ALLOY 625, UNSN06625

ALLOY 625, UNSN06625

Alloy 625 (UNS N06625)
Kakaretso Motsoako oa nickel-chromium-molybdenum le tlatsetso ea niobium e sebetsang le molybdenum ho thatafatsa matrix a alloy mme ka hona e fana ka matla a phahameng ntle le kalafo e matlafatsang ea mocheso. Alloy e hanela mefuta e mengata ea tikoloho e senyang haholo 'me e hanyetsa ka ho khetheha mekoting le mapetsong. E sebelisoa ts'ebetsong ea lik'hemik'hale, boenjineri ba sebaka sa sefofane le leoatleng, lisebelisoa tsa taolo ea tšilafalo, le lisebelisoa tsa nyutlelie.
Mefuta e Tloaelehileng ea Sehlahisoa Pipe, tube, sheet, strip, plate, round bar, flat bar, forging stock, hexagon le terata.
Sebopeho sa Lik'hemik'hale Wt,% Min Max. Min. Max. Min. Max.
Ni 58.0 Cu C 0.1
Cr 20.0 23.0 Co 1.0 Si 0.5
Fe 5.0 Al 0.4 P 0.015
Mo 8.0 10 Ti 0.4 S 0.015
Nb 3.15 4.15 Mn 0.5 N
PhysicalConstants Boima ba 'mele,g/8.44
Melting Range,℃ 1290-1350
Thepa e Tloaelehileng ea Mechini (Tharollo e Anetsoe)(1000h) Matla a Haholo (1000h) ksi Mpa

1200℉/650℃ 52 360

1400℉/760℃ 23 160

1600℉/870℃ 72 50

1800℉/980℃ 26 18

Microstructure

Alloy 625 ke motsoako o tiileng oa tharollo ea matrix-sefahleho-centered-cubic alloy.
Litlhaku

Ka lebaka la dikahare tse tlase tsa mabokose le kalafo e tsitsitseng ea mocheso, Inconel 625 e bonts'a tšekamelo e nyane ea ho ts'ehetsa le kamora lihora tse 50 mochesong oa 650 ~ 450 ℃.

The alloy e fanoa ka boemo bo bonolo-annealed bakeng sa likopo tse kenyelletsang ho bola ha metsi (Alloy 625, grade 1), 'me e amoheloa ke TUV bakeng sa likepe tsa khatello sebakeng sa mocheso -196 ho 450 ℃.

Bakeng sa lisebelisoa tsa mocheso o phahameng, ka holimo ho hoo e ka bang. 600 ℃ , moo ho hlokahalang matla a phahameng le ho hana ho qhekella le ho phatloha, mofuta o kenyelletsoeng tharollo (Alloy 625, grade 2) e nang le khabone e phahameng hangata e sebelisoa 'me e fumaneha ka kopo ka mefuta e meng ea lihlahisoa.

Ho hanyetsa ho hlahelletseng ha likoti, kutu ea mapheo, le tlhaselo ea intergranular;

Hoo e ka bang tokoloho e feletseng ea ho phatloha ho bakoang ke chloride-induced stress-corrosion;

Ho hanyetsa hantle li-mineral acids, tse kang nitric, phosphoric, sulfuric le hydrochloric acid;

Ho hanyetsa hantle alkalis le organic acid;

Lintho tse ntle tsa mochini.
Khanyetso ea Corrosion

Likahare tse phahameng tsa alloy 625 li e thusa ho mamella mefuta e mengata e fapaneng ea tikoloho e matla ea kutu. Libakeng tse bonolo tse kang sepakapaka, metsi a hloekileng le a leoatle, letsoai le sa nke lehlakore, le mecha ea litaba ea alkaline hoo e ka bang ha ho na tlhaselo. Sebakeng se matla le ho feta sa kutu, motsoako oa nickel le chromium o fana ka khanyetso ho lik'hemik'hale tse oxidizing, athe nickel e phahameng le litaba tsa molybdenum li fana ka khanyetso ho nonoxidizing khahlano le ts'usumetso nakong ea welding, ka tsela eo e thibela ho phatloha ho latelang ha intergranular. Hape, lihlahisoa tse phahameng tsa nickel li fana ka ho phunyeha ha chloride ion-stress-corrosion.
Lisebelisoa

Mofuta o bonolo oa Alloy 625 (grade 1) o ratoa bakeng sa ts'ebeliso ea indasteri ea ts'ebetso ea lik'hemik'hale, ho boenjineri ba leoatleng le lisebelisoa tsa taolo ea tšilafalo bakeng sa ts'ireletso ea tikoloho. Lisebelisoa tse tloaelehileng ke:

1. Lisebelisoa tsa tlhahiso ea asiti ea superphosphoric;

2. Thepa ea ho lokisa litšila tsa nyutlelie;

3. Li-tubes tsa tlhahiso ea khase e bolila;

4. Sistimi ea liphaephe le sheathing ea risers ho hlahloba oli;

5. Indasteri ea kantle ho naha le lisebelisoa tsa leoatleng;

6. Flue gase scrubber le damper likarolo;

7. Liaparo tsa chimney.
Bakeng sa ts'ebeliso ea mocheso o phahameng, ho fihlela hoo e ka bang 1000 ℃, mofuta oa tharollo oa Alloy 625 (grade 2) o ka sebelisoa ho latela khoutu ea ASME bakeng sa likepe tsa khatello. Lisebelisoa tse tloaelehileng ke:

 

1. Likaroloana tsamaisong ea khase ea litšila le limela tsa ho hloekisa litšila tse pepesehileng mocheso o phahameng;

2. Li-flare stacks libakeng tsa ho hloekisa le li-platform tsa offshore;

3. Recuperator le compensator;

4. Litsamaiso tsa ho ntša metsi ka tlas'a metsi a diesel;

5. Li-tubes tsa superheater litsing tsa ho chesa litšila.


Nako ea poso: Nov-11-2022