʻole. Hana ʻia ia ma ke kī ʻana i kahi billet paʻa a me ka ʻōwili a i ʻole ke kaha kiʻi ʻana i ka nui. Hana ʻia ka paipu humuhumu mai ka ʻāpana a humuhumu ʻia ma ke humuhumu. ʻOi aku ka ikaika o ka humuhumu ʻole, ʻaʻohe pilikia o ka pala o ka humuhumu, a makemake ʻia no nā noi kiʻekiʻe a me nā noi koʻikoʻi.

Q: He magnetic anei ʻo Inconel 625?

ʻAʻole. ʻAʻole he magnetic ʻo Inconel 625 ma muli o kona ʻano kristal austenitic (FCC).

Q: Pono anei ʻo Inconel 625 i ka mālama wela ma hope o ka hoʻoheheʻe ʻana?

A: ʻAʻole. Hoʻoikaika ʻia ʻo Inconel 625 e ka hoʻoikaika ʻana i ka hopena paʻa (molybdenum a me niobium). ʻAʻole pono ia i ka mālama wela paʻakikī, no laila ʻaʻohe pono o ka mālama wela ma hope o ka weld.

Q: He aha ka metala hoʻopihapiha wili e hoʻohana ʻia no Inconel 625?

A: ʻO AWS A5.14 ERNiCrMo-3 (Inconel 625 filler) ke koho maʻamau. He kūpono hoʻi ia no ka hoʻopili ʻana iā Inconel 625 i ke kila kila a me nā mea hoʻohui nickel ʻē aʻe.

Q: Ua ʻāpono ʻia ʻo Inconel 625 no ka lawelawe ʻawaʻawa (nā wahi H₂S)?

A: ʻAe. Ua ʻāpono ʻia ʻo Inconel 625 e like me NACE MR0175 / ISO 15156 no nā noi lawelawe ʻawaʻawa. Pono e hoʻolako ʻia i ke kūlana annealed.

Q: He aha ka mahana hana kiʻekiʻe loa no Inconel 625?

A: A hiki i 982°C (1800°F) no ka lawelawe mau.

Q: Hiki ke hoʻohana ʻia ʻo Inconel 625 i nā noi cryogenic?

A: ʻAe. Mālama ʻo Inconel 625 i ka paʻakikī a hiki i ka -196°C, e kūpono ai no ka LNG a me nā ʻōnaehana naikokene wai.

Q: He aha ka PREN o Inconel 625?

A: ʻO ka PREN (Pitting Resistance Equivalent Number) o Inconel 625 ma kahi o 45, ʻoi aku ka kiʻekiʻe ma mua o 316L (24-26).

Q: Hiki ke hoʻolako ʻia ʻo Inconel 625 me ka palapala hōʻoia NACE MR0175?

A: ʻAe. Hiki iā Womic Steel ke hoʻolako i ka paipu Inconel 625 seamless me ka hoʻokō piha ʻana o NACE MR0175 / ISO 15156 a me nā palapala hōʻoia EN 10204 Type 3.2.

Q: He aha ka manawa alakaʻi maʻamau no ka paipu Inconel 625 humuhumu?

A: No nā nui maʻamau a me nā māka, ma kahi o 4-6 mau pule. No nā nui maʻamau a i ʻole nā palapala hōʻoia kūikawā, 6-8 mau pule.

E hoʻokaʻaʻike iā Womic Steel

No nā nīnau, ke kākoʻo loea, a i ʻole e noi i kahi ʻōlelo no kāu mau koi paipu Inconel 625 seamless - inā he paipu, tube, bar, plate, forgings, a i ʻole nā ʻāpana maʻamau - e ʻoluʻolu e kelepona mai iā mākou:

Pūnaewele: www.womicsteel.com

Leka uila: info@womicsteel.com

Kelepona / WhatsApp / WeChat:

Lanakila: +86 15575100681

Jack: +86 18390957568

ʻO Womic Steel - ʻO kāu hoa hilinaʻi no ka paipu Inconel 625 seamless a me nā mea hoʻohui nickel hana kiʻekiʻe no nā noi moana, ʻaila a me ke kinoea, kemika, a me ka aerospace.