Birta aan lahayn 316 (Heerka US ASTM S31600, Heerarka Shiinaha 06Cr17Ni12Mo2) waa molybdenum-ka kooban austenitic bir ah, oo inta badan loo yaqaan "birta aan heerka badda" sababtoo ah iska caabbinta daxalka wanaagsan. Waxay ku salaysan tahay 304 bir ah oo lagu daray 2-3% molybdenum (Mo), taas oo si weyn u xoojisa iska caabbinta godad iyo daxalka dillaacsan.
Ⅰ. Astaamaha Muhiimka ah
1. Caabbin Daxalka Gaarka ah: Ku darida molybdenum-ka waxay siinaysaa waxqabad heersare ah oo ku saabsan deegaanka chloride (tusaale, biyaha badda, buufinta milixda), oo leh caabbinta godad aad uga badan tan 304 birta aan lahayn. Heerka daxalka ee 10% sulfuric acid wuxuu noqon karaa wax ka yar 0.1 mm / sanad.
2.Waxqabadka Heerkulka SareAwood heerkul sare oo wanaagsan iyo iska caabin oksaydh, oo leh heerkul adeeg oo joogto ah ilaa 870°C iyo adeeg kala go'a ilaa 925°C.
3.Mechanical Properties: Xoog wax soo saarka ≥205 MPa, xoog xajin ≥515 MPa, elongation ≥40%, bixinta adkeyn wanaagsan iyo awoodda adag shaqada.
4. Magnetism hooseeya: Non-magnetic ee gobolka xal-annealed; waxa laga yaabaa in ay xoogaa birlabaysan noqoto ka dib marka qabowgu shaqeeyo. Ku habboon qalabka xasaasiga ah ee meelaha magnetic.
ⅡHalabuurka Kiimikada (Tilmaamayaasha Furaha)
| Curiyaha | Kala Duwanka Mawduuca | Shaqada |
| Kaarboon (C) | ≤0.08% | Waxay xakameysaa daxalka intergranular |
| Chromium (Cr) | 16.0-18.0% | Samee filim dadban, waxay ka hortagtaa miridhku |
| Nickel (Ni) | 10.0-14.0% | Waxay dejisaa qaabka austenitic, caabbinta aashitada |
| Molybdenum (Mo) | 2.0-3.0% | Curiyaha muhiimka ah, wuxuu bixiyaa iska caabin godad ah |
| Manganese (Mn) | ≤2.00% | Deoxidizer |
| Silikoon (Si) | ≤0.75% | Deoxidizer |
ⅢGuryaha Makaanikada ee Caadiga ah
Guryaha Makaanikada Heerkulka Qolka (Xalka-Xalku-Xalmay)
Tani waa gobolka ugu badan ee 316 birta aan-ka-baxsan, oo bixisa dheelitirnaan wanaagsan oo guryaha ah.
| Hanti | Qiimaha caadiga ah | Shuruudaha Heerka (ASTM A240) |
| Xoogga Jilitaanka (M) | 515 - 620 MPa | ≥ 515 MPa |
| Xoogga Wax-soosaarka (Rp0.2) | 205 - 310 MPa | ≥ 205 MPa |
| Dheeraynta (A) | 40% - 50% | ≥ 40% |
| Adag (HBW) | 149 - 217 | ≤ 217 |
| Qalabka Laastikada ah (E) | 193 GPA | - |
Xusuusin:
1.Awood dhexdhexaad ahAwood soo saar ku dhawaad 200-300 MPa, taasoo sahlaysa samaynta iyo habaynta.
2.Caag heer sare ah: Kordhinta sida caadiga ah in ka badan 40%, taas oo muujinaysa adkaanta sare iyo iska caabinta jabka jaban.
3.Shaqo adagXoog iyo adayggu si aad ah ayay u kordheen inta lagu jiro shaqada qabowga (tusaale ahaan, duubista qabowga, sawirida), laakiin balaastiga ayaa hoos u dhacaya.
Ⅳ.Aagagga Codsiga Koowaad
1.Ingineeriyada baddaQalabka maraakiibta, meelaha xeebaha, qalabka lagu nadiifiyo.
2. Warshadaha Kiimikada & Tamarta: Reactors, dhuumaha, kulaylka beddelayaasha ( adkaysi u leh asiidhka/alkalis).
3. Warshadaha Caafimaadka & CuntadaQalabka qalliinka, qalabka dawooyinka, makiinadaha cuntada lagu farsameeyo (oo buuxiya heerarka nadaafadda).
4.Architecture & QurxintaDhisidda darbiyada daahyada, biraha meelaha xeebaha ah (u adkaysta daxalka buufinta milixda).
ⅤFasallada Guud ee Laga Helo
316L: Nooca kaarboon-hooseeya (C≤0.03%), alxanka wanaagsan iyo iska caabbinta daxalka intergranular, oo ku habboon qaybaha welded ee culus.
316H: Nooca kaarboon-sare, xoog heerkul sarreeya oo sarreeya, oo ku habboon qaababka cadaadiska heerkulka sare.
