Duplex Stainless hlau

Duplex stainless hlau qib 2205 (tseem hu ua UNS S31803 / S32205, ASTM A240 Hom 2205, Inox 2205, AISI 318LN, SUS 329J3L, lossis EN 1.4462) yog ob theem (ferritic% 2-au) alloys. chromium, 2.5-3.5% molybdenum, 4.5-6.5% nickel, thiab roughly 0.15% nitrogen. Nws qhov sib npaug microstructure muab kev sib xyaw tshwj xeeb ntawm lub zog siab thiab zoo heev corrosion kuj. Piv txwv li, qib 2205 feem ntau muaj kwv yees li ob npaug ntawm cov khoom muaj zog ntawm 316L stainless hlau, tso cai rau cov neeg tsim khoom siv ntau qhov sib dua, sib dua yam tsis muaj kev txi.

Cov hlau feem ntau yog muab nkag rau hauv qhov kev daws teeb meem (ib ASTM A240 / A240M) kom khaws cov qauv duplex zoo tagnrho. Qib 2205 tseem tawv los ntawm qhov kub thiab txias (nyob ib ncig ntawm -50 ° C) txog li +300 ° C; Tshaj li qhov ntau, nkig sigma theem tuaj yeem tsim hauv welds. Cov khoom no ua rau duplex 2205 ib qho kev xaiv zoo tshaj plaws rau kev thov xws li kev ua tshuaj lom neeg, offshore roj & roj, thiab marine ib puag ncig uas yuav tsum tau muaj zog thiab chloride corrosion kuj.