ASTM B463 UNS N08020 Alloy 20 Phaj

ASTM B463 UNS N08020, feem ntau hu ua Alloy 20, yog nickel-hlau-chromium alloy nrog zoo corrosion kuj nyob rau hauv ntau yam acidic ib puag ncig. Nov yog ib qho kev piav qhia ntawm nws cov khoom thiab kev siv:

 

 

Chemical Composition (Tswj):

 

Nickel (Ni): 32.0 - 38 {2}}%

Chromium (Cr): 19.0 - 21 {2}}%

Hlau (Fe): Sib npaug

Tooj liab (Cu): 3.0 - 4.0%

Molybdenum (Mo): 2.0 - 3 0%

Manganese (Mn): 2.0% max

Cov pa roj carbon (C): 0.07% max

Silicon (Si): 1.0% max

Phosphorus (P): 0.045% max

Sulfur (S): 0.035% max

Nitrogen (N): 0.035% max

 

Mechanical Requirements (Hom rau Phaj):

 

Tensile zog: 80 ksi (551 MPa) min

Yield zog (0.2% offset): 35 ksi (241 MPa) min

Elongation: 30% min

Hardness: HRB 95 max

 

Daim ntawv thov:

 

Alloy 20 daim hlau (ASTM B463 UNS N08020) pom kev siv dav hauv kev lag luam xws li kev ua tshuaj lom neeg, tshuaj, khoom noj khoom haus, thiab kev siv dej hiav txwv.

Tshwj xeeb tshaj yog nyiam nyob rau hauv ib puag ncig uas muaj sulfuric acid vim nws tshwj xeeb tsis kam rau sulfuric acid corrosion.

Cov kev siv feem ntau suav nrog cov hlab ntsha siab, cov khoom siv hluav taws xob, cov kav dej, cov twj tso kua mis, cov li qub, thiab cov tso tsheb hlau luam siv rau hauv qhov chaw corrosive.

Hom thiab ntau thiab tsawg:

 

Kub Rolled Phaj:Thickness: 3 hli - 100 hli; Dav: 1000mm - 2500mm; Ntev: 2000mm - 12000mm.

Cold Rolled Phaj:Thickness: 0.3mm - 6mm; Dav: 1000mm - 2500mm; Ntev: 2000mm - 12000mm.

Annealed phaj:Zoo ib yam li cov ntawv kub dov, cov phaj annealed tau txais kev kho cua sov kom zoo dua qub.

Pickled phaj:Cov phaj no muaj qhov huv si, tsis muaj nplai tsis muaj qhov ua tiav los ntawm cov txheej txheem pickling.

 

Q&A:

 

Q: Alloy 20 puas tuaj yeem tiv taus qhov kub thiab txias?

A: Thaum Alloy 20 muaj cov khoom siv zoo thiab kev tiv thaiv corrosion ntawm nruab nrab kub, nws yuav muaj kev txo qis zog thiab corrosion kuj ntawm qhov kub siab tshaj 1000 degree F (538 degree).

 

Q: Puas yog Alloy 20 Weldable?

A: Yog, Alloy 20 yog nkag tau yooj yim welding siv cov txheej txheem vuam ib txwm. Txawm li cas los xij, cov txheej txheem vuam kom zoo thiab kev kho cua sov tom qab vuam tej zaum yuav tsim nyog los tswj nws cov corrosion kuj.

 

Q: Dab tsi ua rau Alloy 20 haum rau sulfuric acid ib puag ncig?

A: Alloy 20 muaj cov qib siab ntawm chromium, npib tsib xee, thiab molybdenum, uas muab kev tiv thaiv zoo heev rau sulfuric acid corrosion, txawm tias qhov kub thiab txias.

 

Q: Puas muaj kev txwv rau kev siv Alloy 20?

A: Thaum Alloy 20 muaj qhov tshwj xeeb corrosion kuj, nws yuav tsis haum rau cov ntawv thov uas muaj zog txo cov kua qaub lossis oxidizing ib puag ncig.

 

Q: Yuav ua li cas alloy 20 daim hlau tiv thaiv corrosion?

A: Ntxiv rau qhov nws muaj kev tiv thaiv corrosion, Alloy 20 daim hlau tuaj yeem tiv thaiv ntxiv los ntawm kev siv cov txheej los yog cov ntaub hauv ob sab phlu, xws li epoxy lossis roj hmab hauv ob sab phlu, rau qhov chaw raug corrosive media.

 

Alloy 20 daim hlau muaj ntau yam thiab muaj kev tiv thaiv corrosion zoo heev hauv ntau qhov chaw xav tau. Kev xaiv cov khoom tsim nyog, kev tsim, thiab kev saib xyuas yog qhov tseem ceeb los ua kom muaj kev ua tau zoo thiab kev ua haujlwm ntev ntawm Alloy 20 Cheebtsam.

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