Wodziwika kuti UNS N08020, Aloyi 20 (yomwe imadziwikanso kuti "Incoloy 020" kapena "Incoloy 20") ndi nickel-iron-chromium alloy yokhala ndi zowonjezera zamkuwa ndi molybdenum. Ili ndi kukana kwa dzimbiri kwapadera ku sulfuric acid, choloride stress-corrosion cracking, nitric acid, ndi phosphoric acid. Aloyi 20 ikhoza kukhala yotentha kapena yozizira ku mavavu, zopangira mapaipi, ma flanges, zomangira, mapampu, akasinja, komanso zigawo zosinthira kutentha. Kutentha kwapangidwe kotentha kuyenera kukhala mu 1400-2150 ° F [760-1175 ° C]. Kawirikawiri, kutentha kwa annealing kuyenera kuchitidwa pa kutentha kwa 1800-1850 ° F [982-1010 ° C]. Aloyi 20 imagwiritsidwa ntchito kwambiri popanga mafuta, organic & inorganic chemicals, processing pharmaceutical, and food industry.
1. Zofunikira Zopangira Chemical
| The Chemical Composition of Aloyi 20,% | |
|---|---|
| Nickel | 32.0-38.0 |
| Chromiun | 19.0-21.0 |
| Mkuwa | 3.0-4.0 |
| Molybdenum | 2.0-3.0 |
| Chitsulo | Kusamala |
| Mpweya | ≤0.07 |
| Niobium + tantalum | 8*C-1.0 |
| Managanese | ≤2.00 |
| Phosphorous | ≤0.045 |
| Sulfure | ≤0.035 |
| Silikoni | ≤1.00 |
2. Mechanical Properties of Alloy 20
ASTM B462 Alloy 20 (UNS N08020) zopangira zopangira ndi ma flanges.
| Mphamvu Zolimba, min. | Zokolola Zamphamvu, min. | Elongation, min. | Young's Modulus | |||
|---|---|---|---|---|---|---|
| Mpa | ksi | Mpa | ksi | % | 103ksi | Gpa |
| 620 | 90 | 300 | 45 | 40 | 28 | 193 |
3. Physical Properties of Alloy 20
| Kuchulukana | Kutentha Kwapadera | Kukaniza Magetsi | Thermal Conductivity |
|---|---|---|---|
| g/cm3 | J/kg.°C | µΩ m | W/m.°C |
| 8.08 | 500 | 1.08 | 12.3 |
4. Mafomu a Zamalonda ndi Miyezo
| Fomu Yogulitsa | Standard |
|---|---|
| Ndodo, bar ndi waya | ASTM B473, B472, B462 |
| Mbale, pepala ndi strip | ASTM A240, A480, B463, B906 |
| Chitoliro chopanda msoko ndi chubu | ASTM B729, B829 |
| Welded chitoliro | ASTM B464, B775 |
| Welded chubu | ASTM B468, B751 |
| Zopangira welded | Chithunzi cha ASTM B366 |
| Ma flanges opangidwa ndi zida zopangira | ASTM B462, B472 |
Nthawi yotumiza: Oct-23-2020