Irin alagbara, irin 316 (US boṣewa ASTM S31600, Kannada boṣewa 06Cr17Ni12Mo2) jẹ molybdenum kan ti o ni austenitic irin alagbara, irin, nigbagbogbo tọka si bi “irin-irin alagbara, omi” nitori awọn oniwe-o tayọ ipata resistance. O da lori 304 irin alagbara, irin pẹlu afikun ti 2-3% molybdenum (Mo), eyiti o ṣe pataki si resistance rẹ si pitting ati ibajẹ crevice.
Ⅰ.Awọn abuda bọtini
1.Exceptional Ipata Resistance: Awọn afikun ti molybdenum fun ni iṣẹ ti o ga julọ ni awọn agbegbe kiloraidi (fun apẹẹrẹ, omi okun, iyọ iyọ), pẹlu pitting resistance jina ju ti 304 irin alagbara, irin. Iwọn ipata rẹ ni 10% sulfuric acid le kere ju 0.1 mm / ọdun.
2.High-Temperature Performance: Agbara giga-giga ti o dara ati resistance ifoyina, pẹlu iwọn otutu iṣẹ lemọlemọfún titi de 870 ° C ati iṣẹ aarin titi di 925 ° C.
3.Mechanical Properties: Agbara ikore ≥205 MPa, agbara fifẹ ≥515 MPa, elongation ≥40%, ti o funni ni lile lile ati agbara iṣẹ-ṣiṣe.
4.Low Magnetism: Non-oofa ni ojutu-annealed ipinle; le di oofa diẹ lẹhin iṣẹ tutu. Dara fun ohun elo ti o ni imọlara si awọn aaye oofa.
Ⅱ.Iṣọkan Kemikali (Awọn itọkasi bọtini)
| Eroja | Ibiti akoonu | Išẹ |
| Erogba (C) | ≤0.08% | Ṣe iṣakoso ipata intergranular |
| Chromium (Kr) | 16.0-18.0% | Fọọmu palolo film, idilọwọ ipata |
| Nickel (Ni) | 10.0-14.0% | Stabilizes austenitic be, acid resistance |
| Molybdenum (Mo) | 2.0-3.0%. | Nkan pataki, pese resistance pitting |
| Manganese (Mn) | ≤2.00% | Deoxidizer |
| Silikoni (Si) | ≤0.75% | Deoxidizer |
Ⅲ.Aṣoju Mechanical Properties
Awọn ohun-ini Mechanical Iwọn otutu Yara (Ipinlẹ Ti a Fi Ojutu-Annealed)
Eyi jẹ ipo ti o wọpọ julọ fun irin alagbara irin 316, ti o funni ni iwọntunwọnsi to dara ti awọn ohun-ini.
| Ohun ini | Iye Aṣoju | Ibeere boṣewa (ASTM A240) |
| Agbara Fifẹ (Rm) | 515 - 620 MPa | ≥ 515 MPa |
| Agbara Ikore (Rp0.2) | 205 - 310 MPa | ≥ 205 MPa |
| Ilọsiwaju (A) | 40% - 50% | ≥ 40% |
| Lile (HBW) | 149-217 | ≤217 |
| Modulu Rirọ (E) | 193 GPA | - |
Awọn akọsilẹ:
1.Moderate Agbara: Agbara ikore ni ayika 200-300 MPa, ṣiṣe ki o rọrun lati dagba ati ilana.
2.Excellent Plasticity: Elongation ojo melo lori 40%, nfihan ga toughness ati resistance to brittle egugun.
3.Work Hardening: Agbara ati líle pọ si ni pataki lakoko iṣẹ tutu (fun apẹẹrẹ, yiyi tutu, iyaworan), ṣugbọn ṣiṣu dinku.
Ⅳ.Awọn Agbegbe Ohun elo akọkọ
1.Marine Engineering: Awọn ohun elo ọkọ oju omi, awọn iru ẹrọ ti ilu okeere, ohun elo isọdi.
2.Chemical & Energy Industries: Reactors, pipelines, ooru exchangers (sooro si acids / alkalis).
3.Medical & Food Industries: Awọn ohun elo iṣẹ abẹ, awọn ohun elo elegbogi, ẹrọ iṣelọpọ ounjẹ (pade awọn iṣedede mimọ).
4.Architecture & Ohun ọṣọ: Ilé awọn odi aṣọ-ikele, awọn iṣinipopada ni awọn agbegbe eti okun (sooro si ibajẹ sokiri iyọ).
Ⅴ.Wọpọ Awọn onipò ti ari
316L: Ẹya carbon-kekere (C≤0.03%), weldability ti o dara julọ ati idena ipata intergranular, o dara fun awọn paati welded apakan eru.
316H: Ẹya erogba-giga, agbara iwọn otutu ti o ga julọ, o dara fun awọn ẹya ti o ni iwọn otutu otutu.
