UNS Naj Npawb N 08825
Lwm cov npe: Alloy 825
Incoloy 825 yog npib tsib xee-hlau-chromium alloy nrog ntxiv rau ntawm molybdenum thiab tooj liab. No npib tsib xee hlau alloy tshuaj lom neeg yog tsim los kom muaj kev tiv thaiv tsis kam mus rau ntau qhov chaw muaj zog. Nws zoo ib yam li alloy 800 tab sis muaj kev txhim kho zoo rau aqueous corrosion. Nws muaj cov tshuaj tiv thaiv zoo rau ob leeg txo qis thiab oxidizing acids, kom muaj kev nyuaj siab-kev txhim kho corrosion, thiab rau hauv zos nres xws li pitting thiab crevice corrosion. Alloy 825 yog qhov tshwj xeeb tshaj yog tiv rau sulfuric thiab phosphoric acids. No npib tsib xee hlau ua haujlwm yog siv rau kev ua tshuaj lom neeg, cov cuab yeej tswj kev ua qias tuaj, roj thiab roj zoo cov raj xa dej, kev tsim cov roj hluav taws xob, kev tsim cov kua qaub, thiab cov khoom siv pickling.
Nyob rau hauv cov ntawv twg yog Incoloy 825 muaj?
• Ntawv
• Phaj
• Bar
• Yeeb& Txoj raj (welded& seamless)
• Cov khoom siv (xws li flanges, plam-ons, dig muag, caj dab-caj dab, ncej puab, caj dab ntev ntev, txuas lub qhov taub, lub lauj tshib, tees, txhav kawg, rov qab, lub kaus mom, hla, reducers, thiab cov leeg ntawm lub raj mis)
• Hlau
Dab tsi yog cov yam ntxwv ntawm Incoloy 825?
• Zoo heev tiv thaiv kom txo qis thiab oxidizing acids
• Ua tau zoo tiv thaiv kev ntxhov siab-corrosion
• Txaus siab tiv thaiv rau hauv cheeb tsam nres zoo li pitting thiab crevice corrosion
• Nws tiv taus sulfuric thiab phosphoric acids ntau heev
• Cov cuab yeej zoo nyob rau ob chav thiab kom sov txog li 1020 ° F
• Kev Pom Zoo rau kev siv lub nkoj siab siab ntawm cov phab ntsa kom sov txog li 800 ° F
Alloy 825 (UNS N 08825) Tshuaj lom neeg muaj pes tsawg leeg,%
| N |
Fe |
Cr |
Mb |
Cu |
Cov Ti |
C
|
Mn |
S
|
Si |
Al |
|
38.0-46.0
|
22. 0 min |
19.5-23.5
|
2.5-3.5
|
1.5-3.0
|
.6-1.2
|
0. 05 max |
1 .0 max |
0. 03 max |
0. 5 max |
0. 2 max |
Corrosion kuj
Alloy 825 muaj theem siab ntawm kev tiv thaiv corrosion. Nws tiv taus dav dav corrosion, pitting, crevice corrosion, intergranular corrosion, thiab kev ntxhov siab-corrosion tawg nyob rau hauv ob qho tib si txo thiab oxidizing ib puag ncig.
Hauv kev siv dab tsi Incoloy 825 siv?
• Kev Siv Tshuaj Lom
• Muaj kuab paug-tswj
• Roj thiab roj xa dej zoo txuas
• Txheeb roj rau hluav taws xob
• Cov Cheebtsam hauv Cov Khoom Siv Pickling xws li coil cua sov, tso tsheb hlau luam, pob tawb thiab pob tawb
• Acid ntau lawm
ASTM Cov Lus Qhia
| Yeeb Smls |
Yeeb Nkab Welded |
Raj Smls |
Tube Welded |
Ntawv / Phaj |
Bar |
Forging |
Haum |
|
B423
|
|
|
|
B424
|
B425
|
B564
|
B366, B564
|
General Txhua Yam Khoom
| Tensile (ksi) |
. 2% Tawm (ksi) |
|
85
|
30-35
|
Alloy 825 muaj cov khoom siv zoo ntawm kub los ntawm cryogenic rau qhov kub thiab txias. Txawm li cas los xij, qhov kub tshwm sim dhau ntawm 1000 ° F tuaj yeem ua rau microstructural hloov pauv uas txo qis ductility thiab cuam tshuam lub zog. Alloy 825 yuav tsum tsis txhob siv nyob rau qhov kub uas qhov nkag ntawm qhov chaw nyob yog qhov tsim qauv.
