General Properties
Alloy 2205 duplex stainless hlau phaj yog 22% Chromium, 3% Molybdenum, 5-6% Nickel nitrogen alloyed duplex stainless hlau phaj nrog siab dav, thaj chaw thiab kev ntxhov siab corrosion kuj muaj zog ntxiv rau lub zog thiab zoo heev cuam tshuam toughness.
2205 stainless hlau coiled tubing
Alloy 2205 duplex stainless hlau phaj muab pitting thiab crevice corrosion kuj superior rau 316L los yog 317L austenitic stainless hlau nyob rau hauv yuav luag tag nrho cov corrosive media.Nws kuj muaj cov khoom zoo corrosion thiab yaig qaug zog nrog rau qis thermal expansion thiab thermal conductivity ntau dua li austenitic.
Lub zog tawm los yog li ob npaug ntawm austenitic stainless hlau.Qhov no tso cai rau tus tsim kom txuag tau qhov hnyav thiab ua rau cov alloy ntau tus nqi sib tw thaum piv rau 316L lossis 317L.
2205 stainless hlau coiled tubing
Alloy 2205 duplex stainless hlau phaj yog tshwj xeeb tshaj yog haum rau daim ntaub ntawv npog qhov kub ntawm -50 ° F / + 600 ° F.Kev ntsuas kub sab nraud qhov no yuav raug txiav txim siab tab sis xav tau qee qhov kev txwv, tshwj xeeb tshaj yog rau cov qauv welded.
2205 stainless hlau coiled tubing
Corrosion Resistance
General Corrosion
Vim tias nws cov chromium siab (22%), molybdenum (3%), thiab nitrogen (0.18%) cov ntsiab lus, cov khoom tiv thaiv corrosion ntawm 2205 duplex stainless hlau phaj zoo dua li ntawm 316L lossis 317L hauv ntau qhov chaw.
Localized Corrosion Resistance
Cov chromium, molybdenum, thiab nitrogen hauv 2205 duplex stainless hlau phaj kuj muab kev tiv thaiv zoo heev rau pitting thiab crevice corrosion txawm nyob rau hauv heev oxidizing thiab acidic daws.
Isocorrosion Curves 4 mpy (0.1 mm / xyoo), nyob rau hauv sulfuric acid tov muaj 2000 ppm
Kev nyuaj siab Corrosion Resistance
Lub duplex microstructure yog paub los txhim kho cov kev ntxhov siab corrosion cracking kuj ntawm stainless hlau.
Chloride stress corrosion cracking ntawm austenitic stainless hlau tuaj yeem tshwm sim thaum muaj qhov tsim nyog ntawm qhov kub thiab txias, tensile stress, oxygen, thiab chlorides.Txij li cov xwm txheej no tsis yooj yim tswj tau, kev ntxhov siab corrosion tawg feem ntau yog ib qho teeb meem rau kev siv 304L, 316L, lossis 317L.
2205 stainless hlau coiled tubing
Corrosion Fatigue Resistance
Alloy 2205 duplex stainless hlau phaj sib xyaw ua ke siab zog thiab siab corrosion kuj los tsim siab corrosion qaug zog.Cov ntawv thov uas ua cov cuab yeej ua haujlwm raug rau ob qho tib si aggressively corrosive ib puag ncig thiab rau lub voj voog thauj khoom tuaj yeem tau txais txiaj ntsig los ntawm cov khoom ntawm 2205 duplex stainless hlau phaj.
Critical Pitting Kub hauv 1M NaCl ntsuas siv Outokumpu Stainless, Inc Pitting Cell
Critical Crevice Corrosion Temperature (CCT) hauv 10% FeCl3•6H2O
General Corrosion nyob rau hauv ntub txheej txheem phosphoric acids
| Corrosion tus nqi, ip | ||||||||
|---|---|---|---|---|---|---|---|---|
| Qib | Kev daws A, 1401/4F | Kev daws B, 1201/4F | ||||||
| 2205 | 3.1 | 3.9 | ||||||
| 316l ua | > 200 | > 200 | ||||||
| 904l ua | 47 | 6.3 | ||||||
| Kev sib xyaw, wt% | ||||||||
| P2O 5 | HCl | HF | H2SO4 | Fe2O 3 | Al203 | SiO 2 | CaO | MgO |
| Sib A 54.0 | 0.06 ib | 1.1 | 4.1 | 0.27 ib | 0.17 ib | 0.10 | 0.20 ib | 0.70 ib |
| Sib B 27.5 | 0.34 ib | 1.3 | 1.72 ib | 0.4 | 0.001 ib | 0.3 | 0.02 ib | — |
Kev nyuaj siab Corrosion Cracking Resistance
| Boiling | Wick | Boiling | |
|---|---|---|---|
| Qib | 42% MgCl2 | Kuaj | 25% NaCl |
| 2205 | F | P | P |
| 254 SMO® | F | P | P |
| Qauv: 316L | F | F | F |
| npe 317l | F | F | F |
| luj 904l | F | P los yog F | P los yog F |
| Alloy 20 | F | P | P |
(P = Pass, F = Fail)
Tshuaj ntsuam xyuas
Tus nqi zoo (qhov hnyav %)
| Cov pa roj carbon | Chromium | Nickel | Molybdenum | Nitrogen | Lwm tus |
|---|---|---|---|---|---|
| 0.020 ib | 22.1 | 5.6 | 3.1 | 0.18 | S = 0.001 |
| PREN = [Cr%] = 3.3 [Mo%] = 16 [N%] ≥ 34 | |||||
Mechanical Properties
Mechanical Properties ntawm Chav Kub
| ASTM A 240 | Hom | |
|---|---|---|
| Yield zog 0.2%, ksi | 65 feeb. | 74 |
| Tensile zog, ksi | 90 feeb. | 105 |
| Elongation,% | 25 feeb. | 30 |
| Hardness RC | 32 max. | 19 |
Tensile Properties ntawm qhov kub siab
| Qhov kub thiab txias ° F | 122 | 212 | 392 ib | 572 ib |
|---|---|---|---|---|
| Yield zog 0.2%, ksi | 60 | 52 | 45 | 41 |
| Tensile zog, ksi | 96 | 90 | 83 | 81 |
Lub cev muaj zog
| Qhov kub thiab txias ° F | 68 | 212 | 392 ib | 572 ib | |
|---|---|---|---|---|---|
| Qhov ntom | lb/ib 3 | 0.278 ib | — | — | — |
| Modulus ntawm Elasticity | psi x 106 | 27.6 ib | 26.1 ib | 25.4 ib | 24.9 ib |
| Linear nthuav dav (68 ° FT) | 10-6 / ° F | — | 7.5 | 7.8 ib | 8.1 |
| Thermal conductivity | Btu/h ft° F | 8.7 ib | 9.2 ib | 9.8 ib | 10.4 |
| Thaum tshav kub kub muaj peev xwm | Btu/lb ft° F | 0.112 ib | 0.119 ib | 0.127 ib | 0.134 ib |
| Hluav taws xob Resistivity | Ω x 10-6 | 33.5 ib | 35.4 ib | 37.4 ib | 39.4 ib |
Post lub sij hawm: Lub Xya hli ntuj-18-2023