17-4 PH muaj qhov muaj zog, tiv thaiv corrosion thiab hardness, thiab nws cov khoom siv kho tshuab tuaj yeem txhim kho los ntawm kev kho cua sov. Tom qab kev kho mob, 17-4 PH tuaj yeem ua rau cov qib zog siab li 1100 txog 130O MPa (160 txog 190 ksi).
Lub cev muaj zog ntawm 17-4PH Stainless Steel Tube:
Melting ntau: 2560-2625 degree F (1404-1440 degree c)
Ceev: 0.2820 lb/in3
Corrosion Resistance: 17-4 stainless hlau ua tau zoo nyob rau hauv ntau yam atmospheric ib puag ncig, txawm thaum raug corrosive ntsiab.
Thaum tshav kub kub tsis kam: Nws tsis pom zoo kom siv 17-4 tsis tu ncua saum 590C.
Kub saum toj no yuav ua rau corrosion cracking. 550 degree yog qhov zoo tshaj plaws tempering kub hauv chloride nruab nrab.
Cov txiaj ntsig tau zoo heev txog li 1100-1300 MPa (160-190 ksi) tuaj yeem tau.
Corrosion kuj:
Kev tiv thaiv corrosion ntawm 17-4PH Stainless Steel Tube yog piv rau 304 stainless hlau nyob rau hauv feem ntau ib puag ncig, thiab feem ntau zoo dua 40O series stainless hlau. Nws yog siv nyob rau hauv daim ntawv thov uas yuav tsum tau ob qho tib si nruab nrab corrosion kuj thiab exceptionally siab zog. Alloy 17-4PH muaj qhov sib piv corrosion kuj rau 304L hauv qee yam tshuaj, khoom noj siv mis, khoom noj, ntawv thiab roj av.
Alloy 17-4PH nyob rau hauv cov tshuaj annealed mob (Txoj Cai A) yuav tsum tsis txhob muab tso rau hauv kev pab. Cov hlau yog nquag ua rau pob txha tawg thiab muaj kev cuam tshuam ntau dua rau kev ntxhov siab corrosion tawg dua li cov khoom qub.
Yog tias muaj kev pheej hmoo ntawm amide kev nyuaj siab corrosion cracking, kev laus kub siab tshaj 1022 degree F (550 degree) yuav tsum tau xaiv, nyiam dua 1094F (590C). 1022F (550'C) yog qhov pom zoo kom sov kub hauv kev pabcuam chloride. 1094 degree F (590 degree c) nyiam nyob rau hauv H2S media.
Alloy 17-4PH yog nyob rau hauv crevice thiab pitting corrosion thaum raug dej hiav txwv stagnation rau lub sij hawm ntev.
