Qhov txawv ntawm C276 thiab 316L yog dab tsi?

Hauv kev lag luam cov ntaub ntawv sector,stainless hlauthiabHastelloy alloyua lub luag haujlwm tseem ceeb vim lawv qhov tshwj xeeb corrosion kuj. Cov qub, hu ua "stainless acid-} cov hlau tsis muaj zog," yog dav siv hauv kev tsim kho, kev ua zaub mov, thiab lwm yam, thaum tom kawg, nrog nws cov tshuaj tiv thaiv tshwj xeeb, tuav txoj haujlwm tseem ceeb hauv chemical engineering thiab marine engineering. Txawm hais tias ob qho tib si yog corrosion- cov ntaub ntawv tiv taus, lawv txawv qhov sib txawv hauv lawv cov muaj pes tsawg leeg, kev ua tau zoo, thiab daim ntawv thov scenarios. Kab lus no yuav txheeb xyuas qhov sib txawv ntawm316L stainless hlauthiabHastelloy C276alloy los ntawm tsib qhov kev xav: tshuaj muaj pes tsawg leeg, lub cev muaj zog, thiab thaj chaw siv.

• 316L Stainless hlau: Stainless hlau yog hlau-raws li alloy uas nws cov ntsiab lus yog chromium (Ntau dua lossis sib npaug li 10.5%). Chromium tsim cov oxide zaj duab xis ntom ntom (Cr₂O₃) ntawm cov hlau, muab kev tiv thaiv corrosion.316L stainless hlau(16Cr-12Ni-2.5Mo) belongs rau chromium-nickel-molybdenum steel (Cr-Ni-Mo system). Qhov sib ntxiv ntawm molybdenum ho txhim kho pitting corrosion kuj thiab yog dav siv nyob rau hauv seawater ib puag ncig.
• Hastelloy C276: Hastelloy C276yog nickel-raws li superalloy, feem ntau muaj ntau tshaj 50% npib tsib xee. Lub synergistic teebmeem ntawm molybdenum, chromium, tungsten, thiab lwm yam khoom muab corrosion kuj nyob rau hauv huab ib puag ncig.

1. Corrosion Resistance

• 316L stainless hlau: Molybdenum txhim khu cov tshuaj chloride ion tsis kam, tab sis nws tseem corrodes loj heev nyob rau hauv muaj zog oxidizing acids xws li 65% nitric acid.
• Hastelloy C276: Tus nqi corrosion hauv boiling 65% nitric acid tsuas yog 0.01 hli / xyoo, 1/50 ntawm 316L. Tus nqi corrosion nyob rau hauv 10% hydrochloric acid yog 0.02 hli / xyoo, thaum 316L dissolves kiag li nyob rau hauv tib yam mob.

2. Mechanical Properties

• 316L stainless hlau: Tensile lub zog ntawm 520-620 MPa, elongation ntawm 40% -60%, ua rau nws haum rau kev sib sib zog nqus nqus.
• C-276 alloy: Chav kub tensile zog ntawm 730 MPa, elongation ntawm 40%. Nws tuav lub zog tensile ntawm 520 MPa ntawm 650 degree, thaum 316L lub zog poob rau 310 MPa ntawm qhov kub thiab txias.

1. 316 daim ntawv thov stainless hlau

• Marine engineering: 316 yog siv rau hauv cov nkoj, cov khoom siv desalination, thiab cov chaw ntug dej hiav txwv los tiv thaiv corrosion los ntawm cov chloride ion concentrations hauv dej hiav txwv.
• Cov khoom siv tshuaj: 316 zoo txuas ntxiv lub neej kev pab cuam ntawm cov ntim tshuaj, reactors, thiab piping systems ua hauj lwm nyob rau hauv acidic los yog chlorine -muaj xov xwm.
• Cov cuab yeej kho mob: 316 kuj nquag siv hauv qee yam khoom siv kho mob thiab cov khoom siv phais uas yuav tsum tau muaj kev tiv thaiv corrosion siab.
• Kev lag luam zaub mov thiab dej haus: 316 stainless hlau outperforms 304 nyob rau hauv ib co khoom noj khoom haus thiab brewing khoom ua hauj lwm nyob rau hauv ntub thiab corrosive ib puag ncig.

2. Hastelloy C276 daim ntawv thov

• Chemical reactors thiab piping systems: C276 zoo tiv thaiv corrosion hauv cov kav dej thiab cov khoom siv hauv acidic, alkaline, thiab chlorine -muaj ib puag ncig.
• Marine engineering: C276 feem ntau yog siv rau hauv nkoj, offshore platforms, thiab cov khoom siv desalination los tiv thaiv corrosion los ntawm siab salinity hauv dej hiav txwv.
• Kev lag luam roj thiab roj: C276 xyuas kom ntev -lub sij hawm, ruaj khov kev khiav hauj lwm ntawm cov cuab yeej nyob rau hauv siab - kub, siab - siab, thiab corrosive ib puag ncig.

316L

Hastelloy C276