Lub 2205 alloy (UNS S32305 / S31803) yog ib tug ob lub tsev stainless steel muaj 22% chromium, 3% molybdenum thiab 5-6% npib tsib xee-nitrogen hlau. Nws muaj lub dag lub zog, zoo yam toughness thiab zoo zuag qhia tag nrho thiab lub zos kuj muaj zog corrosion.
Piv nrog rau 316L thiab 317L austenitic stainless steels, 2205 alloy muaj superior xeb kuj tau thiab keej kuj. Nws muaj xeb kuj thiab nws thermal expansion coefficient yog qis dua hais tias ntawm austenite. Ntau kev sib deev.
Piv nrog rau austenitic stainless steel, nws muaj ob zaug lub compressive zog. Piv nrog rau 316L thiab 317L, cov designer yuav txo tau nws hnyav thiab tus nqi yog tsawg dua.
Feature txheej txheem cej luam:
2205 Duplex Stainless hlau 2205 alloy yog ib tug ob lub tsev stainless steel muaj 22% chromium, 3% molybdenum thiab 5-6% npib tsib xee-nitrogen hlau. Nws muaj lub dag lub zog, zoo yam toughness thiab zoo zuag qhia tag nrho thiab
lub zos kuj los kev nyuaj siab corrosion.
Piv nrog rau 316L thiab 317L austenitic stainless steel, 2205 alloy muaj superior kev kawm nyob rau hauv tsis kam quav hniav thiab crevice corrosion. Nws muaj xeb kuj thiab nws thermal expansion coefficient yog qis dua hais tias ntawm austenite. Ntau kev sib deev.
Piv nrog rau austenitic stainless steel, nws muaj ob zaug lub compressive zog. Piv nrog rau 316L thiab 317L, cov designer yuav txo tau qhov nyhav thiab yog li ntawd yog tus nqi qis. Qhov no yog tshwj xeeb yog hlau haum rau siv nyob rau hauv lub kub ntau ntawm -50 ° F / +600 ° F, thiab yuav siv tau rau sab kub nyob rau hauv mob loj heev kev txwv (tshwj xeeb tshaj yog rau welded lug).
Daim ntawv thov teb:
1.Pressure hlab ntsha, ntshav siab los qis cia tso tsheb hlau luam, kev kub siab pipelines, Thaum tshav kub kub exchangers (tshuaj ua lag luam).
2.Oil thiab roj pipelines, Thaum tshav kub kub exchanger fittings.
3. Dej kho mob.
4.Pulp thiab daim ntawv kev lag luam classifiers, tshuaj dawb tso khoom, cia ua systems.
5.Rotary shafts, xovxwm yob, hniav, impellers, thiab lwm yam nyob rau hauv high-zog, corrosion-resistant tej kev kawm.
6.Ship los yog tsheb cargo thawv
7. ua zaub mov cov khoom
Standard:
ASTM / ASME ......... ..A240 UNS S32205 / S31803
EURONORM ......... ..1.4462 X2CrNiMoN 22.5.3
AFNOR .................. ..Z3 CrNi 22,05 AZ
Din ......................... W. nr 1,4462
Corrosion kuj:
1.General xeb vim nws siab dua chromium
Molybdenum thiab nitrogen cov ntsiab lus, 2205 tus xeb kuj yog superior rau 316L thiab 317L nyob rau hauv feem ntau tej kev kawm
2. Lub zos xeb kuj
Cov ntsiab lus ntawm chromium, molybdenum thiab nitrogen nyob rau hauv 2205 yuav ua rau nws heev resistant rau xeb thiab crevice corrosion nyob rau corrosive thiab acidic daws teeb meem.
Corrosion nkhaus 4 mpy (0.1 hli / xyoo) nyob rau hauv ib tug sulfuric acid tshuaj uas muaj 2000 ppm ntawm chloride
3. Kev nyuaj siab xeb kuj
Lub ob lub tsev microstructure ntawm stainless steel yuav pab tau kom nws kuj mus kev nyuaj siab crevice corrosion.
Chloride kev nyuaj siab xeb yuav tshwm sim nyob rau hauv lub xub ntiag ntawm tej yam kub, pressures, oxygen thiab chlorides. Vim hais tias cov tej yam kev mob yog tsis haum rau kev tswj. Kev siv ntawm 304L, 316L thiab 317L yog txwv nyob rau hauv no hwm.
5.Fatigue zog xeb
Lub siab lub dag lub zog thiab corrosion kuj ntawm lub 2205 alloy muab nws ua ib siab tsis kam mus corrosion thiab qaug zog. Mas siv nyob rau hauv kev kawm nrog muaj zog corrosiveness.
Cov tseem ceeb heev kub ntawm yaig nyob rau hauv 1M NaCl yog ntsuas siv ib tug AvestaPolarit etched cell.
Tseem ceeb heev kub ntawm speed corrosion nyob rau 10% FeCl3 · 6H2O
Post lub sij hawm: ti-15-2019
