Yakasarudzwa seUNS N08020, Alloy 20 (inozivikanwawo se “Incoloy 020” kana “Incoloy 20”) iine nickel-iron-chromium alloy ine mawedzero emhangura uye molybdenum. Iyo ine yakasarudzika corrosion resistance kune sulfuric acid, choloride stress-corrosion cracking, nitric acid, uye phosphoric acid. Alloy 20 inogona kunge iri nyore kupisa-yakaumbwa kana kutonhora-yakaumbwa kune mavharuvhu, pombi fittings, flanges, fasteners, pombi, matangi, pamwe kupisa exchanger zvikamu. Kupisa kwekuumba tembiricha kunofanira kunge kuri pakati pe1400-2150°F [760-1175°C]. Kazhinji, kupisa kwekupisa kwe annealing kunofanira kuitwa patembiricha ye1800-1850 ° F [982-1010 ° C]. Alloy 20 inoshandiswa zvakanyanya kugadzira peturu, organic & inorganic makemikari, kugadzira mishonga, uye indasitiri yechikafu.
1. Chemical Composition Zvinodiwa
| Iyo Chemical Kuumbwa kweAlloy 20,% | |
|---|---|
| Nickel | 32.0-38.0 |
| Chromiun | 19.0-21.0 |
| Mhangura | 3.0-4.0 |
| Molybdenum | 2.0-3.0 |
| Iron | Balance |
| Carbon | ≤0.07 |
| Niobium+tantalum | 8*C-1.0 |
| Managanese | ≤2.00 |
| Phosphorus | ≤0.045 |
| Sulfur | ≤0.035 |
| Silicon | ≤1.00 |
2. Mechanical Properties yeAlloy 20
ASTM B462 Alloy 20 (UNS N08020) mafittings ekunyepedzera uye maflange ekunyepedzera.
| Kusimba Simba, min. | Goho Simba, min. | Elongation, min. | Young's Modulus | |||
|---|---|---|---|---|---|---|
| Mpa | ksi | Mpa | ksi | % | 103ksi | Gpa |
| 620 | 90 | 300 | 45 | 40 | 28 | 193 |
3. Zvinhu Zvenyama zveAlloy 20
| Density | Specific Heat | Electrical Resistivity | Thermal Conductivity |
|---|---|---|---|
| g/cm3 | J/kg.°C | µΩ·m | W/m.°C |
| 8.08 | 500 | 1.08 | 12.3 |
4. Product Forms uye Standards
| Product Form | Standard |
|---|---|
| Tsvimbo, bhara newaya | ASTM B473, B472, B462 |
| Ndiro, pepa uye mucheka | ASTM A240, A480, B463, B906 |
| Seamless pombi uye chubhu | ASTM B729, B829 |
| Welded pipe | ASTM B464, B775 |
| Welded chubhu | ASTM B468, B751 |
| Welded fittings | ASTM B366 |
| Forged flanges uye forged fittings | ASTM B462, B472 |
Nguva yekutumira: Oct-23-2020