Ti a ṣe apẹrẹ bi UNS N08020, Alloy 20 (ti a tun mọ ni “Incoloy 020” tabi “Incoloy 20”) jẹ alloy nickel-iron-chromium pẹlu awọn afikun ti bàbà ati molybdenum. O ni o ni iyasọtọ ipata resistance si imi-ọjọ acid, choloride wahala-ibajẹ wo inu, nitric acid, ati phosphoric acid. Alloy 20 le jẹ ni imurasilẹ-gbigbona tabi tutu-ti a ṣe si awọn falifu, awọn ohun elo paipu, awọn flanges, awọn fasteners, awọn ifasoke, awọn tanki, ati awọn paati paarọ ooru. Iwọn otutu ti o dagba yẹ ki o wa ni iwọn 1400-2150°F [760-1175°C]. Nigbagbogbo, itọju ooru ti annealing yẹ ki o ṣe ni iwọn otutu ti 1800-1850°F [982-1010°C]. Alloy 20 jẹ lilo pupọ fun iṣelọpọ petirolu, Organic & awọn kemikali inorganic, iṣelọpọ elegbogi, ati ile-iṣẹ ounjẹ.
1. Kemikali Tiwqn Awọn ibeere
| Ipilẹ Kemikali ti Alloy 20,% | |
|---|---|
| Nickel | 32.0-38.0 |
| Kromiun | 19.0-21.0 |
| Ejò | 3.0-4.0 |
| Molybdenum | 2.0-3.0 |
| Irin | Iwontunwonsi |
| Erogba | ≤0.07 |
| Niobium + tantalum | 8 * C-1.0 |
| Managanese | ≤2.00 |
| Fọsifọru | ≤0.045 |
| Efin | ≤0.035 |
| Silikoni | ≤1.00 |
2. Mechanical Properties of Alloy 20
ASTM B462 Alloy 20 (UNS N08020) awọn ohun elo ayederu ati awọn flange eke.
| Agbara Fifẹ, min. | Agbara ikore, min. | Ilọsiwaju, min. | Modulu odo | |||
|---|---|---|---|---|---|---|
| Mpa | ksi | Mpa | ksi | % | 103ksi | Gpa |
| 620 | 90 | 300 | 45 | 40 | 28 | 193 |
3. Awọn ohun-ini ti ara ti Alloy 20
| iwuwo | Ooru pato | Itanna Resistivity | Gbona Conductivity |
|---|---|---|---|
| g/cm3 | J/kg.°C | µΩ·m | W/m.°C |
| 8.08 | 500 | 1.08 | 12.3 |
4. Ọja Fọọmù ati Standards
| Fọọmu Ọja | Standard |
|---|---|
| Rod, igi ati waya | ASTM B473, B472, B462 |
| Awo, dì ati rinhoho | ASTM A240, A480, B463, B906 |
| Ailokun pipe ati tube | ASTM B729, B829 |
| welded pipe | ASTM B464, B775 |
| welded tube | ASTM B468, B751 |
| Awọn ohun elo welded | ASTM B366 |
| Awọn eegun flanges ati awọn ohun elo ti a ṣe | ASTM B462, B472 |
Akoko ifiweranṣẹ: Oṣu Kẹwa 23-2020