1.4438 Cov Khoom Siv SS 317L Cov Khoom Siv Tshuaj
Qhov noluj 317lyog renowned rau nws zoo heev corrosion kuj nyob rau hauv ib tug ntau yam ntawm corrosive media, nrog rau acidic thiab alkaline ib puag ncig.UNS S31703high nickel thiab molybdenum cov ntsiab lus muab kev tiv thaiv zoo rau pitting thiab crevice corrosion, ua rau nws tsim nyog rau kev siv hauv ntau yam lag luam xws li tshuaj lom neeg, petrochemical, thiab marine engineering.
SS 317L Tshuaj muaj pes tsawg leeg
Cov pa roj carbon (C): siab tshaj 0.03%
Chromium (Cr): 18.00-20 00%
Nickel (Ni): 11.00-15 {2}}%
Manganese (Mn): Ntau tshaj 2.00%
Silicon (Si): Ntau tshaj 1.00%
Phosphorus (P): Ntau tshaj 0.045%
Sulfur (S): siab tshaj 0.03%
Molybdenum (Mo): 3.00-4 00%
DIN 1.4438 Cov Khoom Siv Khoom
Cov tshuaj muaj pes tsawg leeg ntawm1.4438 khoom SS 317Lyog ib qho ntawm cov yam tseem ceeb uas ua rau nws cov corrosion kuj thiab durability. Qhov no alloy 317L yog tsim los ntawm ntau yam, xws li carbon, chromium, npib tsib xee, molybdenum, thiab hlau.
Cov pa roj carbon (C)
Cov ntsiab lus carbon hauvStainless hlau 317L feem ntau txwv rau qhov siab tshaj plaws ntawm 0.03%. Cov ntsiab lus tsis tshua muaj carbon no ua kom cov khoom tsis kam mus rau rhiab heev thiab intergranular corrosion.
Chromium (Cr)
Chromium yog ib feem tseem ceeb ntawmTSI 317L, contributing rau cov khoom zoo heev corrosion kuj thiab high-temperature zog. Cov hlau no feem ntau muaj ntawm 18% thiab 20% chromium.
Nickel (Ni)
Nickel yog lwm qhov tseem ceeb hauv cov hlau tsis muaj steel hlau, ua rau lawv cov corrosion thiab kub tsis kam, thiab muaj peev xwm ntxiv dag zog.SWB 317Lfeem ntau muaj cov ntsiab lus nickel ntawm 11% mus rau 15%.
Molybdenum (hli)
Molybdenum ho txhim kho cov khoom tiv thaiv rau pitting thiab crevice corrosion, ua rau nws yog ib qho kev xaiv tsim nyog rau kev nyuaj ib puag ncig xws li marine thiab tshuaj ua.EN 1.4438 khoom sivFeem ntau muaj ntawm 3% thiab 4% molybdenum.
Hlau (Fe)
Hlau yog lub hauv paus tseem ceeb hauv1.4438 AISI 317L, ua cov feem ntau ntawm cov alloy muaj pes tsawg leeg. Nws pab txhawb rau cov khoom tshwj xeeb lub zog, durability, thiab corrosion kuj.
Xaus
UNS S31703yog ib qho zoo heev stainless hlau alloy vim nws cov khoom tshwj xeeb. Cov tshuaj muaj pes tsawg leeg ntawm cov hlau no, tshwj xeeb tshaj yog nws cov ntsiab lus tsis tshua muaj carbon thiab cov feem pua ntawm cov chromium, npib tsib xee, molybdenum, thiab hlau, pab txhawb rau nws cov corrosion kuj zoo heev, kub kub lub zog, thiab dav dav. Cov cwj pwm no ua1.4438 khoom SS 317Lib qho kev xaiv tsim nyog rau ntau yam kev siv, suav nrog kev ua tshuaj lom neeg, thaj chaw marine, thiab kev tsim tshuaj.
