347/347H Tšepe e se nang Mokelikeli

Alloy 347 ke tšepe e leka-lekaneng, ea austenitic, ea chromium e nang le columbium e nahanang ka ho fela ha pula ea carbide, 'me kahoo intergranular corrosion. Alloy 347 e leka-lekana ka ho eketseha ha chromium le tantalum 'me e fana ka lisebelisoa tse phahameng tsa ho phunyeha le khatello ea kelello ho feta motsoako oa 304 le 304L, tse ka sebelisoang hape bakeng sa ho pepeseha moo ho amehang le ho bola ha intergranular. Ho ba le khanyetso e ikhethang ea kutu, e betere ho feta ea alloy 321. Alloy 347H ke mofuta o phahameng oa khabone oa Alloy 347 mme o bonts'a mocheso o phahameng o matlafalitsoeng le thepa ea ho hahaba.
Litšobotsi

• Khatello e phahameng ea khatello le thepa ea ho phatloha ha e bapisoa le 304
• E loketse bakeng sa tšebeletso ea mocheso o phahameng
• E hlola maikutlo a ts'usumetso le lipelaelo tsa "intergranular corrosion".
• E ka sebelisoa maemong a phahameng a mocheso
• Ka lebaka la botsitso, thepa e fana ka khanyetso e ntle ea kutu ha e bapisoa le 304/304L.

• Tšebeliso ea Lik'hemik'hale
• Lisebelisoa tsa ho lokisa lijo le ho boloka
• Petroleum Refining fluid catalytic cracking units, polythionic acid service
• Tlhahiso ea Meriana
• Lisebelisuoa tsa ho tsosolosa mocheso oa litšila

Alloy 347 stainless steel plate e bonts'a khanyetso e ntle ea kutu e akaretsang e ts'oanang le 304. E ile ea hlahisoa ho sebelisoa sebakeng sa chromium carbide precipitation scope ka 800 - 1500 ° F (427 - 816 ° C) moo li-alloys tse sa leka-lekaneng joalo ka 304 li ka tlas'a intergranular. hlasela. Boemong bona ba mocheso, khanyetso ea kutu ka kakaretso ea poleiti ea tšepe e sa hloekang ea Alloy 347 e betere ho feta poleiti ea tšepe ea Alloy 321. Alloy 347 e boetse e sebetsa ka tsela e batlang e phahametse Alloy 321 maemong a matla a oxidizing ho fihla ho 1500 ° F (816 ° C). Alloy e ka sebelisoa e le karolo ea tharollo ea nitric; li-acids tse ngata tse hlapolotsoeng ka mocheso o itekanetseng le ka asiti e hloekileng ea phosphoric maemong a mocheso a tlase le litharollo tse hlapolotsoeng tse fihlang ho 10% mochesong o phahameng. Alloy 347 poleiti ea tšepe e sa hloekang e hanela polythionic acid stress corrosion cracking tšebeletsong ea hydrocarbon. E ka boela ea sebelisoa ka chloride kapa fluoride mahala caustic solutions ka mocheso o itekanetseng. Alloy 347 steel stainless plate ha e sebetse hantle ho thapollo ya chloride, leha e le maemong a manyane, kapa ho sulfuric acid.