ASTM A790 UNS S31803 Cov Lus Qhia Tshwj Xeebmuaj ib theem qauv ntawm kwv yees li 50% austenite thiab 50% ferrite. Duplex 2205 feem ntau yog siv rau hauv cov ntawv thov uas yuav tsum tau muaj kev tiv thaiv corrosion thiab siab tsis kam, xws li petrochemicals, offshore engineering, thiab lwm yam. Hu rau peb kom paub ntau ntxiv cov ntaub ntawv thiab cov lus qhia dawb!
Duplex 1.4462 Cov Khoom Siv Hluav Taws Xob
- Yield zog: Ntau dua lossis sib npaug li 450 MPa
- Tensile Strength: Ntau dua lossis sib npaug li 620 MPa
- Elongation: Ntau dua lossis sib npaug li 25%
- Hardness: Max. 290 HWB
Peb cov neeg muab khoom ua tau raws li cov neeg siv khoom tshwj xeeb
- Hardness tus nqi yuav tsum tsis pub tshaj 28 HRC.
- Cov qauv yuav tsum tau etched siv ASTM E 407 etchant tooj 98-K3Fe(CN)6 nrog KOH lossis NaOH.
- Ib qho piv txwv hla yuav raug kuaj xyuas ntawm OD, ID, thiab qhov chaw nruab nrab ntawm phab ntsa.
- Kev kuaj xyuas yuav tsum tau ua tsawg kawg ntawm 400X magnification.
- Cov khoom siv yuav tsum tsis pub muaj cov theem intermetallic thiab precipitates.
- Lub microphotograph ntawm qhov tsawg kawg nkaus ntawm 400X yuav tsum tau muab.
Duplex 2205 yeeb nkab Corrosion yam ntxwv
PRE {{0}} Cr + 3.3Mo + 16N. PRE yuav tsum ntau dua lossis sib npaug rau 34.0.
Kuaj
ASTM A790 UNS S31803 Cov Lus Qhia Tshwj XeebCov yeeb nkab yuav tsum tau hydrotested raws li ASTM A 790 / A 790M thiab ASTM A 1016 / A 1016M.
Charpy V-notch test, per ASTM A 370, yuav tsum ua raws li hauv qab no:
- 1. Tsis siv tau thaum qhov siab tshaj plaws tau txais Charpy specimen muaj qhov dav raws qhov qis dua 2.5 mm (0.1 in.).
- 2. Lub zog nqus dej yuav tsum yog qhov tsawg kawg nkaus ntawm 48 J (36 ft-lbf) nruab nrab thiab 36 J (27 ft-lbf) rau ib qho nqi.
- 3. Kev ntsuas kub yuav tsum yog −46 degree (−50.8 degree F).
- 4. Cov qauv yuav tsum tau taw qhia transverse mus rau txoj kev dov.
