Alloy 20 (Alloy 20) yog ib tug hlau-based Austenitic alloy tsim los tawm tsam cov sulfuric acid corrosion. Nws tau ua tau zoo heev rau cov sulfuric acid acidosion; Nws muaj zog tsis kam mus rau phosphoric acid, nitric acid thiab chloride ib puag ncig, pitting corrosion, pitting corrosion thiab crack corrosion. Yog li ntawd, Alloy 20 muaj lub npe tiv thaiv corrosion alloy; Nws muaj ntau yam kev siv: xws li: tshuaj, khoom noj, tshuaj, kev lag luam hluav taws xob tsim nyog siv nws. Rau kev tiv thaiv kom pitt corrosion thiab chloride corrosion, kev nyuaj siab corrosion cracking teeb meem, thiab lwm yam) feem ntau siv.
Alloy Steel Flanges
Vim yog cov tshuaj lom neeg muaj pes tsawg leeg ntawm Molybdenum (mo) thiab chromium (CR), A335 feem ntau raug xa mus rau qhov chromium molybdenum raj. Molybdenum tsub kom lub zog ntawm cov hlau thiab muaj kev txwv ywj, muaj kev cuam tshuam tiv thaiv, cuam tshuam zoo thiab tawv. Molybdenum tsub ua kom tsis kam mus muag muag, inhibits Grand kev loj hlob, thiab ua chromium steel tsawg dua rau embrittlementLement. Molybdenum yog qhov kev ua tau zoo tshaj plaws rau kev txhim kho kub siab lub zog. Nws tseem txhim kho txoj kev corrosion tsis kam ntawm cov hlau thiab inhibits pitting corrosion. Chromium (lossis Chrome) yog qhov tseem ceeb ntawm cov hlau tsis xeb. Ib qho steel nrog 12% lossis ntau dua chromium yog suav tias yog steel hlau. Chromium yog yuav luag phem rau hauv cov nqe lus ntawm kev tiv thaiv mus rau oxidation thaum kub. Chromium nce tensile, tawm los thiab hardness nyob rau hauv chav tsev.